High severity7.5OSV Advisory· Published Aug 3, 2026· Updated Aug 28, 2026
CVE-2026-59646
CVE-2026-59646
Description
In Bouncy Castle for Java before 1.85, DTLS handshake reassembler allocates buffer from unchecked 24-bit length. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bctls-fips 1.0.24 (1.0.X series), 2.0.24 (2.0.X series) and 2.1.24 (2.1.X series).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
6- Range: r2rv73dot11, r2rv73dot10, r2rv73dot9, …
- osv-coords2 versionspkg:rpm/opensuse/bouncycastle&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/bouncycastle&distro=openSUSE%20Leap%2016.0
< 1.85-1.1+ 1 more
- (no CPE)range: < 1.85-1.1
- (no CPE)range: < 1.85-160000.1.1
- Range: <1.85, <2.73.12, <1.0.24, <2.0.24, <2.1.24
- Range: <1.85
- Range: <2.73.12
Patches
Vulnerability mechanics
References
2News mentions
2- Bouncy Castle for Java: 25 Vulnerabilities Disclosed Together on August 3, 2026Vypr Intelligence · Aug 3, 2026
- Bouncy Castle for Java: 25 Vulnerabilities Disclosed in Single Batch on August 3, 2026Vypr Intelligence · Aug 3, 2026