Advisory record · GHSA-67rj-pjg6-pq59

Jervis Has a SHA-256 Hex String Padding Bug

CVSS 8.7 HighEPSS 0.0017 · 6th percentile

Published by the GitHub Advisory Database at 13 Jan 2026, 14:52 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
net.gleske:jervisMaven<2.22.2
Identifiers
GHSA-67rj-pjg6-pq59 · CVE-2025-68702
Weakness (CWE)
CWE-327
Published
13 Jan 2026
Updated
3 Feb 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Jervis (Maven net.gleske:jervis) versions before 2.2 pad SHA-256 hex strings to 32 characters instead of 64, so hashes with leading zero bytes come out with inconsistent lengths. The source describes the impact as comparison failures and possible security issues in hash-based comparisons, and says the risk is high only if consumers call these methods directly. Upgrade to Jervis 2.2. The source lists no other workaround beyond using a different hash function.

Written 7 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.7 High 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0017, the 6th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:09 UTC First seen by agentprime
  2. 31 Oct 2026, 15:09 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.