{"items":[{"id":"NVI-00011887","kind":"vulnerability","title":"Kiota: Code injection through doc-comment delimiter reformation in Kiota Java and PHP generators","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-rm89-rhwj-9j92","CVE-2026-105796"],"plain_summary":"GitHub lists this reviewed advisory for Microsoft.OpenApi.Kiota, Microsoft.OpenApi.Kiota.Builder. 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-349d7f0fa6fac3deb0b6a2ec53e4495d"],"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":"2026-10-06T15:36:01.000Z","value":"8.8 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-521c8a1e7a92575d7d52166cacf28169"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.896%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.59559. Missing scores are unknown.","source_id":"sr-349d7f0fa6fac3deb0b6a2ec53e4495d"}],"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-521c8a1e7a92575d7d52166cacf28169","url":"https://github.com/advisories/GHSA-rm89-rhwj-9j92","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-rm89-rhwj-9j92","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:59:16.959Z"},{"id":"sr-349d7f0fa6fac3deb0b6a2ec53e4495d","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-2026-105796","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.263Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-521c8a1e7a92575d7d52166cacf28169"],"technology":"Microsoft.OpenApi.Kiota","known_exclusions":[],"conditions_summary":"### Impact\n\nAn attacker who controls or tampers with an OpenAPI description can cause Kiota to emit attacker-controlled Java or PHP source outside a generated documentation comment. The affected sanitizers remove comment terminators rather than neutralizing them, allowing a terminator to reform from overlapping characters or from subsequent normalization. The Java sanitizer also removes non-ASCII characters after removing terminators, which can create a new terminator.\n\nExploitation requires a developer or build pipeline to generate a client from the malicious description and subsequently compile and load the Java output, or load the PHP output. Code executes in the consuming application's or build environment's security context, not merely because Kiota reads the description.\n\n### Affected versions\n\nThe affected NuGet packages are `Microsoft.OpenApi.Kiota` and `Microsoft.OpenApi.Kiota.Builder`. The Java normalization-order defect was introduced in version 0.5.0 and remains present through version 1.34.1, including the separate 1.29.1 security-backport release. The PHP delimiter-reformation variant is also present in version 1.34.1 and 1.29.1. Version 1.35.0 fixes both variants.\n\nT","public_affected_ranges":[">= 0.5.0, < 1.35.0"]},{"certainty":"source_listed","source_ids":["sr-521c8a1e7a92575d7d52166cacf28169"],"technology":"Microsoft.OpenApi.Kiota.Builder","known_exclusions":[],"conditions_summary":"### Impact\n\nAn attacker who controls or tampers with an OpenAPI description can cause Kiota to emit attacker-controlled Java or PHP source outside a generated documentation comment. The affected sanitizers remove comment terminators rather than neutralizing them, allowing a terminator to reform from overlapping characters or from subsequent normalization. The Java sanitizer also removes non-ASCII characters after removing terminators, which can create a new terminator.\n\nExploitation requires a developer or build pipeline to generate a client from the malicious description and subsequently compile and load the Java output, or load the PHP output. Code executes in the consuming application's or build environment's security context, not merely because Kiota reads the description.\n\n### Affected versions\n\nThe affected NuGet packages are `Microsoft.OpenApi.Kiota` and `Microsoft.OpenApi.Kiota.Builder`. The Java normalization-order defect was introduced in version 0.5.0 and remains present through version 1.34.1, including the separate 1.29.1 security-backport release. The PHP delimiter-reformation variant is also present in version 1.34.1 and 1.29.1. Version 1.35.0 fixes both variants.\n\nT","public_affected_ranges":[">= 0.5.0, < 1.35.0"]}],"null_published_at":"2026-11-07T18:43:15.097Z","source_updated_at":"2026-10-06T15:36:01.000Z","source_disclosed_at":"2026-10-06T15:36:00.000Z","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":"2026-11-01T00:59:16.959Z"},{"id":"NVI-00011887","kind":"vulnerability","title":"Kiota: Code injection through doc-comment delimiter reformation in Kiota Java and PHP generators","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-rm89-rhwj-9j92","CVE-2026-105796"],"plain_summary":"GitHub lists this reviewed advisory for Microsoft.OpenApi.Kiota, Microsoft.OpenApi.Kiota.Builder. 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-521c8a1e7a92575d7d52166cacf28169"],"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":"2026-10-06T15:36:01.000Z","value":"8.8 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-521c8a1e7a92575d7d52166cacf28169"}],"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-521c8a1e7a92575d7d52166cacf28169","url":"https://github.com/advisories/GHSA-rm89-rhwj-9j92","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-rm89-rhwj-9j92","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:59:16.959Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-521c8a1e7a92575d7d52166cacf28169"],"technology":"Microsoft.OpenApi.Kiota","known_exclusions":[],"conditions_summary":"### Impact\n\nAn attacker who controls or tampers with an OpenAPI description can cause Kiota to emit attacker-controlled Java or PHP source outside a generated documentation comment. The affected sanitizers remove comment terminators rather than neutralizing them, allowing a terminator to reform from overlapping characters or from subsequent normalization. The Java sanitizer also removes non-ASCII characters after removing terminators, which can create a new terminator.\n\nExploitation requires a developer or build pipeline to generate a client from the malicious description and subsequently compile and load the Java output, or load the PHP output. Code executes in the consuming application's or build environment's security context, not merely because Kiota reads the description.\n\n### Affected versions\n\nThe affected NuGet packages are `Microsoft.OpenApi.Kiota` and `Microsoft.OpenApi.Kiota.Builder`. The Java normalization-order defect was introduced in version 0.5.0 and remains present through version 1.34.1, including the separate 1.29.1 security-backport release. The PHP delimiter-reformation variant is also present in version 1.34.1 and 1.29.1. Version 1.35.0 fixes both variants.\n\nT","public_affected_ranges":[">= 0.5.0, < 1.35.0"]},{"certainty":"source_listed","source_ids":["sr-521c8a1e7a92575d7d52166cacf28169"],"technology":"Microsoft.OpenApi.Kiota.Builder","known_exclusions":[],"conditions_summary":"### Impact\n\nAn attacker who controls or tampers with an OpenAPI description can cause Kiota to emit attacker-controlled Java or PHP source outside a generated documentation comment. The affected sanitizers remove comment terminators rather than neutralizing them, allowing a terminator to reform from overlapping characters or from subsequent normalization. The Java sanitizer also removes non-ASCII characters after removing terminators, which can create a new terminator.\n\nExploitation requires a developer or build pipeline to generate a client from the malicious description and subsequently compile and load the Java output, or load the PHP output. Code executes in the consuming application's or build environment's security context, not merely because Kiota reads the description.\n\n### Affected versions\n\nThe affected NuGet packages are `Microsoft.OpenApi.Kiota` and `Microsoft.OpenApi.Kiota.Builder`. The Java normalization-order defect was introduced in version 0.5.0 and remains present through version 1.34.1, including the separate 1.29.1 security-backport release. The PHP delimiter-reformation variant is also present in version 1.34.1 and 1.29.1. Version 1.35.0 fixes both variants.\n\nT","public_affected_ranges":[">= 0.5.0, < 1.35.0"]}],"null_published_at":"2026-11-01T01:03:56.613Z","source_updated_at":"2026-10-06T15:36:01.000Z","source_disclosed_at":"2026-10-06T15:36:00.000Z","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":"2026-11-01T00:59:16.959Z"}],"next_cursor":null,"snapshot_revision":"42594"}