CVE-2026-8763
In Bouncy Castle for Java before 1.85, Name Constraints bypass via trailing dot in rfc822Name and URI. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series).
- Affected products
- Bouncy Castle For Java
- Fix
- Available
- CVSS 4.0
- 9.3 CRITICAL
- EPSS
- 0.3% (26th percentile)
- Weakness
- CWE-295
- NVD status
- Undergoing Analysis
- Published
- 2026-08-03
CVE-2026-8763 at NVD
No indexed exploits for CVE-2026-8763 yet
Our index is partial: it proves presence, never absence
No exploit for CVE-2026-8763 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.