CVE-2026-89317
Medium
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.
SeverityMedium
CVSS6.3
Exploit probability—
ProductEclipse KeyPont - GOSE
PublishedOct 23, 2026
First seenOct 23, 2026
How to fix
Update
- Eclipse Foundation Eclipse KeyPont - GOSE1.0.0-rc4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Eclipse Foundation Eclipse KeyPont - GOSE | 0.7.3 ≤ v ≤ 0.13.0-rc1, v < 1.0.0-rc4 | 1.0.0-rc4 |
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