Su San Talks Tech

Oct 22, 2026 · Information Security

Critical Java JSSE Vulnerability CVE-2026-91403 (CVSS 9.1) Affects All Major JDK Versions

The article details CVE-2026-91403, a critical CVSS 9.1 vulnerability in Java's JSSE component affecting JDK 8, 11, 17, 21, 25, and 27, allowing remote unauthenticated attackers to compromise TLS communications, and provides upgrade and mitigation guidance.