Oracle Java SE: Schwachstelle ermöglicht Offenlegung von Informationen
WID-SEC-2026-4154 · first 26.10.2026 · updated 28.10.2026 · CVSS 9,1
What it is about
Die Java Platform, Standard Edition (SE) ist eine Sammlung von Java-APIs (JDK) und der Java Laufzeit Umgebung (JRE). Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Oracle Java SE ausnutzen, um Informationen offenzulegen oder Daten zu manipulieren.
Under what conditions?
Over the network and without logging in. This is the most dangerous combination: attackers can scan reachable devices automatically.
What can happen in the worst case
An attacker could use the vulnerability to
- Informationen offenzulegen oder Daten zu manipulieren
Am I affected?
Affected according to the BSI:
- Red Hat Enterprise Linux
- HCL Domino
- Open Source OpenJDK
- Oracle Java SE 25.0.5.0.2
- Oracle Java SE 17.0.21.0.2
- Oracle Java SE 8u511-perf-b32
- Oracle Java SE 21.0.13.0.2
- Oracle Java SE 8u511-b32
- Oracle Java SE 27.0.1.0.2
- Oracle Java SE 11.0.33.0.2
- Oracle Java SE Oracle GraalVM for JDK 17.0.21.0.2
- Oracle Java SE Oracle GraalVM for JDK 21.0.13.0.2
and 3 more
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Amazon Corretto 8.512.09.1
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- Oracle Security Alert vom 2026-10-25 www.oracle.com
- GitHub Security Advisory GHSA-255q-pwv4-fjj7 vom 2026-10-25 github.com
- OpenJDK Vulnerability Advisory vom 2026-10-24 openjdk.org
- Change Log for Amazon Corretto 11 vom 2026-10-27 github.com
- Change Log for Amazon Corretto 8 vom 2026-10-27 github.com
- HCL Security Bulletin vom 2026-10-28 support.hcl-software.com
- Red Hat Security Advisory RHSA-2026:88352 vom 2026-10-28 access.redhat.com
CVE: CVE-2026-114820
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.