Public vulnerability disclosure
CVE-2026-89317
JwtVerifierImpl.Verify does not enforce the JWS `crit` header (RFC 7515 §4.1.11)
publishedCWE-20CWE-347CWE-1288
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, so every token carrying a non-empty `crit` should have been rejected — and none were.
Technical severity6.3 mediumCVSS 4.0 · CNA: eclipse
Published2026-10-23Source updated 2026-11-02
Collected2026-11-022 attributed sources
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Eclipse KeyPont - GOSE Eclipse Foundation github.com/ThalesGroup/gose
|
≥ 0.7.3; ≤ 0.13.0-rc1 (affected, semver)
Other versions: unaffected |
CNA: eclipse |
| Eclipse KeyPont - GOSE Eclipse Foundation github.com/eclipse-keypont/gose
|
≥ 0; < 1.0.0-rc4 (affected, semver)
Other versions: unaffected |
CNA: eclipse |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 6.3 medium |
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 | CNA: eclipse |
Exploit evidence
- https://github.com/eclipse-keypont/gose/security/advisories/GHSA-445r-fpvv-hgwc
exploit · ADP: CISA-ADP