Medium severityNVD Advisory· Published Oct 23, 2026
CVE-2026-89315
CVE-2026-89315
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.
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Affected products
1Patches
Vulnerability mechanics
References
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