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6.3 Medium

CVE-2026-89317 gose parsed the JWS `crit` header into `JwsHeader.Crit` and then never read it

Description

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.

Affected products and versions

Product Affected versions Fixed in
Eclipse KeyPont - GOSE 1.0 earliest → < 1.0.0-rc4 1.0.0-rc4

References

Timeline

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