CVE-2026-94114 Apache Commons BCEL: Class repositories cache class files under their self-declared names, enabling cache poisoning
Attackers can poison the class cache in Apache Commons BCEL by exploiting name mismatches, potentially leading to code execution or bypassing verification.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-94114?
CVE-2026-94114 is a high-severity vulnerability in Apache Commons BCEL, published on 6 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Symbolic name not mapping to correct class.
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 BCEL: before 6.13.0.
Users are recommended to upgrade to version 6.13.0, which fixes the issue.
Weakness: CWE-386
Which versions are affected by CVE-2026-94114?
How do I fix CVE-2026-94114?
Upgrade to a fixed version.
Is CVE-2026-94114 being exploited?
There is no known exploitation of CVE-2026-94114 in the wild and no public exploit code.
Sources
Also known as AZL-108017, DEBIAN-CVE-2026-94114, GHSA-2p8h-ph4h-rm2f, UBUNTU-CVE-2026-94114.