CVE-2025-68925

Jervis has a JWT Algorithm Confusion Vulnerability

State: Published
Severity: 6.9 Medium
Published: Jan 13, 2026
Updated: Jan 13, 2026
Reserved: Dec 24, 2025

Description

Jervis is a library for Job DSL plugin scripts and shared Jenkins pipeline libraries. Prior to 2.2, the code doesn't validate that the JWT header specifies "alg":"RS256". This vulnerability is fixed in 2.2.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-347 Improper Verification of Cryptographic Signature

Affected Products

Product	Versions
jervissamrocketman	< 2.2Affected

References

https://github.com/samrocketman/jervis/security/advisories/GHSA-5pq9-5mpr-jj85
https://github.com/samrocketman/jervis/commit/c3981ff71de7b0f767dfe7b37a2372cb2a51974a

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