CVE-2026-59638 (CRITICAL, CVSS 9.3) in BC-JAVA: Improper cert validation due to default CN-fallback can expose TLS connections to MITM. Affects <1.85, LTS <2.73.12. Patch status unknown — monitor vendor & consider disabling fallback. https://radar.offseq.com/threat/cve-2026-59638-cwe-297-improper-validation-of-certificate-with-host-mismatch-in-legion-of-the-bouncy-aa319f6f20b27a8a #OffSeq #CVE202659638 #infosec