CVE-2026-59644: MLS hash-ratchet honours arbitrary 32-bit generation counter from sender

Published Aug 3, 2026
·
Updated

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

Affected Software

1 affected component
Bouncy Castle Java<1.85

Event History

Aug 3, 2026
CVE Published
via MITRE·12:50 AM
Data Sourced
via MITRE·12:50 AM
DescriptionWeakness
Data Sourced
via NVD·01:16 AM
DescriptionSeverityWeakness
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2026-59644?

CVE-2026-59644 has a risk score of 47, indicating a significant level of impact.

2

What software is affected by CVE-2026-59644?

Bouncy Castle for Java versions prior to 1.85 are affected by CVE-2026-59644.

3

How do I fix CVE-2026-59644?

To fix CVE-2026-59644, upgrade Bouncy Castle for Java to version 1.85 or later.

4

What vulnerability does CVE-2026-59644 address?

CVE-2026-59644 addresses an issue where MLS hash-ratchet honors an arbitrary 32-bit generation counter from the sender.

5

When was CVE-2026-59644 published?

CVE-2026-59644 was published on August 3, 2026.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203