PatchTheCEVbouncycastle vulnerabilities
Recent CVEs affecting bouncycastle products. 3 tracked.
bouncycastle has 3 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 3. Most recent: 2026-08-03. Highest priority: CVE-2026-59644 (score 42/100).
- CVE-2026-59644 HIGH 7.5 UPGRADE In Bouncy Castle for Java before 1.85, MLS hash-ratchet honours arbitrary 32-bit generation counter from sende
- CVE-2026-12852 HIGH 7.5 UPGRADE In Bouncy Castle for Java before 1.85, MLS wire decoder allocates attacker-declared opaque length before bound
- CVE-2026-59652 MEDIUM 6.5 UPGRADE In Bouncy Castle for Java before 1.85, LDAP filter injection in legacy jdk1.4 LDAPStoreHelper.
FAQ
How do I fix bouncycastle vulnerabilities?
Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.
Is bouncycastle being exploited right now?
None of the tracked bouncycastle CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which bouncycastle CVE should I patch first?
CVE-2026-59644 currently ranks highest (42/100): In Bouncy Castle for Java before 1.85, MLS hash-ratchet honours arbitrary 32-bit generation counter from sende.