| Name | CVE-2026-12804 |
| Description | 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." |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| lemonldap-ng (PTS) | bullseye | 2.0.11+ds-4+deb11u5 | vulnerable |
| bullseye (security) | 2.0.11+ds-4+deb11u8 | vulnerable | |
| bookworm | 2.16.1+ds-deb12u8 | vulnerable | |
| bookworm (security) | 2.16.1+ds-deb12u6 | vulnerable | |
| trixie | 2.21.2+ds-1+deb13u2 | vulnerable | |
| forky, sid | 2.23.2+ds-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| lemonldap-ng | source | (unstable) | 2.23.1+ds-1 |
[trixie] - lemonldap-ng <no-dsa> (Minor issue)
[bookworm] - lemonldap-ng <postponed> (Minor issue; open redirect in rarely-used SAML CDC endpoint; fix in 2.23.1)
[bullseye] - lemonldap-ng <postponed> (Minor issue; open redirect in rarely-used SAML CDC endpoint; fix in 2.23.1)
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/work_items/3619
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/merge_requests/979
Fixed by: https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/commit/478bed8e58f0457235e0916e3f73a85a2f19471f (v2.23.1)