CVE-2026-34268: Infoleak

Published Apr 21, 2026
·
Updated

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

31 affected componentsFixes available
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, =21.0.10
Oracle GraalVM Enterprise Edition=21.3.17
Oracle JRE=1.8.0-update481
Oracle JRE=1.8.0-update481
Oracle JRE=1.8.0-update481_b50
Oracle JRE=11.0.30
Oracle JRE=17.0.18
Oracle JRE=21.0.10
Oracle JRE=25.0.2
Oracle JRE=26
Oracle JDK=1.8.0-update481
Oracle JDK=1.8.0-update481
Oracle JDK=1.8.0-update481_b50
Oracle JDK=11.0.30
Oracle JDK=17.0.18
Oracle JDK=21.0.10
Oracle JDK=25.0.2
Oracle JDK=26
Oracle GraalVM=21.3.17
Oracle GraalVM for JDK=17.0.18
Oracle GraalVM for JDK=21.0.10
debian/openjdk-11<=11.0.24+8-2~deb11u1
11.0.31+11-1~deb11u111.0.31+11-1
debian/openjdk-17<=17.0.12+7-2~deb11u1
17.0.19+10-1~deb11u117.0.19+10-1~deb12u217.0.19+10-1
debian/openjdk-21
21.0.11+10-1~deb13u221.0.11+10-1
debian/openjdk-25
25.0.3+9-2~deb13u125.0.3+9-2
debian/openjdk-8
8u492-ga-1
IBM Verify Identity Access<=11.0 - 11.0.2
IBM Security Verify Access<=10.0 - 10.0.9.1
IBM Verify Identity Access Container<=11.0 - 11.0.2
IBM Security Verify Access Container<=10.0 - 10.0.9.1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/openjdk-11 to a version that resolves this vulnerability.

    Fixed in 11.0.31+11-1~deb11u1Fixed in 11.0.31+11-1
  2. Upgrade

    Upgrade debian/openjdk-17 to 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
  3. Upgrade

    Upgrade debian/openjdk-21 to a version that resolves this vulnerability.

    Fixed in 21.0.11+10-1~deb13u2Fixed in 21.0.11+10-1
  4. Upgrade

    Upgrade debian/openjdk-25 to a version that resolves this vulnerability.

    Fixed in 25.0.3+9-2~deb13u1Fixed in 25.0.3+9-2
  5. Upgrade

    Upgrade debian/openjdk-8 to a version that resolves this vulnerability.

    Fixed in 8u492-ga-1

Event History

Apr 21, 2026
Data Sourced
via Red Hat·10:07 AM
DescriptionSeverityAffected Software
CVE Published
via MITRE·08:35 PM
Data Sourced
via MITRE·08:35 PM
DescriptionSeverity
Data Sourced
via NVD·09:16 PM
DescriptionSeverityWeaknessAffected Software
May 28, 2026
Data Sourced
via Launchpad·05:17 PM
Description
Data Sourced
via Debian·05:17 PM
DescriptionAffected Software
Jun 2, 2026
Data Sourced
via Ubuntu·05:21 PM
RemedyDescriptionSeverityAffected Software
Jul 8, 2026
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

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.

2

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.

3

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.

4

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.

5

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.

Contact

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