CVE-2026-34268: Infoleak
Difficult to exploit vulnerability allows unauthenticated attacker with logon to the infrastructure where Java SE executes to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Java SE accessible data.
Other sources
Under certain circumstances, multiple passwords can generate the same crypto keys when using DES PBKDF.
— Red Hat
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Security). Supported versions that are affected are Oracle Java SE: 8u481, 8u481-b50, 8u481-perf, 11.0.30, 17.0.18, 21.0.10, 25.0.2, 26; Oracle GraalVM for JDK: 17.0.18 and 21.0.10; Oracle GraalVM Enterprise Edition: 21.3.17. Difficult to exploit vulnerability allows unauthenticated attacker with logon to the infrastructure where Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition executes to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. CVSS 3.1 Base Score 2.9 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).
— NVD
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/openjdk-11to a version that resolves this vulnerability.Fixed in 11.0.31+11-1~deb11u1Fixed in 11.0.31+11-1 - Upgrade
Upgrade
debian/openjdk-17to a version that resolves this vulnerability.Fixed in 17.0.19+10-1~deb11u1Fixed in 17.0.19+10-1~deb12u2Fixed in 17.0.19+10-1 - Upgrade
Upgrade
debian/openjdk-21to a version that resolves this vulnerability.Fixed in 21.0.11+10-1~deb13u2Fixed in 21.0.11+10-1 - Upgrade
Upgrade
debian/openjdk-25to a version that resolves this vulnerability.Fixed in 25.0.3+9-2~deb13u1Fixed in 25.0.3+9-2 - Upgrade
Upgrade
debian/openjdk-8to a version that resolves this vulnerability.Fixed in 8u492-ga-1
Event History
Frequently Asked Questions
What is the severity of CVE-2026-34268?
CVE-2026-34268 has a critical severity rating due to its potential impact on the security of affected systems.
How do I fix CVE-2026-34268?
To fix CVE-2026-34268, update to the latest supported version of Oracle Java SE or Oracle GraalVM as recommended by Oracle.
What systems are affected by CVE-2026-34268?
CVE-2026-34268 affects specific versions of Oracle Java SE and Oracle GraalVM including versions 8u481, 11.0.30, and others listed in the vulnerability announcement.
What types of attacks can exploit CVE-2026-34268?
CVE-2026-34268 can be exploited through various attacks that may compromise the integrity and confidentiality of systems utilizing affected versions.
Is there a workaround for CVE-2026-34268?
There are no specified workarounds for CVE-2026-34268, hence updating to secure versions is the recommended approach.