CVE-2026-59638

CVE-2026-59638CVE-2026-59638

Description

In Bouncy Castle for Java before 1.85, JSSE hostname verifier CN-fallback enabled by default despite documented opt-in. 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).

Scoring

Last modified2026-08-03
Sourced from NVD. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.