{"id":"CVE-2026-89317","title":"JwtVerifierImpl.Verify does not enforce the JWS `crit` header (RFC 7515 §4.1.11)","summary":"gose parsed the JWS `crit` header into `JwsHeader.Crit` and then never read it. RFC 7515 §4.1.11 requires a recipient to reject a JWS whose listed critical extension parameters it does not understand. gose implements no header extensions…","severity":"medium","cvss":6.3,"cvssVector":"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","cvssSource":"cna","cwe":["CWE-20","CWE-347","CWE-1288"],"vendor":"Eclipse Foundation","product":"github.com/ThalesGroup/gose","affected":["github.com/ThalesGroup/gose >= 0.7.3 <= 0.13.0-rc1","github.com/eclipse-keypont/gose < 1.0.0-rc4"],"published":"2026-10-23","updated":"2026-10-23","sourceUpdated":"2026-10-23T08:50:22.987Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89317","references":[{"url":"https://github.com/eclipse-keypont/gose/security/advisories/GHSA-445r-fpvv-hgwc"}],"tags":["cve.org"],"ingestedAt":"2026-10-23T09:20:44.058Z","slug":"CVE-2026-89317","body":"## Overview\n\ngose parsed the JWS `crit` header into `JwsHeader.Crit` and then never read it. RFC 7515 §4.1.11 requires a recipient to reject a JWS whose listed critical extension parameters it does not understand. gose implements no header extensions, so every token carrying a non-empty `crit` should have been rejected — and none were.\n\n## Affected\n\n- `github.com/ThalesGroup/gose >= 0.7.3 <= 0.13.0-rc1`\n- `github.com/eclipse-keypont/gose < 1.0.0-rc4`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":35,"depthScoreParts":{"impact":34.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}