Oracle Java JSSE flaw CVE-2026-91403 scores CVSS 9.1, remotely exploitable without auth
cyb3rops · x · 2026-10-23
Security researcher cyb3rops highlights CVE-2026-91403 in the JSSE component of Oracle Java SE, Oracle GraalVM for JDK, and GraalVM Enterprise Edition, with a CVSS 3.1 base score of 9.1.
- Network vector, low attack complexity, no privileges or user interaction required, and remotely exploitable without authentication; confidentiality impact rated high.
- Multiple protocols affected; deployments using Java JSSE should patch via Oracle's Critical Patch Update as soon as possible.
Related event: Oracle Patches Critical Java TLS Flaw CVE-2026-91403 Rated 9.1(2 posts)→
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