CVE-2021-40874

An issue was discovered in LemonLDAP::NG (aka lemonldap-ng) 2.0.13. Wh ...

Published 18 Jul 2022Modified 17 Jun 2026CWE 287

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Ubuntu (medium).

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 packages and fixed versions

Source	Package	Fixed in
debian 10	lemonldap-ng	2.0.2+ds-7+deb10u7
debian 11	lemonldap-ng	2.0.11+ds-4+deb11u1
debian 12	lemonldap-ng	2.0.14+ds-1
debian 13	lemonldap-ng	2.0.14+ds-1
debian 14	lemonldap-ng	2.0.14+ds-1
echo	lemonldap-ng	2.0.14+ds-1
ubuntu 18.04-ESM	lemonldap-ng	no fix listed
ubuntu 20.04-ESM	lemonldap-ng	no fix listed

References

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Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.