New Release: Bouncy Castle Java LTS 2.73.8

We are pleased to announce the availability of Bouncy Castle Java LTS 2.73.8, which is based on Bouncy Castle Java 1.81.

This release includes:

Bug fixes and improvements from BC Java 1.80 and BC Java 1.81, including support for the IETF encoding mechanisms for ML-KEM and ML-DSA private keys, and for ML-KEM and ML-KEM Hybrid in TLS. See the release notes.

Resolution of CVE-2025-9340, see:

NVD record: https://www.cvedetails.com/cve/CVE-2025-9340/
Bouncy Castle Wiki page: https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902025%E2%80%909340 

Resolution of CVE-2025-9341, see:

NVD record: https://www.cvedetails.com/cve/CVE-2025-9341/
Bouncy Castle Wiki page: https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902025%E2%80%909341 

Download