{"items":[{"id":"NVI-00011930","kind":"vulnerability","title":"Handlebars: JavaScript Injection via AST Type Confusion in compile (bypass of CVE-2026-33937)","revision":4,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-8r5x-fm3f-whwj","CVE-2026-106446"],"plain_summary":"GitHub lists this reviewed advisory for handlebars. 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-15574da220a22cd840c8f31718a619f9"],"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":"2026-10-08T17:52:34.000Z","value":"9.8 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-61366773e854db2cc86f8f30f7afa81a"},{"kind":"CVSS","as_of":"2026-10-07T19:17:32.293Z","value":"9.8 CRITICAL (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-1fa434ffaa5dbed9ef0807e9f9a47693"},{"kind":"EPSS","as_of":"2026-11-04T12:03:12.000Z","value":"0.786%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.56249. Missing scores are unknown.","source_id":"sr-15574da220a22cd840c8f31718a619f9"}],"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-61366773e854db2cc86f8f30f7afa81a","url":"https://github.com/advisories/GHSA-8r5x-fm3f-whwj","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-8r5x-fm3f-whwj","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:23.763Z"},{"id":"sr-1fa434ffaa5dbed9ef0807e9f9a47693","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106446","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-106446","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:58:21.903Z"},{"id":"sr-15574da220a22cd840c8f31718a619f9","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-2026-106446","publisher":"FIRST EPSS","observed_at":"2026-11-04T17:58:50.309Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-61366773e854db2cc86f8f30f7afa81a"],"technology":"handlebars","known_exclusions":[],"conditions_summary":"## Summary\n\n`Handlebars.compile()` and `Handlebars.precompile()` accept a pre-parsed AST as well as a template string. Handlebars 4.7.9 added validation for such ASTs. It only checks values on `PathExpression`, `NumberLiteral` and `BooleanLiteral` nodes, and the compiler still writes several other AST values into the generated JavaScript unchecked.\n\nIf an application passes an untrusted object to `compile()` or `precompile()`, such as a parsed JSON request body, that object can carry arbitrary JavaScript. With `compile()`, the code runs on the server when the template renders. With `precompile()`, it ends up in the precompiled output and runs wherever that output is loaded.\n\nApplications that only ever pass template **strings** are not affected.\n\nThis bypasses the AST validation added in 4.7.9 for GHSA-2w6w-674q-4c4q, GHSA-xhpv-hc6g-r9c6 and GHSA-3mfm-83xf-c92r.\n\n## Details\n\nThe 4.7.9 validator runs in `parseWithoutProcessing()` and walks the whole AST. It only checks values on nodes whose `type` is `PathExpression`, `NumberLiteral` or `BooleanLiteral`. It passes over plain objects without a `type`, and over strings and other non-object values. The compiler reads these values from ","public_affected_ranges":[">= 4.0.0, <= 4.7.9"]}],"null_published_at":"2026-11-08T19:53:38.928Z","source_updated_at":"2026-10-08T17:52:34.000Z","source_disclosed_at":"2026-10-08T17:52:32.000Z","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":"2026-11-01T00:58:23.763Z"},{"id":"NVI-00011930","kind":"vulnerability","title":"Handlebars: JavaScript Injection via AST Type Confusion in compile (bypass of CVE-2026-33937)","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-8r5x-fm3f-whwj","CVE-2026-106446"],"plain_summary":"GitHub lists this reviewed advisory for handlebars. 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-191d317e683e204765a7f24e6c219404"],"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":"2026-10-08T17:52:34.000Z","value":"9.8 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-61366773e854db2cc86f8f30f7afa81a"},{"kind":"CVSS","as_of":"2026-10-07T19:17:32.293Z","value":"9.8 CRITICAL (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-1fa434ffaa5dbed9ef0807e9f9a47693"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.786%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.56136. Missing scores are unknown.","source_id":"sr-191d317e683e204765a7f24e6c219404"}],"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-61366773e854db2cc86f8f30f7afa81a","url":"https://github.com/advisories/GHSA-8r5x-fm3f-whwj","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-8r5x-fm3f-whwj","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:23.763Z"},{"id":"sr-1fa434ffaa5dbed9ef0807e9f9a47693","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106446","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-106446","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:58:21.903Z"},{"id":"sr-191d317e683e204765a7f24e6c219404","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-2026-106446","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.839Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-61366773e854db2cc86f8f30f7afa81a"],"technology":"handlebars","known_exclusions":[],"conditions_summary":"## Summary\n\n`Handlebars.compile()` and `Handlebars.precompile()` accept a pre-parsed AST as well as a template string. Handlebars 4.7.9 added validation for such ASTs. It only checks values on `PathExpression`, `NumberLiteral` and `BooleanLiteral` nodes, and the compiler still writes several other AST values into the generated JavaScript unchecked.\n\nIf an application passes an untrusted object to `compile()` or `precompile()`, such as a parsed JSON request body, that object can carry arbitrary JavaScript. With `compile()`, the code runs on the server when the template renders. With `precompile()`, it ends up in the precompiled output and runs wherever that output is loaded.\n\nApplications that only ever pass template **strings** are not affected.\n\nThis bypasses the AST validation added in 4.7.9 for GHSA-2w6w-674q-4c4q, GHSA-xhpv-hc6g-r9c6 and GHSA-3mfm-83xf-c92r.\n\n## Details\n\nThe 4.7.9 validator runs in `parseWithoutProcessing()` and walks the whole AST. It only checks values on nodes whose `type` is `PathExpression`, `NumberLiteral` or `BooleanLiteral`. It passes over plain objects without a `type`, and over strings and other non-object values. The compiler reads these values from ","public_affected_ranges":[">= 4.0.0, <= 4.7.9"]}],"null_published_at":"2026-11-06T00:30:00.627Z","source_updated_at":"2026-10-08T17:52:34.000Z","source_disclosed_at":"2026-10-08T17:52:32.000Z","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":"2026-11-01T00:58:23.763Z"},{"id":"NVI-00011930","kind":"vulnerability","title":"Handlebars: JavaScript Injection via AST Type Confusion in compile (bypass of CVE-2026-33937)","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-8r5x-fm3f-whwj","CVE-2026-106446"],"plain_summary":"GitHub lists this reviewed advisory for handlebars. 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-1fa434ffaa5dbed9ef0807e9f9a47693"],"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":"2026-10-08T17:52:34.000Z","value":"9.8 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-61366773e854db2cc86f8f30f7afa81a"},{"kind":"CVSS","as_of":"2026-10-07T19:17:32.293Z","value":"9.8 CRITICAL (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-1fa434ffaa5dbed9ef0807e9f9a47693"}],"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-61366773e854db2cc86f8f30f7afa81a","url":"https://github.com/advisories/GHSA-8r5x-fm3f-whwj","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-8r5x-fm3f-whwj","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:23.763Z"},{"id":"sr-1fa434ffaa5dbed9ef0807e9f9a47693","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106446","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-106446","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:58:21.903Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-61366773e854db2cc86f8f30f7afa81a"],"technology":"handlebars","known_exclusions":[],"conditions_summary":"## Summary\n\n`Handlebars.compile()` and `Handlebars.precompile()` accept a pre-parsed AST as well as a template string. Handlebars 4.7.9 added validation for such ASTs. It only checks values on `PathExpression`, `NumberLiteral` and `BooleanLiteral` nodes, and the compiler still writes several other AST values into the generated JavaScript unchecked.\n\nIf an application passes an untrusted object to `compile()` or `precompile()`, such as a parsed JSON request body, that object can carry arbitrary JavaScript. With `compile()`, the code runs on the server when the template renders. With `precompile()`, it ends up in the precompiled output and runs wherever that output is loaded.\n\nApplications that only ever pass template **strings** are not affected.\n\nThis bypasses the AST validation added in 4.7.9 for GHSA-2w6w-674q-4c4q, GHSA-xhpv-hc6g-r9c6 and GHSA-3mfm-83xf-c92r.\n\n## Details\n\nThe 4.7.9 validator runs in `parseWithoutProcessing()` and walks the whole AST. It only checks values on nodes whose `type` is `PathExpression`, `NumberLiteral` or `BooleanLiteral`. It passes over plain objects without a `type`, and over strings and other non-object values. The compiler reads these values from ","public_affected_ranges":[">= 4.0.0, <= 4.7.9"]}],"null_published_at":"2026-11-03T10:03:31.377Z","source_updated_at":"2026-10-08T17:52:34.000Z","source_disclosed_at":"2026-10-08T17:52:32.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-01T00:58:23.763Z"},{"id":"NVI-00011930","kind":"vulnerability","title":"Handlebars: JavaScript Injection via AST Type Confusion in compile (bypass of CVE-2026-33937)","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-8r5x-fm3f-whwj","CVE-2026-106446"],"plain_summary":"GitHub lists this reviewed advisory for handlebars. 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-61366773e854db2cc86f8f30f7afa81a"],"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":"2026-10-08T17:52:34.000Z","value":"9.8 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-61366773e854db2cc86f8f30f7afa81a"}],"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-61366773e854db2cc86f8f30f7afa81a","url":"https://github.com/advisories/GHSA-8r5x-fm3f-whwj","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-8r5x-fm3f-whwj","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:23.763Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-61366773e854db2cc86f8f30f7afa81a"],"technology":"handlebars","known_exclusions":[],"conditions_summary":"## Summary\n\n`Handlebars.compile()` and `Handlebars.precompile()` accept a pre-parsed AST as well as a template string. Handlebars 4.7.9 added validation for such ASTs. It only checks values on `PathExpression`, `NumberLiteral` and `BooleanLiteral` nodes, and the compiler still writes several other AST values into the generated JavaScript unchecked.\n\nIf an application passes an untrusted object to `compile()` or `precompile()`, such as a parsed JSON request body, that object can carry arbitrary JavaScript. With `compile()`, the code runs on the server when the template renders. With `precompile()`, it ends up in the precompiled output and runs wherever that output is loaded.\n\nApplications that only ever pass template **strings** are not affected.\n\nThis bypasses the AST validation added in 4.7.9 for GHSA-2w6w-674q-4c4q, GHSA-xhpv-hc6g-r9c6 and GHSA-3mfm-83xf-c92r.\n\n## Details\n\nThe 4.7.9 validator runs in `parseWithoutProcessing()` and walks the whole AST. It only checks values on nodes whose `type` is `PathExpression`, `NumberLiteral` or `BooleanLiteral`. It passes over plain objects without a `type`, and over strings and other non-object values. The compiler reads these values from ","public_affected_ranges":[">= 4.0.0, <= 4.7.9"]}],"null_published_at":"2026-11-01T01:03:56.616Z","source_updated_at":"2026-10-08T17:52:34.000Z","source_disclosed_at":"2026-10-08T17:52:32.000Z","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":"2026-11-01T00:58:23.763Z"}],"next_cursor":null,"snapshot_revision":"42594"}