What’s Vulnerable › Vulnerabilities

CVE-2021-40874

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-07-18 · updated 2026-06-17
• Weakness: CWE-287

Description

An issue was discovered in LemonLDAP::NG (aka lemonldap-ng) 2.0.13. When using the RESTServer plug-in to operate a REST password validation service (for another LemonLDAP::NG instance, for example) and using the Kerberos authentication method combined with another method with the Combination authentication plug-in, any password will be recognized as valid for an existing user.

Affected products

• Debian Linux: 10.0
• lemonldap-ng Lemonldap::Ng: 2.0.13

References

• https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2612
• https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2612

Get alerted when CVE-2021-40874 or the next vulnerability affects your stack