Severity: important
CVSS 3.1: 5.9 (medium) CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 4.0: 8.2 (high)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Affected versions:
- Apache Commons BCEL before 6.13.0
- Apache Commons BCEL before 14890bf2b9014df25f9b4de86f29b5e917e5656b
Description:
Symbolic name not mapping to correct object vulnerability in Apache Commons.
BCEL caches attacker-controlled classes under their self-declared names without
validating the requested name, allowing subsequent lookups and name-keyed
verification results to refer to a different class.
This issue affects Apache Commons: before 6.13.0.
Users are recommended to upgrade to version 6.13.0, which fixes the issue.
Credit:
The Apache Software Foundation (finder)
Claude Security (tool)
References:
https://github.com/apache/commons-bcel/commit/14890bf2b9014df25f9b4de86f29b5e917e5656b.patch
https://commons.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-94114
