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EUVD-2026-328939

fkie_cve-2026-12804

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. Applying a patch is the recommended action to fix this issue. The vendor confirms, that "it has been fixed some days ago and will be available in 2.23.1. CDC is quite never used, so the impact is very low."

GHSA-g4v8-q2mr-m933

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.

UBUNTU-CVE-2026-12804

Affected: Ubuntu:16.04:LTS: lemonldap-ng, Ubuntu:18.04:LTS: lemonldap-ng, Ubuntu:20.04:LTS: lemonldap-ng, Ubuntu:22.04:LTS: lemonldap-ng, Ubuntu:24.04:LTS: lemonldap-ng, Ubuntu:25.10: lemonldap-ng, Ubuntu:26.04:LTS: lemonldap-ng