{"items":[{"id":"NVI-00015133","kind":"vulnerability","title":"undici vulnerable to cross-user information disclosure and parse-time crash via degenerate private cache directives","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-4cwx-7wf7-3272","CVE-2026-13697"],"plain_summary":"GitHub lists this reviewed advisory for undici, undici. 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-1918d2942fbca80e0e3f8eeb6d9b2b41"],"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":"2026-08-03T19:24:25.000Z","value":"7.4 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-29a210f20362f9f84bf77e1a036c7813"},{"kind":"EPSS","as_of":"2026-11-04T12:03:12.000Z","value":"0.569%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.47253. Missing scores are unknown.","source_id":"sr-1918d2942fbca80e0e3f8eeb6d9b2b41"}],"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-29a210f20362f9f84bf77e1a036c7813","url":"https://github.com/advisories/GHSA-4cwx-7wf7-3272","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-4cwx-7wf7-3272","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:58:33.950Z"},{"id":"sr-1918d2942fbca80e0e3f8eeb6d9b2b41","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-2026-13697","publisher":"FIRST EPSS","observed_at":"2026-11-04T17:58:50.320Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-29a210f20362f9f84bf77e1a036c7813"],"technology":"undici","known_exclusions":[],"conditions_summary":"### Summary\n\nTwo issues in undici's cache interceptor, both fixed by the same patch on `lib/util/cache.js`:\n\n1. **Shared-cache disclosure:** Responses with malformed qualified `Cache-Control: private` directives such as `private=\"\"` or `private=\",\"` can be incorrectly stored in the default shared cache, then served to a later caller with the same cache key.\n2. **Parse-time crash:** Mixed unqualified-and-qualified `private` directives in the same header (such as `public, max-age=60, private, private=\"hdr\"`) cause an uncaught `TypeError` in the cache-control parser, terminating the request.\n\n### Impact\n\n#### Shared-cache disclosure\n\nApplications using `interceptors.cache()` in shared mode may cache a user-specific response and serve it to a later caller with the same cache key. This can disclose private response bodies and headers, including `Set-Cookie`.\n\nRequired conditions:\n\n- the cache interceptor is enabled in shared mode, including the default configuration;\n- an upstream returns a malformed directive such as `Cache-Control: public, max-age=300, private=\"\"`;\n- another request later matches the same cache key, without a separating `Vary` header.\n\n#### Parse-time crash\n\nApplicati","public_affected_ranges":[">= 7.0.0, < 7.29.0"]},{"certainty":"source_listed","source_ids":["sr-29a210f20362f9f84bf77e1a036c7813"],"technology":"undici","known_exclusions":[],"conditions_summary":"### Summary\n\nTwo issues in undici's cache interceptor, both fixed by the same patch on `lib/util/cache.js`:\n\n1. **Shared-cache disclosure:** Responses with malformed qualified `Cache-Control: private` directives such as `private=\"\"` or `private=\",\"` can be incorrectly stored in the default shared cache, then served to a later caller with the same cache key.\n2. **Parse-time crash:** Mixed unqualified-and-qualified `private` directives in the same header (such as `public, max-age=60, private, private=\"hdr\"`) cause an uncaught `TypeError` in the cache-control parser, terminating the request.\n\n### Impact\n\n#### Shared-cache disclosure\n\nApplications using `interceptors.cache()` in shared mode may cache a user-specific response and serve it to a later caller with the same cache key. This can disclose private response bodies and headers, including `Set-Cookie`.\n\nRequired conditions:\n\n- the cache interceptor is enabled in shared mode, including the default configuration;\n- an upstream returns a malformed directive such as `Cache-Control: public, max-age=300, private=\"\"`;\n- another request later matches the same cache key, without a separating `Vary` header.\n\n#### Parse-time crash\n\nApplicati","public_affected_ranges":[">= 8.0.0, < 8.9.0"]}],"null_published_at":"2026-11-08T19:53:38.945Z","source_updated_at":"2026-08-03T19:24:25.000Z","source_disclosed_at":"2026-08-03T19:19:47.000Z","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":"2026-11-03T09:58:33.950Z"},{"id":"NVI-00015133","kind":"vulnerability","title":"undici vulnerable to cross-user information disclosure and parse-time crash via degenerate private cache directives","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-4cwx-7wf7-3272","CVE-2026-13697"],"plain_summary":"GitHub lists this reviewed advisory for undici, undici. 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-29a210f20362f9f84bf77e1a036c7813"],"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":"2026-08-03T19:24:25.000Z","value":"7.4 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-29a210f20362f9f84bf77e1a036c7813"}],"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-29a210f20362f9f84bf77e1a036c7813","url":"https://github.com/advisories/GHSA-4cwx-7wf7-3272","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-4cwx-7wf7-3272","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:58:33.950Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-29a210f20362f9f84bf77e1a036c7813"],"technology":"undici","known_exclusions":[],"conditions_summary":"### Summary\n\nTwo issues in undici's cache interceptor, both fixed by the same patch on `lib/util/cache.js`:\n\n1. **Shared-cache disclosure:** Responses with malformed qualified `Cache-Control: private` directives such as `private=\"\"` or `private=\",\"` can be incorrectly stored in the default shared cache, then served to a later caller with the same cache key.\n2. **Parse-time crash:** Mixed unqualified-and-qualified `private` directives in the same header (such as `public, max-age=60, private, private=\"hdr\"`) cause an uncaught `TypeError` in the cache-control parser, terminating the request.\n\n### Impact\n\n#### Shared-cache disclosure\n\nApplications using `interceptors.cache()` in shared mode may cache a user-specific response and serve it to a later caller with the same cache key. This can disclose private response bodies and headers, including `Set-Cookie`.\n\nRequired conditions:\n\n- the cache interceptor is enabled in shared mode, including the default configuration;\n- an upstream returns a malformed directive such as `Cache-Control: public, max-age=300, private=\"\"`;\n- another request later matches the same cache key, without a separating `Vary` header.\n\n#### Parse-time crash\n\nApplicati","public_affected_ranges":[">= 7.0.0, < 7.29.0"]},{"certainty":"source_listed","source_ids":["sr-29a210f20362f9f84bf77e1a036c7813"],"technology":"undici","known_exclusions":[],"conditions_summary":"### Summary\n\nTwo issues in undici's cache interceptor, both fixed by the same patch on `lib/util/cache.js`:\n\n1. **Shared-cache disclosure:** Responses with malformed qualified `Cache-Control: private` directives such as `private=\"\"` or `private=\",\"` can be incorrectly stored in the default shared cache, then served to a later caller with the same cache key.\n2. **Parse-time crash:** Mixed unqualified-and-qualified `private` directives in the same header (such as `public, max-age=60, private, private=\"hdr\"`) cause an uncaught `TypeError` in the cache-control parser, terminating the request.\n\n### Impact\n\n#### Shared-cache disclosure\n\nApplications using `interceptors.cache()` in shared mode may cache a user-specific response and serve it to a later caller with the same cache key. This can disclose private response bodies and headers, including `Set-Cookie`.\n\nRequired conditions:\n\n- the cache interceptor is enabled in shared mode, including the default configuration;\n- an upstream returns a malformed directive such as `Cache-Control: public, max-age=300, private=\"\"`;\n- another request later matches the same cache key, without a separating `Vary` header.\n\n#### Parse-time crash\n\nApplicati","public_affected_ranges":[">= 8.0.0, < 8.9.0"]}],"null_published_at":"2026-11-03T10:03:26.552Z","source_updated_at":"2026-08-03T19:24:25.000Z","source_disclosed_at":"2026-08-03T19:19:47.000Z","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":"2026-11-03T09:58:33.950Z"}],"next_cursor":null,"snapshot_revision":"42594"}