Medium severity · published Oct 6, 2026
CVE-2026-94114
Apache Commons BCEL: Class repositories cache class files under their self-declared names, enabling cache poisoning
5.9
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
Apache Commons BCEL · Apache Software Foundation
before 6.13.0; before 14890bf2b9014df25f9b4de86f29b5e917e5656b · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-94114
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-94114
patch
https://github.com/apache/commons-bcel/commit/14890bf2b9014df25f9b4de86f29b5e917e5656b.patch
vendor-advisory
https://lists.apache.org/thread.html/co1wfk2lyrmpnfhn49o370pvfl978rw6
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