bcgit/bc-java · Security
Bouncy Castle: Name Constraints bypass via trailing dot in rfc822Name and URI
- GHSA ID
- GHSA-9pwp-9qqc-pr26
- CVE ID
- CVE-2026-8763
- Severity
- critical
- Published
- Updated
- CVSS
- 9.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- CVSS v3
- 9.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- CVSS v4
- 9.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/U:Amber
Description
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).
CWEs
- CWE-295 · Improper Certificate Validation
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-8763 ↗
- https://github.com/bcgit/bc-java/commit/2c28b253a44681fbbc562561eab6ad383d2ae558 ↗
- https://github.com/bcgit/bc-java/wiki/CVE-2026-8763 ↗
- https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%908763 ↗
- https://github.com/bcgit/bc-java/releases/tag/r1rv85v2 ↗
- https://github.com/advisories/GHSA-9pwp-9qqc-pr26 ↗