# CVE-2026-105111: bcel: Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Commons...

CVE-2026-105111 is fixed in bcel on 1 platform, first by DEBIAN-CVE-2026-105111, released October 31, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-105111
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0025
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 6, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bcel Debian 14 | 6.13.0-1 | [DEBIAN-CVE-2026-105111](https://patchblox.com/security/data/fix/linux/debian-cve-2026-105111.md) | Oct 31, 2026 |
| Linux | bcel opensuse-leap 16.0 | 6.13.0-160000.1.1 | [OPENSUSE-SU-2026:22109-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-22109-1.md) | Nov 7, 2026 |
| Linux | bcel sles 16.0 | 6.13.0-160000.1.1 | [SUSE-SU-2026:24258-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-24258-1.md) | Nov 7, 2026 |

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Data as of 2026-11-09T07:25:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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