CVE-2026-12804 PUBLISHED

lemonldap-ng SAML Common Domain Cookie Endpoint CDC.pm redirect

Assigner: VulDB
Reserved: 21.06.2026 Published: 21.06.2026 Updated: 22.06.2026

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.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
CVSS Score: 5.3

Product Status

Vendor n/a
Product lemonldap-ng
Versions
  • Version 2.0 is affected
  • Version 2.1 is affected
  • Version 2.2 is affected
  • Version 2.3 is affected
  • Version 2.4 is affected
  • Version 2.5 is affected
  • Version 2.6 is affected
  • Version 2.7 is affected
  • Version 2.8 is affected
  • Version 2.9 is affected
  • Version 2.10 is affected
  • Version 2.11 is affected
  • Version 2.12 is affected
  • Version 2.13 is affected
  • Version 2.14 is affected
  • Version 2.15 is affected
  • Version 2.16 is affected
  • Version 2.17 is affected
  • Version 2.18 is affected
  • Version 2.19 is affected
  • Version 2.20 is affected
  • Version 2.21 is affected
  • Version 2.22 is affected
  • Version 2.23.0 is affected

Credits

  • geochen (VulDB User) reporter
  • VulDB CNA Team coordinator

References

Problem Types

  • Open Redirect CWE