CVE-2026-89315

`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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/eclipse-keypont/gose/security/advisories/GHSA-hwm6-rwv6-xgq8

Configurations

No configuration.

History

23 Oct 2026, 09:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-23 09:17

Updated : 2026-10-23 19:30

NVD link : CVE-2026-89315

Mitre link : CVE-2026-89315

CVE.ORG link : CVE-2026-89315

JSON object : View

Products Affected

No product.

CWE

CWE-248

Uncaught Exception

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CVE-2026-89315

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