Vulnerability record · CVE-2026-105111 · published 6 October 2026

CVE-2026-105111: Cross-site scripting vulnerability

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Commons BCEL. This only happens when you're using Class2HTML to generate webpages for possibly-attacker-controlled class files, where Class2HTML emitters write attacker class-file strings into HTML unescaped (stored XSS in reports). This issue affects Apache Commons BCEL: before 6.13.0. Users are recommended to upgrade to version 6.13.0, which fixes the issue.

2.3 CVSS 4.0 Low EPSS 0.25% · top 84.7% CWE-79 · Cross-site scripting Awaiting Analysis

2.3CVSS 4.0 base score

0.25%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

3References

7 Oct 2026Last modified by NVD

Description

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

Link	Tags
https://github.com/apache/commons-bcel/commit/fb72c225cbc6ec3d94060ed6edb269f07428d504.patch
https://lists.apache.org/thread.html/co1wfk2lyrmpnfhn49o370pvfl978rw6
http://www.openwall.com/lists/oss-security/2026/10/07/13

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Source: NIST National Vulnerability Database (record CVE-2026-105111), CISA KEV, FIRST EPSS (scores of 2026-10-10). This page is refreshed as NVD updates the record.