CVE-2025-68702: Jervis has a SHA-256 Hex String Padding Bug

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-01-13 · updated 2026-06-17
Weakness: CWE-327

Description

Jervis is a library for Job DSL plugin scripts and shared Jenkins pipeline libraries. Prior to 2.2, Jervis uses padLeft(32, '0') when it should use padLeft(64, '0') because SHA-256 produces 32 bytes which equates to 64 hex characters. This vulnerability is fixed in 2.2.

Affected products

samrocketman jervis: before 2.2 — fixed in 2.2

How to fix

Upgrade to a fixed version: samrocketman jervis 2.2. Check the vendor advisory for mitigations.

References

https://github.com/samrocketman/jervis/commit/c3981ff71de7b0f767dfe7b37a2372cb2a51974a
https://github.com/samrocketman/jervis/security/advisories/GHSA-67rj-pjg6-pq59

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