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."

References

https://vuldb.com/vuln/372598/cti

https://vuldb.com/vuln/372598

https://vuldb.com/submit/836105

https://vuldb.com/cve/CVE-2026-12804

https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/work_items/3619

https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/merge_requests/979

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS