Open Redirect Affecting lemonldap-ng package, versions <2.23.1+ds-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.26% (18th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-LEMONLDAPNG-17400947
  • published23 Jun 2026
  • disclosed21 Jun 2026

Introduced: 21 Jun 2026

CVE-2026-12804  (opens in a new tab)
CWE-601  (opens in a new tab)

How to fix?

Upgrade Debian:unstable lemonldap-ng to version 2.23.1+ds-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream lemonldap-ng package and not the lemonldap-ng package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

A vulnerability was detected in lemonldap-ng up to 2.23.0. Impacted is an unknown function in the library lemonldap-ng-portal/lib/Lemonldap/NG/Portal/CDC.pm of the component SAML Common Domain Cookie Endpoint. Performing a manipulation of the argument url results in open redirect. The attack is possible to be carried out remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS Base Scores

version 3.1