CVE-2026-59650

Description

In Bouncy Castle for Java before 1.85, MTI/A0 DH agreement exponentiates unvalidated peer value. This issue also affects Bouncy Castle for Java LTS before 2.73.12.

References

• https://github.com/bcgit/bc-java/commit/daeaae9d7075d04f40812e68671ebf4c777b5148
• https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9059650