# CVE-2026-95811: lemonldap-ng: Lemonldap::NG::Handler versions from 2.0.0 before 2.16.10, from 2.17.0 before 2.21.6, from 2.22.0 before 2.23.4 for P...

CVE-2026-95811 is fixed in 11 products on 1 platform, first by FEDORA-2026-33DCAB55B4, released September 25, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-95811
- Priority: Routine
- CVSS: 6.5 (medium)
- EPSS: 0.0055
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 25, 2026

## Description

Lemonldap::NG::Handler versions from 2.0.0 before 2.16.10, from 2.17.0 before 2.21.6, from 2.22.0 before 2.23.4 for Perl allow an equivalent spelling of a path to bypass the locationRules that restrict it.  The handler matches each vhost's locationRules regular expressions against REQUEST_URI, the raw request line, while the web server routes on the path it has already percent-decoded and normalized. A request that percent-encodes a character of the path, inserts dot segments, or doubles a slash therefore reaches the protected resource under a URI that no rule regexp matches, and the vhost's default rule decides access. Deny rules, identity and group conditions, and unprotect and skip rules are bypassed alike.  Only a vhost whose default rule is more permissive than its other rules is affected. An authenticated user then reaches any URL a locationRules regexp was meant to restrict, but gains no more than that default rule already grants.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | lemonldap-ng Debian 12.15 (bookworm) | 2.16.1+ds-deb12u10 | [DEBIAN-CVE-2026-95811](https://patchblox.com/security/data/fix/linux/debian-cve-2026-95811.md) | Sep 26, 2026 |
| Linux | lemonldap-ng Debian 13.5 (trixie) | 2.21.2+ds-1+deb13u4 | [DEBIAN-CVE-2026-95811](https://patchblox.com/security/data/fix/linux/debian-cve-2026-95811.md) | Sep 26, 2026 |
| Linux | lemonldap-ng Debian 14 | 2.23.4+ds-1 | [DEBIAN-CVE-2026-95811](https://patchblox.com/security/data/fix/linux/debian-cve-2026-95811.md) | Sep 26, 2026 |
| Linux | lemonldap-ng Fedora 43 | 2.23.4-1.fc43 | [FEDORA-2026-33DCAB55B4](https://patchblox.com/security/data/fix/linux/fedora-2026-33dcab55b4.md) | Sep 25, 2026 |
| Linux | lemonldap-ng-common Fedora 43 | 2.23.4-1.fc43 | [FEDORA-2026-33DCAB55B4](https://patchblox.com/security/data/fix/linux/fedora-2026-33dcab55b4.md) | Sep 25, 2026 |
| Linux | lemonldap-ng-doc Fedora 43 | 2.23.4-1.fc43 | [FEDORA-2026-33DCAB55B4](https://patchblox.com/security/data/fix/linux/fedora-2026-33dcab55b4.md) | Sep 25, 2026 |
| Linux | lemonldap-ng-fastcgi-server Fedora 43 | 2.23.4-1.fc43 | [FEDORA-2026-33DCAB55B4](https://patchblox.com/security/data/fix/linux/fedora-2026-33dcab55b4.md) | Sep 25, 2026 |
| Linux | lemonldap-ng-handler Fedora 43 | 2.23.4-1.fc43 | [FEDORA-2026-33DCAB55B4](https://patchblox.com/security/data/fix/linux/fedora-2026-33dcab55b4.md) | Sep 25, 2026 |
| Linux | lemonldap-ng-manager Fedora 43 | 2.23.4-1.fc43 | [FEDORA-2026-33DCAB55B4](https://patchblox.com/security/data/fix/linux/fedora-2026-33dcab55b4.md) | Sep 25, 2026 |
| Linux | lemonldap-ng-portal Fedora 43 | 2.23.4-1.fc43 | [FEDORA-2026-33DCAB55B4](https://patchblox.com/security/data/fix/linux/fedora-2026-33dcab55b4.md) | Sep 25, 2026 |
| Linux | lemonldap-ng-selinux Fedora 43 | 2.23.4-1.fc43 | [FEDORA-2026-33DCAB55B4](https://patchblox.com/security/data/fix/linux/fedora-2026-33dcab55b4.md) | Sep 25, 2026 |
| Linux | lemonldap-ng-test Fedora 43 | 2.23.4-1.fc43 | [FEDORA-2026-33DCAB55B4](https://patchblox.com/security/data/fix/linux/fedora-2026-33dcab55b4.md) | Sep 25, 2026 |
| Linux | lemonldap-ng-uwsgi-app Fedora 43 | 2.23.4-1.fc43 | [FEDORA-2026-33DCAB55B4](https://patchblox.com/security/data/fix/linux/fedora-2026-33dcab55b4.md) | Sep 25, 2026 |
| Linux | perl-Lemonldap-NG-SSOaaS-Apache-Client Fedora 43 | 2.23.4-1.fc43 | [FEDORA-2026-33DCAB55B4](https://patchblox.com/security/data/fix/linux/fedora-2026-33dcab55b4.md) | Sep 25, 2026 |

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Data as of 2026-11-09T13:31:49Z 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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