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VulnerabilityPublished Updated

CVE-2026-91333: Openjdk 8 · (Vulnerability in Oracle Java SE (component: Security)

Affects openjdk-8Source GCVE Database

0
Authoritative record:CVE-2026-91333· Low 3.7

Not known to be exploited · CVSS 3.7 Low.

Data as of 27 Oct 2026, 09:29 UTC

CVSS 3.1 base score
3.7Low
How severe the flaw is on the 0–10 CVSS scale.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/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. Weaponised: 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 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10openjdk-17pkg:deb/ubuntu/openjdk-17?arch=source&distro=stonkingOther threatsAffected
  • 17.0.18+8-1 – 17.0.21~6ea-1
6 affected builds
Fixed in–
Ubuntu 26.10openjdk-17-cracpkg:deb/ubuntu/openjdk-17-crac?arch=source&distro=stonkingOther threatsAffected
  • =17.0.18+8-0ubuntu1
  • =17.0.19+10-0ubuntu1
  • =17.0.20+8-0ubuntu1
Fixed in–
Ubuntu 26.10openjdk-21pkg:deb/ubuntu/openjdk-21?arch=source&distro=stonkingOther threatsAffected
  • 21.0.11+10-1 – 21.0.12~5ea-1
5 affected builds
Fixed in–
Ubuntu 26.10openjdk-21-cracpkg:deb/ubuntu/openjdk-21-crac?arch=source&distro=stonkingOther threatsAffected
  • =21.0.10+7-0ubuntu1
  • =21.0.11+10-0ubuntu1
  • =21.0.12+8-0ubuntu1
Fixed in–
Ubuntu 26.10openjdk-25pkg:deb/ubuntu/openjdk-25?arch=source&distro=stonkingOther threatsAffected
  • 25.0.3+9-2 – 25.0.4~4ea-1
5 affected builds
Fixed in–
Ubuntu 26.10openjdk-27pkg:deb/ubuntu/openjdk-27?arch=source&distro=stonkingOther threatsAffected
  • =27~19ea-1
  • =27~34ea-1
  • =27+35-1
Fixed in–

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

AI-suggested

Users should consult vendor advisories for remediation guidance. Given the low severity and lack of known exploits, immediate urgent action is not indicated.

Description

CVE-2026-91333 is a low-severity vulnerability in Oracle Java SE affecting OpenJDK 8 versions. It involves a security component flaw that does not impact confidentiality or availability but may cause limited integrity issues. The vulnerability requires network attack vector with high attack complexity and no privileges or user interaction. Multiple specific OpenJDK 8 update versions are affected.

References

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