VULNERABILITY INTELLIGENCE

CVE-2026-8763

CVSS score9.3 CRITICAL
EPSS probability0.43%
CISA KEVNot currently listed
Published2026-08-03
Last modified2026-09-02
CVSS vectorCVSS: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).

Weakness classification

  • CWE-295: Improper Certificate Validation

Primary references