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CVE-2026-83374VulnerabilityPublished

Red Hat Security Advisory: OpenJDK 11.0.33 ELS Security Update For Portable Linux Builds

Affects Red HatSource GCVE Database

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Authoritative record:CVE-2026-83374· Medium 5.9

Not known to be exploited · CVSS 5.9 Medium.

Data as of 6 Nov 2026, 11:23 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
EPSS
0.2% chance of exploitation in 30 days – higher than 21% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
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 6 Nov 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

Red Hat has released OpenJDK 11.0.33 ELS as a replacement for version 11.0.32.1, which includes fixes for the listed vulnerabilities. Users should apply this update promptly to ensure their systems are protected. Before applying this update, ensure all previously released relevant errata have been applied. Detailed update instructions are available in the Red Hat advisory. No additional mitigation steps beyond applying the update are indicated.

Description

Red Hat has released a critical security update for OpenJDK 11.0.33 Extended Lifecycle Support (ELS) portable Linux builds. This update replaces version 11.0.32.1 and includes numerous security fixes addressing multiple vulnerabilities across various components such as TLS, HTTP client/server, Kerberos, image processing, and certificate handling. The update also distrusts certain intermediate CA certificates due to security concerns. The advisory references multiple CVEs fixed in this release, reflecting a broad effort to enhance security and stability.

References

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