Medium
6.9
JwtClaims.MarshalJSON panics via reflect.StructOf when any untyped claim key is not a valid Go identifier suffix
CVE-2026-89315
First seen on SecPulse
Affected packages
| Ecosystem | Package | Affected | Fixed |
|---|---|---|---|
| Eclipse Foundation | Eclipse KeyPont - GOSE |
< 1.0.0-rc4 |
1.0.0-rc4 |
Original description The description as published by the source.
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.
Source: CVE.org (CVE Program・cvelistV5) NVD GitHub Advisory
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov