CVE-2026-12804
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk18th percentile — higher than 18% of all known CVEs
Summary
A vulnerability was detected in lemonldap-ng up to version 2.23.0, affecting an unknown function in the library lemonldap-ng-portal/lib/Lemonldap/NG/Portal/CDC.pm. Manipulating the argument url results in an open redirect, which can be exploited remotely.
Risk Assessment
An attacker could exploit this vulnerability to carry out a remote attack; however, the impact is considered low as the CDC component is rarely used.
Recommendation
It is recommended to apply the patch that has already been released in version 2.23.1 to fix this issue.
Original NVD description (English source)
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."