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CVE-2026-83374VulnerabilityPublished

Red Hat Security Advisory: OpenJDK 25.0.5 Security Update for Portable Linux Builds

Affects Red Hat OpenJDK 25.0.5Source GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2026-83374· Medium 5.9

Not known to be exploited · CVSS 5.9 Medium.

Data as of 29 Oct 2026, 17:23 UTC

CVSS 3.1 base score
5.9Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (oracle)CVSS 3.15.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 20 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Oracle CorporationOracle Java SEAffected
  • 8u503 – 27
7 affected builds
Fixed in–
Oracle CorporationOracle GraalVM for JDKAffected
  • =17.0.20.1
  • =21.0.12.1
Fixed in–
Oracle CorporationOracle GraalVM Enterprise EditionAffected
  • =21.3.19.1.1
Fixed in–
Mavencom.oracle.java/java-sepkg:maven/com.oracle.java/java-seOther threatsAffected
  • 8u503 – 27
8 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A security update to OpenJDK 25 (version 25.0.5) is available from Red Hat and should be applied to replace earlier versions 25.0.4 and 25.0.4.1. Users should ensure all previously released errata relevant to their systems are applied before updating. Detailed update instructions are provided by Red Hat in their advisory. Applying this update addresses all listed vulnerabilities and is the recommended remediation.

Description

Red Hat has released a critical security update for OpenJDK 25 (version 25.0.5) for portable Linux builds. This update replaces versions 25.0.4 and 25.0.4.1 and includes multiple security enhancements and bug fixes addressing a wide range of vulnerabilities across various components such as PKCS5 padding, TLS certificate handling, LDAP logins, HTTP client and server, XML processing, and certificate validation. Additionally, the update distrusts certain intermediate CA certificates due to security concerns. The advisory references numerous CVEs fixed in this release, indicating a comprehensive security improvement.

References

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