# CVE-2026-85630: libhtml-formhandler-perl: HTML::FormHandler versions before 0.410002 for Perl render field attributes into HTML without escaping using the proc...

CVE-2026-85630 is fixed in 2 products on 1 platform, first by FEDORA-2026-167A356523, released September 13, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-85630
- Priority: Routine
- CVSS: 6.1 (medium)
- EPSS: 0.0025
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 8, 2026

## Description

HTML::FormHandler versions before 0.410002 for Perl render field attributes into HTML without escaping using the process_attrs method.  Any application with fields or field labels where some attributes are built from data rather than literals allows attacker-influenced text in an attribute value that can override the field attributes or embed JavaScript in rendered pages.  For example, the RadioGroup widget uses the process_attrs method via the render_option and wrap_radio methods.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libhtml-formhandler-perl Debian 14 | 0.410002-1 | [DEBIAN-CVE-2026-85630](https://patchblox.com/security/data/fix/linux/debian-cve-2026-85630.md) | Sep 17, 2026 |
| Linux | perl-HTML-FormHandler Fedora 43 | 0.410002-1.fc43 | [FEDORA-2026-167A356523](https://patchblox.com/security/data/fix/linux/fedora-2026-167a356523.md) | Sep 13, 2026 |

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Data as of 2026-11-08T13:06:02Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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