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VulnerabilityPublished Updated

CVE-2026-105111: Openjdk 8 · Improper neutralization of input during web page generation ('cross-site scripting')

Affects openjdk-8Source GCVE Database

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Authoritative record:CVE-2026-105111· Medium 4.7

Not known to be exploited · CVSS 4.7 Medium · fixed in 6.13.0 : update openjdk-8 when convenient.

Data as of 9 Nov 2026, 06:52 UTC

CVSS 3.1 base score
4.7Medium
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 6.13.0
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 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 8 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10bcelpkg:deb/ubuntu/bcel?arch=source&distro=stonkingOther threatsAffected
  • =6.12.0-0ubuntu1
Fixed 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 – 25.0.5.0.3+1-1~26.10.1
6 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

Users should upgrade Apache Commons BCEL to version 6.13.0 or later to remediate this vulnerability. The affected OpenJDK 8 versions include vulnerable BCEL versions and should be updated accordingly. No other mitigations are specified.

Description

A stored cross-site scripting (XSS) vulnerability exists in Apache Commons BCEL before version 6.13.0, affecting OpenJDK 8 versions listed. The issue arises when Class2HTML generates web pages from potentially attacker-controlled class files, writing unescaped strings into HTML. This vulnerability allows attackers to inject malicious scripts into generated reports. The vulnerability is fixed in Apache Commons BCEL 6.13.0.

References

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