CVE-2025-68925
mediumpriority · track · 21EPSS 0.002 · 4 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.7–6.9
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
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affected products (3)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- GHSA-5pq9-5mpr-jj85Jervis Has a JWT Algorithm Confusion Vulnerability2026-01-13ghsa · osvUS
### Vulnerability https://github.com/samrocketman/jervis/blob/157d2b63ffa5c4bb1d8ee2254950fd2231de2b05/src/main/groovy/net/gleske/jervis/tools/SecurityIO.groovy#L244-L249 The code doesn't validate that the JWT header specifies `"alg":"RS256"`. ### Impact Depending on the broader system, this could allow JWT forgery. Internally this severity is low since JWT is only intended to interface with GitHub. External users should consider severity moderate. ### Patches Jervis patch will explicitly verify the algorithm in the header matches expectations and further verify the JWT structure. Upgrade to Jervis 2.2. ### Workarounds External users should consider using an alternate JWT library or upgrade. ### References - [RFC 7518: JSON Web Algorithms](https://datatracker.ietf.org/doc/html/rfc7518)
also known as (3)
Other names and identifiers for this entity.
sources
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references (8)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2025-68925cnnvd
- https://github.com/samrocketman/jervis/commit/c3981ff71de7b0f767dfe7b37a2372cb2a51974acnnvd
- https://github.com/samrocketman/jervis/security/advisories/GHSA-5pq9-5mpr-jj85cnnvd
- https://sam.gleske.net/jervis-api/2.2/Patchcnnvd
- https://github.com/samrocketman/jervis/commit/c3981ff71de7b0f767dfe7b37a2372cb2a51974aenisa_euvd
- https://github.com/samrocketman/jervis/security/advisories/GHSA-5pq9-5mpr-jj85enisa_euvd
- https://github.com/samrocketman/jervis/commit/c3981ff71de7b0f767dfe7b37a2372cb2a51974aPatchnvd
- https://github.com/samrocketman/jervis/security/advisories/GHSA-5pq9-5mpr-jj85PatchVendor Advisorynvd
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