CVE-2026-59644

UNKNOWN 0.0

MLS hash-ratchet honours arbitrary 32-bit generation counter from sender

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

In Bouncy Castle for Java before 1.85, MLS hash-ratchet honours arbitrary 32-bit generation counter from sender.

CWE	CWE-834
Vendor	legion of the bouncy castle inc.
Product	bc-java
Published	Aug 3, 2026

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Affected Versions

Legion of the Bouncy Castle Inc. / BC-JAVA

1.73 < 1.85

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/bcgit/bc-java/wiki/CVE-2026-59644 github.com: https://github.com/bcgit/bc-java/commit/610d8757d855afe197df0de6d831cb75c81e3b9f

Credits

🔍 Alex Gaynor in collaboration with Claude and Anthropic Research