{"affected":[{"defaultStatus":"unaffected","packageName":"github.com/ThalesGroup/gose","product":"Eclipse KeyPont - GOSE","source":"CNA: eclipse","vendor":"Eclipse Foundation","versions":[{"lessThanOrEqual":"0.13.0-rc1","status":"affected","version":"0.7.3","versionType":"semver"}]},{"defaultStatus":"unaffected","packageName":"github.com/eclipse-keypont/gose","product":"Eclipse KeyPont - GOSE","source":"CNA: eclipse","vendor":"Eclipse Foundation","versions":[{"lessThan":"1.0.0-rc4","status":"affected","version":"0","versionType":"semver"}]}],"cveId":"CVE-2026-89315","cwes":["CWE-248"],"description":"`JwtClaims.MarshalJSON` built a Go struct at runtime with `reflect.StructOf`, synthesising a field named `\"A\" + claimName` for each untyped claim. `reflect.StructOf` **panics** when a field name is not a valid Go identifier, or when it duplicates another field. Both conditions are reachable from ordinary JWT claim names.","epss":{"date":"2026-11-01","percentile":0.16802,"score":0.00253},"exploits":[],"kev":null,"metrics":[{"score":6.9,"severity":"medium","source":"CNA: eclipse","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"}],"modifiedAt":1793624354783,"publishedAt":1792745190146,"references":[{"source":"CNA: eclipse","tags":[],"url":"https://github.com/eclipse-keypont/gose/security/advisories/GHSA-hwm6-rwv6-xgq8"}],"remediation":[],"revision":"aef0697c63c79967ec3821c3b8623f7c580a7eb6e25d858400352c5902926200","sources":[{"modifiedAt":1793624354783,"name":"CNA: eclipse","retrievedAt":1793624959062,"url":"https://www.cve.org/CVERecord?id=CVE-2026-89315"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793624991044,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-89315"}],"ssvc":{"assessedAt":1793624024056,"automatable":"yes","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"JwtClaims.MarshalJSON panics via reflect.StructOf when any untyped claim key is not a valid Go identifier suffix","updatedAt":1793624991044}