[ CVE-2026-89315 · Published 23 Oct 2026 ]
Vulnerability in Eclipse Foundation Eclipse KeyPont - GOSE
CVSS 6.9
EPSS <1%No fix listed yet
[ Description ]Official 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.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.