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CVE-2019-15941 Details

Description

OpenID Connect Issuer in LemonLDAP::NG 2.x through 2.0.5 may allow an attacker to bypass access control rules via a crafted OpenID Connect authorization request. To be vulnerable, there must exist an OIDC Relaying party within the LemonLDAP configuration with weaker access control rules than the target RP, and no filtering on redirection URIs.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/issues/1881	CVE	Third Party Advisory
https://projects.ow2.org/view/lemonldap-ng/lemonldap-ng-2-0-6-is-out/	CVE	Third Party Advisory
https://seclists.org/bugtraq/2019/Sep/46	CVE	Mailing ListThird Party Advisory
https://www.debian.org/security/2019/dsa-4533	CVE	Third Party Advisory
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/issues/1881	[email protected]	Third Party Advisory
https://projects.ow2.org/view/lemonldap-ng/lemonldap-ng-2-0-6-is-out/	[email protected]	Third Party Advisory
https://seclists.org/bugtraq/2019/Sep/46	[email protected]	Mailing ListThird Party Advisory
https://www.debian.org/security/2019/dsa-4533	[email protected]	Third Party Advisory

see all 8 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-863	Incorrect Authorization	[email protected]

Affected Products

Product	Versions
lemonldap-ng lemonldap::ng	>= 2.0.0, <= 2.0.5
CPE cpe:2.3:a:lemonldap-ng:lemonldap::ng:::::::: Remediation No remediation found in references.
debian debian linux	10.0
CPE cpe:2.3:o:debian:debian_linux:10.0:::::::* Remediation No remediation found in references.

Change History

8 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
May 28, 2025	CPE Deprecation Remap	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Aug 18, 2020	CPE Deprecation Remap	[email protected]
Oct 1, 2019	Initial Analysis	[email protected]
Sep 26, 2019	CVE Modified	[email protected]
Sep 26, 2019	CVE Modified	[email protected]