{"items":[{"id":"NVI-00012155","kind":"vulnerability","title":"Microsoft.OpenApi.YamlReader vulnerable to denial of service via YAML alias expansion","revision":4,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-7pxr-59rr-hqj2","CVE-2026-72923"],"plain_summary":"GitHub lists this reviewed advisory for Microsoft.OpenApi.YamlReader, Microsoft.OpenApi.YamlReader, Microsoft.OpenApi.Readers. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-255410afed7f48f62645f42fb3dc8d85"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-14T20:11:31.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-b95d55be14e1b783e9f849e593a9b40b"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"1.845%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.79047. Missing scores are unknown.","source_id":"sr-255410afed7f48f62645f42fb3dc8d85"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-b95d55be14e1b783e9f849e593a9b40b","url":"https://github.com/advisories/GHSA-7pxr-59rr-hqj2","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-7pxr-59rr-hqj2","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:14:22.124Z"},{"id":"sr-255410afed7f48f62645f42fb3dc8d85","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-72923","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.862Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-b95d55be14e1b783e9f849e593a9b40b"],"technology":"Microsoft.OpenApi.YamlReader","known_exclusions":[],"conditions_summary":"### Impact\n\nA small YAML OpenAPI document containing nested anchors and aliases can cause uncontrolled resource consumption in Microsoft.OpenApi.YamlReader and Microsoft.OpenApi.Readers. The issue affects OpenAPI document parsing through the public YAML reader APIs and can cause the parsing process to allocate excessive memory and terminate through out-of-memory conditions.\n\n## Affected versions\n\n### Microsoft.OpenApi.YamlReader\n\n* `>= 2.0.0-preview.11, = 3.0.0, < 3.10.0`\n\n### Microsoft.OpenApi.Readers\n\n* `< 1.6.30`\n\n### Patches\n\n* For the 1.X major version, versions 1.6.30 and above are patched.\n* For the 2.X major version, versions 2.12.0 and above are patched.\n* For the 3.X major version, versions 3.10.0 and above are patched.\n\n## Impact\n\nApplications, CLIs, developer tools, or services that parse untrusted YAML OpenAPI documents in-process may be terminated by a crafted YAML document containing nested anchors and aliases.\n\nThe impact is availability/process termination only. This report does not claim remote code execution, authentication bypass, credential exposure, privilege escalation, data exposure, or Microsoft hosted service impact.\n\n## Details\n\nMicrosoft.Op","public_affected_ranges":[">= 3.0.0, < 3.10.0"]},{"certainty":"source_listed","source_ids":["sr-b95d55be14e1b783e9f849e593a9b40b"],"technology":"Microsoft.OpenApi.YamlReader","known_exclusions":[],"conditions_summary":"### Impact\n\nA small YAML OpenAPI document containing nested anchors and aliases can cause uncontrolled resource consumption in Microsoft.OpenApi.YamlReader and Microsoft.OpenApi.Readers. The issue affects OpenAPI document parsing through the public YAML reader APIs and can cause the parsing process to allocate excessive memory and terminate through out-of-memory conditions.\n\n## Affected versions\n\n### Microsoft.OpenApi.YamlReader\n\n* `>= 2.0.0-preview.11, = 3.0.0, < 3.10.0`\n\n### Microsoft.OpenApi.Readers\n\n* `< 1.6.30`\n\n### Patches\n\n* For the 1.X major version, versions 1.6.30 and above are patched.\n* For the 2.X major version, versions 2.12.0 and above are patched.\n* For the 3.X major version, versions 3.10.0 and above are patched.\n\n## Impact\n\nApplications, CLIs, developer tools, or services that parse untrusted YAML OpenAPI documents in-process may be terminated by a crafted YAML document containing nested anchors and aliases.\n\nThe impact is availability/process termination only. This report does not claim remote code execution, authentication bypass, credential exposure, privilege escalation, data exposure, or Microsoft hosted service impact.\n\n## Details\n\nMicrosoft.Op","public_affected_ranges":[">= 2.0.0-preview.11, < 2.12.0"]},{"certainty":"source_listed","source_ids":["sr-b95d55be14e1b783e9f849e593a9b40b"],"technology":"Microsoft.OpenApi.Readers","known_exclusions":[],"conditions_summary":"### Impact\n\nA small YAML OpenAPI document containing nested anchors and aliases can cause uncontrolled resource consumption in Microsoft.OpenApi.YamlReader and Microsoft.OpenApi.Readers. The issue affects OpenAPI document parsing through the public YAML reader APIs and can cause the parsing process to allocate excessive memory and terminate through out-of-memory conditions.\n\n## Affected versions\n\n### Microsoft.OpenApi.YamlReader\n\n* `>= 2.0.0-preview.11, = 3.0.0, < 3.10.0`\n\n### Microsoft.OpenApi.Readers\n\n* `< 1.6.30`\n\n### Patches\n\n* For the 1.X major version, versions 1.6.30 and above are patched.\n* For the 2.X major version, versions 2.12.0 and above are patched.\n* For the 3.X major version, versions 3.10.0 and above are patched.\n\n## Impact\n\nApplications, CLIs, developer tools, or services that parse untrusted YAML OpenAPI documents in-process may be terminated by a crafted YAML document containing nested anchors and aliases.\n\nThe impact is availability/process termination only. This report does not claim remote code execution, authentication bypass, credential exposure, privilege escalation, data exposure, or Microsoft hosted service impact.\n\n## Details\n\nMicrosoft.Op","public_affected_ranges":["< 1.6.30"]}],"null_published_at":"2026-11-08T19:53:33.656Z","source_updated_at":"2026-10-14T20:11:31.000Z","source_disclosed_at":"2026-10-14T20:11:29.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T23:14:22.124Z"},{"id":"NVI-00012155","kind":"vulnerability","title":"Microsoft.OpenApi.YamlReader vulnerable to denial of service via YAML alias expansion","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-7pxr-59rr-hqj2","CVE-2026-72923"],"plain_summary":"GitHub lists this reviewed advisory for Microsoft.OpenApi.YamlReader, Microsoft.OpenApi.YamlReader, Microsoft.OpenApi.Readers. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-217bf4c78a3b21b5cae5c2319b3c3fcb"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-14T20:11:31.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-b95d55be14e1b783e9f849e593a9b40b"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"1.845%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.79048. Missing scores are unknown.","source_id":"sr-217bf4c78a3b21b5cae5c2319b3c3fcb"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-b95d55be14e1b783e9f849e593a9b40b","url":"https://github.com/advisories/GHSA-7pxr-59rr-hqj2","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-7pxr-59rr-hqj2","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:14:22.124Z"},{"id":"sr-217bf4c78a3b21b5cae5c2319b3c3fcb","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-72923","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.286Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-b95d55be14e1b783e9f849e593a9b40b"],"technology":"Microsoft.OpenApi.YamlReader","known_exclusions":[],"conditions_summary":"### Impact\n\nA small YAML OpenAPI document containing nested anchors and aliases can cause uncontrolled resource consumption in Microsoft.OpenApi.YamlReader and Microsoft.OpenApi.Readers. The issue affects OpenAPI document parsing through the public YAML reader APIs and can cause the parsing process to allocate excessive memory and terminate through out-of-memory conditions.\n\n## Affected versions\n\n### Microsoft.OpenApi.YamlReader\n\n* `>= 2.0.0-preview.11, = 3.0.0, < 3.10.0`\n\n### Microsoft.OpenApi.Readers\n\n* `< 1.6.30`\n\n### Patches\n\n* For the 1.X major version, versions 1.6.30 and above are patched.\n* For the 2.X major version, versions 2.12.0 and above are patched.\n* For the 3.X major version, versions 3.10.0 and above are patched.\n\n## Impact\n\nApplications, CLIs, developer tools, or services that parse untrusted YAML OpenAPI documents in-process may be terminated by a crafted YAML document containing nested anchors and aliases.\n\nThe impact is availability/process termination only. This report does not claim remote code execution, authentication bypass, credential exposure, privilege escalation, data exposure, or Microsoft hosted service impact.\n\n## Details\n\nMicrosoft.Op","public_affected_ranges":[">= 3.0.0, < 3.10.0"]},{"certainty":"source_listed","source_ids":["sr-b95d55be14e1b783e9f849e593a9b40b"],"technology":"Microsoft.OpenApi.YamlReader","known_exclusions":[],"conditions_summary":"### Impact\n\nA small YAML OpenAPI document containing nested anchors and aliases can cause uncontrolled resource consumption in Microsoft.OpenApi.YamlReader and Microsoft.OpenApi.Readers. The issue affects OpenAPI document parsing through the public YAML reader APIs and can cause the parsing process to allocate excessive memory and terminate through out-of-memory conditions.\n\n## Affected versions\n\n### Microsoft.OpenApi.YamlReader\n\n* `>= 2.0.0-preview.11, = 3.0.0, < 3.10.0`\n\n### Microsoft.OpenApi.Readers\n\n* `< 1.6.30`\n\n### Patches\n\n* For the 1.X major version, versions 1.6.30 and above are patched.\n* For the 2.X major version, versions 2.12.0 and above are patched.\n* For the 3.X major version, versions 3.10.0 and above are patched.\n\n## Impact\n\nApplications, CLIs, developer tools, or services that parse untrusted YAML OpenAPI documents in-process may be terminated by a crafted YAML document containing nested anchors and aliases.\n\nThe impact is availability/process termination only. This report does not claim remote code execution, authentication bypass, credential exposure, privilege escalation, data exposure, or Microsoft hosted service impact.\n\n## Details\n\nMicrosoft.Op","public_affected_ranges":[">= 2.0.0-preview.11, < 2.12.0"]},{"certainty":"source_listed","source_ids":["sr-b95d55be14e1b783e9f849e593a9b40b"],"technology":"Microsoft.OpenApi.Readers","known_exclusions":[],"conditions_summary":"### Impact\n\nA small YAML OpenAPI document containing nested anchors and aliases can cause uncontrolled resource consumption in Microsoft.OpenApi.YamlReader and Microsoft.OpenApi.Readers. The issue affects OpenAPI document parsing through the public YAML reader APIs and can cause the parsing process to allocate excessive memory and terminate through out-of-memory conditions.\n\n## Affected versions\n\n### Microsoft.OpenApi.YamlReader\n\n* `>= 2.0.0-preview.11, = 3.0.0, < 3.10.0`\n\n### Microsoft.OpenApi.Readers\n\n* `< 1.6.30`\n\n### Patches\n\n* For the 1.X major version, versions 1.6.30 and above are patched.\n* For the 2.X major version, versions 2.12.0 and above are patched.\n* For the 3.X major version, versions 3.10.0 and above are patched.\n\n## Impact\n\nApplications, CLIs, developer tools, or services that parse untrusted YAML OpenAPI documents in-process may be terminated by a crafted YAML document containing nested anchors and aliases.\n\nThe impact is availability/process termination only. This report does not claim remote code execution, authentication bypass, credential exposure, privilege escalation, data exposure, or Microsoft hosted service impact.\n\n## Details\n\nMicrosoft.Op","public_affected_ranges":["< 1.6.30"]}],"null_published_at":"2026-11-04T18:04:03.159Z","source_updated_at":"2026-10-14T20:11:31.000Z","source_disclosed_at":"2026-10-14T20:11:29.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T23:14:22.124Z"},{"id":"NVI-00012155","kind":"vulnerability","title":"Microsoft.OpenApi.YamlReader vulnerable to denial of service via YAML alias expansion","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-7pxr-59rr-hqj2","CVE-2026-72923"],"plain_summary":"GitHub lists this reviewed advisory for Microsoft.OpenApi.YamlReader, Microsoft.OpenApi.YamlReader, Microsoft.OpenApi.Readers. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-17d262e7bd26cf570c38131f27acd9eb"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-14T20:11:31.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-b95d55be14e1b783e9f849e593a9b40b"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"1.845%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.79047. Missing scores are unknown.","source_id":"sr-17d262e7bd26cf570c38131f27acd9eb"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-b95d55be14e1b783e9f849e593a9b40b","url":"https://github.com/advisories/GHSA-7pxr-59rr-hqj2","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-7pxr-59rr-hqj2","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:14:22.124Z"},{"id":"sr-17d262e7bd26cf570c38131f27acd9eb","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-72923","publisher":"FIRST EPSS","observed_at":"2026-11-01T01:39:43.085Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-b95d55be14e1b783e9f849e593a9b40b"],"technology":"Microsoft.OpenApi.YamlReader","known_exclusions":[],"conditions_summary":"### Impact\n\nA small YAML OpenAPI document containing nested anchors and aliases can cause uncontrolled resource consumption in Microsoft.OpenApi.YamlReader and Microsoft.OpenApi.Readers. The issue affects OpenAPI document parsing through the public YAML reader APIs and can cause the parsing process to allocate excessive memory and terminate through out-of-memory conditions.\n\n## Affected versions\n\n### Microsoft.OpenApi.YamlReader\n\n* `>= 2.0.0-preview.11, = 3.0.0, < 3.10.0`\n\n### Microsoft.OpenApi.Readers\n\n* `< 1.6.30`\n\n### Patches\n\n* For the 1.X major version, versions 1.6.30 and above are patched.\n* For the 2.X major version, versions 2.12.0 and above are patched.\n* For the 3.X major version, versions 3.10.0 and above are patched.\n\n## Impact\n\nApplications, CLIs, developer tools, or services that parse untrusted YAML OpenAPI documents in-process may be terminated by a crafted YAML document containing nested anchors and aliases.\n\nThe impact is availability/process termination only. This report does not claim remote code execution, authentication bypass, credential exposure, privilege escalation, data exposure, or Microsoft hosted service impact.\n\n## Details\n\nMicrosoft.Op","public_affected_ranges":[">= 3.0.0, < 3.10.0"]},{"certainty":"source_listed","source_ids":["sr-b95d55be14e1b783e9f849e593a9b40b"],"technology":"Microsoft.OpenApi.YamlReader","known_exclusions":[],"conditions_summary":"### Impact\n\nA small YAML OpenAPI document containing nested anchors and aliases can cause uncontrolled resource consumption in Microsoft.OpenApi.YamlReader and Microsoft.OpenApi.Readers. The issue affects OpenAPI document parsing through the public YAML reader APIs and can cause the parsing process to allocate excessive memory and terminate through out-of-memory conditions.\n\n## Affected versions\n\n### Microsoft.OpenApi.YamlReader\n\n* `>= 2.0.0-preview.11, = 3.0.0, < 3.10.0`\n\n### Microsoft.OpenApi.Readers\n\n* `< 1.6.30`\n\n### Patches\n\n* For the 1.X major version, versions 1.6.30 and above are patched.\n* For the 2.X major version, versions 2.12.0 and above are patched.\n* For the 3.X major version, versions 3.10.0 and above are patched.\n\n## Impact\n\nApplications, CLIs, developer tools, or services that parse untrusted YAML OpenAPI documents in-process may be terminated by a crafted YAML document containing nested anchors and aliases.\n\nThe impact is availability/process termination only. This report does not claim remote code execution, authentication bypass, credential exposure, privilege escalation, data exposure, or Microsoft hosted service impact.\n\n## Details\n\nMicrosoft.Op","public_affected_ranges":[">= 2.0.0-preview.11, < 2.12.0"]},{"certainty":"source_listed","source_ids":["sr-b95d55be14e1b783e9f849e593a9b40b"],"technology":"Microsoft.OpenApi.Readers","known_exclusions":[],"conditions_summary":"### Impact\n\nA small YAML OpenAPI document containing nested anchors and aliases can cause uncontrolled resource consumption in Microsoft.OpenApi.YamlReader and Microsoft.OpenApi.Readers. The issue affects OpenAPI document parsing through the public YAML reader APIs and can cause the parsing process to allocate excessive memory and terminate through out-of-memory conditions.\n\n## Affected versions\n\n### Microsoft.OpenApi.YamlReader\n\n* `>= 2.0.0-preview.11, = 3.0.0, < 3.10.0`\n\n### Microsoft.OpenApi.Readers\n\n* `< 1.6.30`\n\n### Patches\n\n* For the 1.X major version, versions 1.6.30 and above are patched.\n* For the 2.X major version, versions 2.12.0 and above are patched.\n* For the 3.X major version, versions 3.10.0 and above are patched.\n\n## Impact\n\nApplications, CLIs, developer tools, or services that parse untrusted YAML OpenAPI documents in-process may be terminated by a crafted YAML document containing nested anchors and aliases.\n\nThe impact is availability/process termination only. This report does not claim remote code execution, authentication bypass, credential exposure, privilege escalation, data exposure, or Microsoft hosted service impact.\n\n## Details\n\nMicrosoft.Op","public_affected_ranges":["< 1.6.30"]}],"null_published_at":"2026-11-01T14:34:14.100Z","source_updated_at":"2026-10-14T20:11:31.000Z","source_disclosed_at":"2026-10-14T20:11:29.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T23:14:22.124Z"},{"id":"NVI-00012155","kind":"vulnerability","title":"Microsoft.OpenApi.YamlReader vulnerable to denial of service via YAML alias expansion","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-7pxr-59rr-hqj2","CVE-2026-72923"],"plain_summary":"GitHub lists this reviewed advisory for Microsoft.OpenApi.YamlReader, Microsoft.OpenApi.YamlReader, Microsoft.OpenApi.Readers. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-b95d55be14e1b783e9f849e593a9b40b"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-14T20:11:31.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-b95d55be14e1b783e9f849e593a9b40b"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-b95d55be14e1b783e9f849e593a9b40b","url":"https://github.com/advisories/GHSA-7pxr-59rr-hqj2","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-7pxr-59rr-hqj2","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:14:22.124Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-b95d55be14e1b783e9f849e593a9b40b"],"technology":"Microsoft.OpenApi.YamlReader","known_exclusions":[],"conditions_summary":"### Impact\n\nA small YAML OpenAPI document containing nested anchors and aliases can cause uncontrolled resource consumption in Microsoft.OpenApi.YamlReader and Microsoft.OpenApi.Readers. The issue affects OpenAPI document parsing through the public YAML reader APIs and can cause the parsing process to allocate excessive memory and terminate through out-of-memory conditions.\n\n## Affected versions\n\n### Microsoft.OpenApi.YamlReader\n\n* `>= 2.0.0-preview.11, = 3.0.0, < 3.10.0`\n\n### Microsoft.OpenApi.Readers\n\n* `< 1.6.30`\n\n### Patches\n\n* For the 1.X major version, versions 1.6.30 and above are patched.\n* For the 2.X major version, versions 2.12.0 and above are patched.\n* For the 3.X major version, versions 3.10.0 and above are patched.\n\n## Impact\n\nApplications, CLIs, developer tools, or services that parse untrusted YAML OpenAPI documents in-process may be terminated by a crafted YAML document containing nested anchors and aliases.\n\nThe impact is availability/process termination only. This report does not claim remote code execution, authentication bypass, credential exposure, privilege escalation, data exposure, or Microsoft hosted service impact.\n\n## Details\n\nMicrosoft.Op","public_affected_ranges":[">= 3.0.0, < 3.10.0"]},{"certainty":"source_listed","source_ids":["sr-b95d55be14e1b783e9f849e593a9b40b"],"technology":"Microsoft.OpenApi.YamlReader","known_exclusions":[],"conditions_summary":"### Impact\n\nA small YAML OpenAPI document containing nested anchors and aliases can cause uncontrolled resource consumption in Microsoft.OpenApi.YamlReader and Microsoft.OpenApi.Readers. The issue affects OpenAPI document parsing through the public YAML reader APIs and can cause the parsing process to allocate excessive memory and terminate through out-of-memory conditions.\n\n## Affected versions\n\n### Microsoft.OpenApi.YamlReader\n\n* `>= 2.0.0-preview.11, = 3.0.0, < 3.10.0`\n\n### Microsoft.OpenApi.Readers\n\n* `< 1.6.30`\n\n### Patches\n\n* For the 1.X major version, versions 1.6.30 and above are patched.\n* For the 2.X major version, versions 2.12.0 and above are patched.\n* For the 3.X major version, versions 3.10.0 and above are patched.\n\n## Impact\n\nApplications, CLIs, developer tools, or services that parse untrusted YAML OpenAPI documents in-process may be terminated by a crafted YAML document containing nested anchors and aliases.\n\nThe impact is availability/process termination only. This report does not claim remote code execution, authentication bypass, credential exposure, privilege escalation, data exposure, or Microsoft hosted service impact.\n\n## Details\n\nMicrosoft.Op","public_affected_ranges":[">= 2.0.0-preview.11, < 2.12.0"]},{"certainty":"source_listed","source_ids":["sr-b95d55be14e1b783e9f849e593a9b40b"],"technology":"Microsoft.OpenApi.Readers","known_exclusions":[],"conditions_summary":"### Impact\n\nA small YAML OpenAPI document containing nested anchors and aliases can cause uncontrolled resource consumption in Microsoft.OpenApi.YamlReader and Microsoft.OpenApi.Readers. The issue affects OpenAPI document parsing through the public YAML reader APIs and can cause the parsing process to allocate excessive memory and terminate through out-of-memory conditions.\n\n## Affected versions\n\n### Microsoft.OpenApi.YamlReader\n\n* `>= 2.0.0-preview.11, = 3.0.0, < 3.10.0`\n\n### Microsoft.OpenApi.Readers\n\n* `< 1.6.30`\n\n### Patches\n\n* For the 1.X major version, versions 1.6.30 and above are patched.\n* For the 2.X major version, versions 2.12.0 and above are patched.\n* For the 3.X major version, versions 3.10.0 and above are patched.\n\n## Impact\n\nApplications, CLIs, developer tools, or services that parse untrusted YAML OpenAPI documents in-process may be terminated by a crafted YAML document containing nested anchors and aliases.\n\nThe impact is availability/process termination only. This report does not claim remote code execution, authentication bypass, credential exposure, privilege escalation, data exposure, or Microsoft hosted service impact.\n\n## Details\n\nMicrosoft.Op","public_affected_ranges":["< 1.6.30"]}],"null_published_at":"2026-11-01T01:04:01.248Z","source_updated_at":"2026-10-14T20:11:31.000Z","source_disclosed_at":"2026-10-14T20:11:29.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T23:14:22.124Z"}],"next_cursor":null,"snapshot_revision":"42594"}