CVE-2026-105111

Name	CVE-2026-105111
Description	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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1150227

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
bcel (PTS)	bookworm	6.5.0-2	vulnerable
	forky, sid, trixie	6.10.0-1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
bcel	source	(unstable)	(unfixed)			1150227

Notes

https://www.openwall.com/lists/oss-security/2026/10/07/13
Fixed by: https://github.com/apache/commons-bcel/commit/fb72c225cbc6ec3d94060ed6edb269f07428d504 (commons-bcel-6.13.0-RC1)
https://lists.apache.org/thread/co1wfk2lyrmpnfhn49o370pvfl978rw6