Vulnerability Description
In Bouncy Castle for Java before 1.85, MLS wire decoder allocates attacker-declared opaque length before bounds check.
Related Weaknesses (CWE)
References
- https://github.com/bcgit/bc-java/commit/a747038bb5bbd5e29fb2b7607ab38af1fd8d1790
- https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9012852
FAQ
What is CVE-2026-12852?
CVE-2026-12852 is a documented vulnerability. In Bouncy Castle for Java before 1.85, MLS wire decoder allocates attacker-declared opaque length before bounds check.
How severe is CVE-2026-12852?
CVSS scoring is not yet available for CVE-2026-12852. Check NVD for updates.
Is there a patch for CVE-2026-12852?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.