CVE-2026-91373
Vulnerability in Oracle Java SE (component: JSSE). 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; Oracle GraalVM for JDK:
02 Description
Vulnerability in Oracle Java SE (component: JSSE). 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; Oracle GraalVM for JDK:
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.44% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 38.0% of scored records. A rank, not a probability.
- NVD base score
- 5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- NVD analysis status
- Awaiting Analysis. NVD last modified this record on 2026-10-22.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-10-20 21:25Z8 DAYS AGO
- Last updated
- 2026-10-22 18:50Z6 DAYS AGO
- Reserved
- 2026-09-14
- Assigning CNA
- oracle
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.3)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- Data version
- 5.2
- Document digest
- 8c6b72a1b3e095687bf7b718ba7e95457ffdb97bfaead0ca9d38cea65d9f3559
05 Affected products
06 References
- www.oracle.comOracle Advisoryhttps://www.oracle.com/security-alerts/cpuoct2026.html
07 Fixed in
AlmaLinux 8
- java-17-openjdk Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-demo Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-demo-fastdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-demo-slowdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-devel Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-devel-fastdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-devel-slowdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-fastdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-headless Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-headless-fastdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-headless-slowdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-javadoc Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-javadoc-zip Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-jmods Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-jmods-fastdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-jmods-slowdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-slowdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-src Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-src-fastdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-src-slowdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-static-libs Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-static-libs-fastdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-static-libs-slowdebug Fixed in 1:17.0.21.0.9-2.1.el8
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- java-17-openjdk Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-demo Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-demo-fastdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-demo-slowdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-devel Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-devel-fastdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-devel-slowdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-fastdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-headless Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-headless-fastdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-headless-slowdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-javadoc Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-javadoc-zip Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-jmods Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-jmods-fastdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-jmods-slowdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-slowdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-src Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-src-fastdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-src-slowdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-static-libs Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-static-libs-fastdebug Fixed in 1:17.0.21.0.9-2.1.el8
- java-17-openjdk-static-libs-slowdebug Fixed in 1:17.0.21.0.9-2.1.el8
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- openjdk-17 Fixed in 17.0.21+9-1~deb12u1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- openjdk-21 Fixed in 21.0.13+9-1~deb13u2
- openjdk-25 Fixed in 25.0.5+8-1~deb13u1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- openjdk-21 Fixed in 21.0.13+9-1
- openjdk-25 Fixed in 25.0.5+8-1
- openjdk-27 No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- openjdk-9 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- openjdk-13 No fix yet
- openjdk-16 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- openjdk-17 No fix yet
- openjdk-18 No fix yet
- openjdk-21 No fix yet
- openjdk-25 No fix yet
- openjdk-8 No fix yet
- openjdk-lts No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- openjdk-17 No fix yet
- openjdk-21 No fix yet
- openjdk-25 No fix yet
- openjdk-8 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- openjdk-17 No fix yet
- openjdk-17-crac No fix yet
- openjdk-21 No fix yet
- openjdk-21-crac No fix yet
- openjdk-25 No fix yet
- openjdk-8 No fix yet
- openjdk-lts No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.10
- openjdk-17 No fix yet
- openjdk-17-crac No fix yet
- openjdk-21 No fix yet
- openjdk-21-crac No fix yet
- openjdk-25 No fix yet
- openjdk-27 No fix yet
- openjdk-8 No fix yet
- openjdk-lts No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- openjdk-8 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- openjdk-17 No fix yet
- openjdk-8 No fix yet
- openjdk-lts No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 20.04 LTS
- openjdk-17 No fix yet
- openjdk-21 No fix yet
- openjdk-8 No fix yet
- openjdk-lts No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 24.04 LTS
- openjdk-lts No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.