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TI-2026-10942 Aliases CVE-2026-12804GHSA-g4v8-q2mr-m933

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

Priority MEDIUM 57CWE-601Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Spoofing
Confidentiality · integrity · availability
None · Low · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-601.

Summary

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."

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00446 38th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—lemonldap-ng2.0; 2.1; 2.2; 2.3; 2.4; 2.5; 2.6; 2.7; 2.8; 2.9; 2.10; 2.11; 2.12; 2.13; 2.14; 2.15; 2.16; 2.17; 2.18; 2.19; 2.20; 2.21; 2.22; 2.23.0—No fix listedCNA
  • lemonldap-ng Vendor— Affected 2.0; 2.1; 2.2; 2.3; 2.4; 2.5; 2.6; 2.7; 2.8; 2.9; 2.10; 2.11; 2.12; 2.13; 2.14; 2.15; 2.16; 2.17; 2.18; 2.19; 2.20; 2.21; 2.22; 2.23.0 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:lemonldap-ng:lemonldap-ng:*:*:*:*:*:*:*:*——lemonldap-ng
  • cpe:2.3:a:lemonldap-ng:lemonldap-ng:*:*:*:*:*:*:*:* Versions — — ·lemonldap-ng

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-12804
  2. 2026-10-03 Alias added: GHSA-g4v8-q2mr-m933

References

Patch 1

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences