GHSA-67rj-pjg6-pq59

Suggest an improvement
Source
https://github.com/advisories/GHSA-67rj-pjg6-pq59
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/01/GHSA-67rj-pjg6-pq59/GHSA-67rj-pjg6-pq59.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-67rj-pjg6-pq59
Aliases
Published
2026-01-13T14:52:31Z
Modified
2026-02-03T03:11:40Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
  • 8.7 (High) CVSS_V4 - 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 CVSS Calculator
Summary
Jervis Has a SHA-256 Hex String Padding Bug
Details

Vulnerability

https://github.com/samrocketman/jervis/blob/157d2b63ffa5c4bb1d8ee2254950fd2231de2b05/src/main/groovy/net/gleske/jervis/tools/SecurityIO.groovy#L622-L626

padLeft(32, '0') should be padLeft(64, '0'). SHA-256 produces 32 bytes = 64 hex characters.

Impact

  • Inconsistent hash lengths when leading bytes are zero
  • Comparison failures for hashes with leading zeros
  • Potential security issues in hash-based comparisons
  • Could cause subtle bugs in systems relying on consistent hash lengths

Severity is considered low for internal uses of this library but if there's any consumer using these methods directly then this is considered high.

Patches

Upgrade to Jervis 2.2.

Workarounds

Use an alternate SHA-256 hash function or upgrade.

Database specific 
{
    "cwe_ids":  [
        "CWE-327"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-01-13T14:52:31Z",
    "nvd_published_at":  "2026-01-13T20:16:07Z",
    "severity":  "HIGH"
}
References

Affected packages

Maven / net.gleske:jervis

Package

Name
net.gleske:jervis
View open source insights on deps.dev
Purl
pkg:maven/net.gleske/jervis

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.2

Affected versions

0.*
0.1
0.2
0.3
0.4
0.5
0.5.1
0.5.2
0.6
0.7
0.8
0.9
0.10
0.11
0.12
0.13
1.*
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
2.*
2.0
2.0.1
2.1

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/01/GHSA-67rj-pjg6-pq59/GHSA-67rj-pjg6-pq59.json"