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CVE

CVE-2025-68702

Jervis Has a SHA-256 Hex String Padding Bug
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CVE

CVE-2025-68702

Jervis Has a SHA-256 Hex String Padding Bug

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.7
-
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
C
H
U
7.5
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Related Resources

No items found.

References

https://github.com/samrocketman/jervis/security/advisories/GHSA-67rj-pjg6-pq59, https://nvd.nist.gov/vuln/detail/CVE-2025-68702, https://github.com/samrocketman/jervis/commit/c3981ff71de7b0f767dfe7b37a2372cb2a51974a, https://github.com/samrocketman/jervis, https://github.com/samrocketman/jervis/blob/157d2b63ffa5c4bb1d8ee2254950fd2231de2b05/src/main/groovy/net/gleske/jervis/tools/SecurityIO.groovy#L622-L626, http://github.com/samrocketman/jervis/commit/c3981ff71de7b0f767dfe7b37a2372cb2a51974a

Severity

7.5

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
7.5
EPSS Probability
0.00018%
EPSS Percentile
0.04438%
Introduced Version
2.0
Fix Available
2.2

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