{"id":"EUVD-2026-57859","revision":"36d10961e7c94ca2b91db5c1c297141b","records":[{"revision":"36d10961e7c94ca2b91db5c1c297141b","observedAt":"2026-11-07T11:31:58.995+00:00","statement":{"source":"euvd","id":"EUVD-2026-57859","aliases":["CVE-2026-49478","GHSA-f5mr-q85p-6hh6"],"title":"Fulcio is a certificate authority for issuing code signing certificates for an OpenID Connect (OIDC) identity. Versions through 1.8.5 improperly follow cross-host redirects and attach Kubernetes ServiceAccount tokens during OIDC discovery, …","description":"Fulcio is a certificate authority for issuing code signing certificates for an OpenID Connect (OIDC) identity. Versions through 1.8.5 improperly follow cross-host redirects and attach Kubernetes ServiceAccount tokens during OIDC discovery, allowing a malicious or compromised issuer to perform blind SSRF, substitute and cache malicious JWKS keys, or disclose ServiceAccount tokens to external hosts. Version 1.8.6 blocks cross-host redirects, restricts token injection, and restricts local token loading. No known workarounds are available.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N","score":8.7,"severity":null}],"references":["https://github.com/sigstore/fulcio/security/advisories/GHSA-f5mr-q85p-6hh6","https://github.com/sigstore/fulcio/pull/2354","https://github.com/sigstore/fulcio/commit/378c654f48c3bafdced04ead7010aab2cb4c6ca1","https://github.com/sigstore/fulcio/releases/tag/v1.8.6"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-57859","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Aug 13, 2026, 1:08:21 PM","dateUpdated":"Aug 15, 2026, 3:14:47 AM"},"relatedAdvisories":[{"id":"RHSA-2026:48913","title":"Red Hat Security Advisory: RHACS 4.10.6 security and bug fix update","vulnerabilityIds":["CVE-2026-13149","CVE-2026-41889","CVE-2026-49478","CVE-2026-49978","CVE-2026-50163","CVE-2026-53492","CVE-2026-59869"]},{"id":"RHSA-2026:48872","title":"Red Hat Security Advisory: RHACS 4.9.10 security and bug fix update","vulnerabilityIds":["CVE-2026-13149","CVE-2026-41889","CVE-2026-49478","CVE-2026-49978","CVE-2026-50163","CVE-2026-53488","CVE-2026-53492","CVE-2026-59869"]}],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-57859","identifiers":["EUVD-2026-57859","CVE-2026-49478","GHSA-f5mr-q85p-6hh6"]},"retained":false,"historicalAffected":[]}],"coverage":[]}