CVE-2026-91453

NameCVE-2026-91453
DescriptionVulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Lightweight HTTP Server). Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS 3.1 Base Score 5.3 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N).
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-4861-1, DSA-6588-1, DSA-6591-1
Debian Bugs1151673, 1152388

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openjdk-11 (PTS)sid11.0.33+9-1fixed
openjdk-17 (PTS)bookworm17.0.19+10-1~deb12u2vulnerable
bookworm (security)17.0.21+9-1~deb12u1fixed
sid17.0.21.0.3+1-1fixed
openjdk-21 (PTS)trixie21.0.12.1+1-1~deb13u1vulnerable
trixie (security)21.0.13+9-1~deb13u2fixed
forky, sid21.0.13.0.3+1-1fixed
openjdk-25 (PTS)trixie25.0.3+9-2~deb13u1vulnerable
trixie (security)25.0.5+8-1~deb13u1fixed
forky25.0.5+8-1fixed
sid25.0.5.0.3+1-1fixed
openjdk-27 (PTS)forky27~34ea-1vulnerable
sid27.0.1.0.3+1-1fixed
openjdk-8 (PTS)sid8u512-ga-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
openjdk-11source(unstable)11.0.33+9-11152388
openjdk-17sourcebookworm17.0.21+9-1~deb12u1DLA-4861-1
openjdk-17source(unstable)17.0.21+9-1
openjdk-21sourcetrixie21.0.13+9-1~deb13u2DSA-6588-1
openjdk-21source(unstable)21.0.13+9-1
openjdk-25sourcetrixie25.0.5+8-1~deb13u1DSA-6591-1
openjdk-25source(unstable)25.0.5+8-1
openjdk-27source(unstable)27.0.1+9-1
openjdk-8source(unstable)8u512-ga-11151673

Notes

https://openjdk.org/groups/vulnerability/advisories/2026-10-20

Search for package or bug name: Reporting problems