# CVE-2026-93709: libdancer2-perl: Dancer2 versions before 2.2.0 for Perl serve a layout as a page when an equivalent spelling of its path misses the gu...

CVE-2026-93709 is fixed in libdancer2-perl on 1 platform by DEBIAN-CVE-2026-93709 (version 2.2.2-1), released October 4, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-93709
- Priority: Routine
- CVSS: 5.3 (medium)
- EPSS: 0.0045
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 22, 2026

## Description

Dancer2 versions before 2.2.0 for Perl serve a layout as a page when an equivalent spelling of its path misses the guard in the AutoPage handler.  The handler compares the request path against the layout directory name as text, while the lookup that follows canonicalises it. A doubled slash, a dot segment, a percent-encoded slash, or a different capitalisation on a case-insensitive filesystem therefore misses the guard.  The handler is off by default, enabled with auto_page. The layout wrapping every page is already public, so this discloses one of the application's other layouts.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libdancer2-perl Debian 14 | 2.2.2-1 | [DEBIAN-CVE-2026-93709](https://patchblox.com/security/data/fix/linux/debian-cve-2026-93709.md) | Oct 4, 2026 |

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Data as of 2026-11-08T06:59:42Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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