CVE-2026-89315

Published: Ott 23, 2026 Last Modified: Ott 23, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,9
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A

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.

248

Uncaught Exception

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Availability Confidentiality
Potential Impacts:
Dos: Crash, Exit, Or Restart Read Application Data
Applicable Platforms
Languages: C++, Java, C#
View CWE Details
https://github.com/eclipse-keypont/gose/security/advisories…
https://github.com/eclipse-keypont/gose/security/advisories/GHSA-hwm6-rwv6-xgq8