CVE-2026-91411: Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Orac

Routine

MEDIUM 6.5REMOTE

CVE-2026-91411 is a medium-severity flaw (CVSS 6.5) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JGSS). Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compro

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 85%)
CISA exploited list	No
Weakness	CWE-20
Published	2026-10-20
Last modified	2026-10-23

Publisher (CNA): Oracle

Timeline

2026-10-20 22:20 UTCPublished CVE record published
2026-10-23 20:17 UTCUpdated Record last modified

Exact fixes by distribution

Fedora 46 · clementine · FIXED · 1.4.2-1.fc46 · FEDORA-2026-3e748ef4d3 · source

sudo dnf upgrade --advisory=FEDORA-2026-3e748ef4d3

Debian 12 · openjdk-17 · NO FIX YET

Debian 13 · openjdk-21 · NO FIX YET

RHEL 10 · java-21-ibm-semeru-certified-jdk · NOT AFFECTED

RHEL 10 · java-21-openjdk · NOT AFFECTED

RHEL 10 · java-25-openjdk · NOT AFFECTED

RHEL 6 · java-1.6.0-openjdk · DEFERRED

RHEL 6 · java-1.7.0-openjdk · DEFERRED

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

References

← Back to latest CVEs