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CVE Vulnerability Details :
CVE-2026-12804
PUBLISHED
More InfoOfficial Page
Assigner-VulDB
Assigner Org ID-1af790b2-7ee1-4545-860a-a788eba489b5
View Known Exploited Vulnerability (KEV) details
Published At-21 Jun, 2026 | 18:30
Updated At-22 Jun, 2026 | 15:52
Rejected At-
▼CVE Numbering Authority (CNA)
lemonldap-ng SAML Common Domain Cookie Endpoint CDC.pm redirect

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."

Affected Products
Vendor
n/a
Product
lemonldap-ng
CPEs
  • cpe:2.3:a:lemonldap-ng:lemonldap-ng:*:*:*:*:*:*:*:*
Modules
  • SAML Common Domain Cookie Endpoint
Versions
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
Problem Types
TypeCWE IDDescription
CWECWE-601Open Redirect
Type: CWE
CWE ID: CWE-601
Description: Open Redirect
Metrics
VersionBase scoreBase severityVector
4.05.3MEDIUM
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
3.14.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C
3.04.3MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C
2.05.0N/A
AV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:OF/RC:C
Version: 4.0
Base score: 5.3
Base severity: MEDIUM
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
Version: 3.1
Base score: 4.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C
Version: 3.0
Base score: 4.3
Base severity: MEDIUM
Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C
Version: 2.0
Base score: 5.0
Base severity: N/A
Vector:
AV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:OF/RC:C
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
reporter
geochen (VulDB User)
coordinator
VulDB CNA Team
Timeline
EventDate
Advisory disclosed2026-06-21 00:00:00
VulDB entry created2026-06-21 02:00:00
VulDB entry last update2026-06-22 17:56:58
Event: Advisory disclosed
Date: 2026-06-21 00:00:00
Event: VulDB entry created
Date: 2026-06-21 02:00:00
Event: VulDB entry last update
Date: 2026-06-22 17:56:58
Replaced By
Rejected Reason
References
HyperlinkResource
https://vuldb.com/vuln/372598
vdb-entry
technical-description
https://vuldb.com/vuln/372598/cti
signature
permissions-required
https://vuldb.com/cve/CVE-2026-12804
third-party-advisory
https://vuldb.com/submit/836105
third-party-advisory
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/work_items/3619
related
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/merge_requests/979
patch
Hyperlink: https://vuldb.com/vuln/372598
Resource:
vdb-entry
technical-description
Hyperlink: https://vuldb.com/vuln/372598/cti
Resource:
signature
permissions-required
Hyperlink: https://vuldb.com/cve/CVE-2026-12804
Resource:
third-party-advisory
Hyperlink: https://vuldb.com/submit/836105
Resource:
third-party-advisory
Hyperlink: https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/work_items/3619
Resource:
related
Hyperlink: https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/merge_requests/979
Resource:
patch
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found