CVE-2026-22018: Low severity Oracle Java SE vulnerability

Published Apr 21, 2026
·
Updated

Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE.

Other sources

Missing validation of ZIP64 content in a ZIP file can lead to out-of-bounds reads.

— Red Hat

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Libraries). 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 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 ability to cause a partial denial of service (partial DOS) of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. 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 3.7 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).

— 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
  6. Upgrade

    Upgrade Oracle Java SE (Libraries) to a version that resolves this vulnerability.

    Fixed in 8u481
  7. Upgrade

    Upgrade Oracle Java SE (Libraries) to a version that resolves this vulnerability.

    Fixed in 8u481-b50
  8. Upgrade

    Upgrade Oracle Java SE (Libraries) to a version that resolves this vulnerability.

    Fixed in 8u481-perf
  9. Upgrade

    Upgrade Oracle Java SE (Libraries) to a version that resolves this vulnerability.

    Fixed in 11.0.30
  10. Upgrade

    Upgrade Oracle Java SE (Libraries) to a version that resolves this vulnerability.

    Fixed in 17.0.18
  11. Upgrade

    Upgrade Oracle Java SE (Libraries) to a version that resolves this vulnerability.

    Fixed in 21.0.10
  12. Upgrade

    Upgrade Oracle Java SE (Libraries) to a version that resolves this vulnerability.

    Fixed in 25.0.2
  13. Upgrade

    Upgrade Oracle Java SE (Libraries) to a version that resolves this vulnerability.

    Fixed in 26
  14. Upgrade

    Upgrade Oracle GraalVM for JDK (Libraries) to a version that resolves this vulnerability.

    Fixed in 17.0.18
  15. Upgrade

    Upgrade Oracle GraalVM for JDK (Libraries) to a version that resolves this vulnerability.

    Fixed in 21.0.10
  16. Upgrade

    Upgrade Oracle GraalVM Enterprise Edition (Libraries) to a version that resolves this vulnerability.

    Fixed in 21.3.17
  17. Compensating control

    Ensure any Java Web Start applications or Java applets that load untrusted code (e.g., from the internet) and rely on the Java sandbox are not exposed to untrusted ZIP content that could trigger missing validation of ZIP64 content in the Java libraries.

Event History

Apr 21, 2026
Data Sourced
via Red Hat·10:06 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 Debian·05:16 PM
DescriptionAffected Software
Data Sourced
via Launchpad·05:17 PM
Description
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-2026-22018?

CVE-2026-22018 is rated as a high severity vulnerability affecting Oracle Java SE and Oracle GraalVM.

2

How do I fix CVE-2026-22018?

To fix CVE-2026-22018, update to the latest patched version of Oracle Java SE or Oracle GraalVM as per Oracle's security advisories.

3

What products are affected by CVE-2026-22018?

The affected products include Oracle Java SE versions 8u481, 11.0.30, 17.0.18, and others, as well as certain versions of Oracle GraalVM.

4

Can I use an older version of Oracle Java SE with CVE-2026-22018?

No, using older versions of Oracle Java SE that are vulnerable to CVE-2026-22018 is not recommended due to security risks.

5

Is CVE-2026-22018 being actively exploited?

As of now, there is no public information confirming active exploitation of CVE-2026-22018, but it is advisable to patch as soon as possible.

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