lemonldap-ng: A vulnerability was detected in lemonldap-ng up to 2.23.0
CVE-2026-12804 is fixed in lemonldap-ng on 1 platform, first by DEBIAN-CVE-2026-12804, released June 21, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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."
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| lemonldap-ng · Debian 12.15 (bookworm) | 2.16.1+ds-deb12u9 | DEBIAN-CVE-2026-12804 | Jun 21, 2026 |
| lemonldap-ng · Debian 13.5 (trixie) | 2.21.2+ds-1+deb13u3 | DEBIAN-CVE-2026-12804 | Jun 21, 2026 |
| lemonldap-ng · Debian 14 | 2.23.1+ds-1 | DEBIAN-CVE-2026-12804 | Jun 21, 2026 |
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