{"id":"CVE-2026-116630","aliases":[],"cve":{"records":[{"id":"CVE-2026-116630","source":"openjs","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-26T17:49:18.547Z","published":"2026-11-06T10:13:44.685Z","modified":"2026-11-10T17:41:21.172Z"}],"publishers":[{"name":"openjs","role":"CNA","organizationId":"ce714d77-add3-4f53-aff5-83d477b104bb","modified":"2026-11-06T10:13:44.685Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-11-10T17:41:21.172Z"}],"references":[{"url":"https://github.com/nodejs/undici/security/advisories/GHSA-5rm8-gv32-r954","tags":[],"source":"openjs"},{"url":"https://cna.openjsf.org/security-advisories.html","tags":[],"source":"openjs"}],"weaknesses":[{"id":"CWE-346","description":"CWE-346: Origin Validation Error","source":"openjs"},{"id":"CWE-524","description":"CWE-524: Use of Cache Containing Sensitive Information","source":"openjs"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-11-10T17:41:05.332969Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"title":"undici vulnerable to cross-user information disclosure via cross-origin redirect revalidation","titleSource":"openjs","descriptionSource":"openjs","description":"undici is an HTTP client for Node.js. In versions 7.0.0 through 7.30.1 and 8.0.0 through 8.12.3, when an Agent composes the redirect and shared cache interceptors, a cached response that is revalidated with a conditional request can be validated by a 304 Not Modified from a different origin. When the origin that stored the response redirects the conditional revalidation request to another origin, the redirect handler strips origin-bound credential headers but not the cache-generated If-None-Match or If-Modified-Since validators, so the redirect destination receives the original origin's validator and undici treats its 304 as successful revalidation of the stored representation. As a result, a shared cache can serve the original origin's stored authenticated response, including one gated by Authorization, to a later unauthenticated caller. The issue is fixed in undici 7.30.2 and 8.12.4, and users should upgrade to one of those versions or later. As a workaround, compose the interceptors as cache then redirect, use per-origin dispatchers and cache stores, or disable shared caching on redirect-capable requests.","score":5.9,"severity":"medium","published":"2026-11-06T10:13:44.685Z","modified":"2026-11-10T17:41:21.172Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"undici","name":"undici","platforms":[],"versions":[{"version":"7.0.0","status":"affected","lessThan":"7.30.2","versionType":"semver"},{"version":"7.30.2","status":"unaffected","versionType":"semver"},{"version":"8.0.0","status":"affected","lessThan":"8.12.4","versionType":"semver"},{"version":"8.12.4","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:npm/undici","packageIdentity":{"ecosystem":"npm","name":"undici"},"cpes":[],"source":"openjs","url":"https://www.cve.org/CVERecord?id=CVE-2026-116630"}],"remediation":[],"references":["https://github.com/nodejs/undici/security/advisories/GHSA-5rm8-gv32-r954","https://cna.openjsf.org/security-advisories.html"],"sources":[{"name":"CVE","id":"CVE-2026-116630","modified":"2026-11-10T17:41:21.172Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-116630"}],"assessments":[{"source":"openjs","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","score":5.9}],"sourceAffected":[],"observedAt":"2026-11-10T17:52:46.050Z","kev":{"status":"not-listed","checkedAt":"2026-11-15T03:50:33.051Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-11-09T16:20:31.723Z","attemptedAt":"2026-11-09T16:20:31.723Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-11-09T16:20:31.723Z","attemptedAt":"2026-11-09T16:20:31.723Z"},{"source":"EUVD","status":"available","checkedAt":"2026-11-09T16:20:31.723Z","attemptedAt":"2026-11-09T16:20:31.723Z"},{"source":"EPSS","status":"available","checkedAt":"2026-11-09T16:20:31.723Z","attemptedAt":"2026-11-09T16:20:31.723Z"}],"evidence":[{"source":"FIRST EPSS","id":"CVE-2026-116630","url":"https://www.first.org/epss/","probability":0.00148,"percentile":0.03991,"date":"2026-11-09","checkedAt":"2026-11-09T16:20:31.723Z"},{"source":"NVD","id":"CVE-2026-116630","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116630","modified":"2026-11-06T20:38:53.570","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","checkedAt":"2026-11-09T16:20:31.723Z"},{"source":"ENISA EUVD","id":"EUVD-2026-118184","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-118184","modified":"Nov 6, 2026, 10:13:44 AM","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","checkedAt":"2026-11-09T16:20:31.723Z"}],"aiSummary":{"text":"undici, an HTTP client for Node.js, has a vulnerability in versions 7.0.0-7.30.1 and 8.0.0-8.12.3, where a shared cache can serve an authenticated response to an unauthenticated caller. The issue occurs when a cached response is revalidated with a conditional request.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-11-06T10:36:12.888Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-116630"}]}}