SEPTEMBER 20, 2026
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Case File

CVE-2026-59644

HIGH · CVSS 7.5 EPSS 0.31% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-03 · Last synced 2026-09-02

CyberRota Analysis

AI-Generated

Bouncy Castle for Java versions prior to 1.85 are vulnerable due to the MLS hash-ratchet improperly honoring arbitrary 32-bit generation counters from the sender, which could lead to potential cryptographic weaknesses and compromise the integrity of secure communications. Organizations utilizing Bouncy Castle for cryptographic operations should prioritize this vulnerability to ensure the security of their applications and data.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-59644
Severity
HIGH
CVSS
7.5
EPSS
0.31%
Java

Original NVD Description

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

Related CVEs

Other vulnerabilities affecting the same vendor(s)