{"id":"CVE-2026-89313","aliases":["EUVD-2026-108633","GHSA-v7r8-g6h9-99vv"],"status":"published","title":"JwksTrustStore.Get returns the last fetched JWKS key (err=nil) when the requested kid is absent, instead of nil","description":"`JwksTrustStore.Get` assigned each parsed key to the function's **named return value** while refreshing the JWKS cache. When the requested `kid` was not present, the trailing naked `return` handed the caller the last key in the JWKS document together with a `nil` error — a confidently wrong answer instead of \"not found\".","severity":{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00349,"percentile":0.28779,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-706"],"published":"2026-10-23T08:40:55Z","modified":"2026-11-04T02:30:23Z","products":[{"vendor":"eclipse foundation","product":"eclipse keypont - gose"}],"references":[{"url":"https://github.com/eclipse-keypont/gose/security/advisories/GHSA-v7r8-g6h9-99vv","tags":["exploit","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89313.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89313","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-89313","title":"JwksTrustStore.Get returns the last fetched JWKS key (err=nil) when the requested kid is absent, instead of nil","description":"`JwksTrustStore.Get` assigned each parsed key to the function's **named return value** while refreshing the JWKS cache. When the requested `kid` was not present, the trailing naked `return` handed the caller the last key in the JWKS document together with a `nil` error — a confidently wrong answer instead of \"not found\".","status":"published","published":"2026-10-23T08:40:55.499Z","modified":"2026-11-02T12:49:31.095Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-706"],"updated_at":"2026-11-02T18:00:08.034842Z"}],"euvd":[{"id":"EUVD-2026-108633","description":"`JwksTrustStore.Get` assigned each parsed key to the function's **named return value** while refreshing the JWKS cache. When the requested `kid` was not present, the trailing naked `return` handed the caller the last key in the JWKS document together with a `nil` error — a confidently wrong answer instead of \"not found\".","status":"published","published":"2026-10-23T08:40:55Z","modified":"2026-11-02T12:49:31Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:58:45.728338Z"}],"nvd":[{"id":"CVE-2026-89313","description":"`JwksTrustStore.Get` assigned each parsed key to the function's **named return value** while refreshing the JWKS cache. When the requested `kid` was not present, the trailing naked `return` handed the caller the last key in the JWKS document together with a `nil` error — a confidently wrong answer instead of \"not found\".","status":"published","published":"2026-10-23T09:17:07.797Z","modified":"2026-11-02T13:17:39.283Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"}],"cwes":["CWE-706"],"updated_at":"2026-11-02T20:51:42.579129Z"}],"osv":[{"id":"CVE-2026-89313","title":"JwksTrustStore.Get returns the last fetched JWKS key (err=nil) when the requested kid is absent, instead of nil","description":"`JwksTrustStore.Get` assigned each parsed key to the function's **named return value** while refreshing the JWKS cache. When the requested `kid` was not present, the trailing naked `return` handed the caller the last key in the JWKS document together with a `nil` error — a confidently wrong answer instead of \"not found\".","status":"published","published":"2026-10-23T08:40:55.499Z","modified":"2026-11-04T02:30:23.771033713Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-706"],"updated_at":"2026-11-04T02:55:01.518827Z"}]}}