CVE-2019-15941: Debian Linux

Critical severity, CVSS 9.8. EPSS: 2.5% chance of exploitation in the next 30 days.

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.

Affected products

• Debian Debian Linux: version 10.0 only
• Lemonldap-NG Lemonldap::ng: from 2.0.0, up to and including 2.0.5

Published 2019-09-25. Last modified 2026-06-17.