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Debian dsa-6434 : lemonldap-ng - security update

medium Nessus Plugin ID 334970

Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6434 advisory.

 - ------------------------------------------------------------------------- Debian Security Advisory DSA-6434-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff August 12, 2026 https://www.debian.org/security/faq
 - -------------------------------------------------------------------------

 Package : lemonldap-ng CVE ID : CVE-2026-12804 CVE-2026-19349

 It was discovered that the Lemonldap::NG web SSO system insufficiently enforced access when using the GitHub/Linkedin authentication backends.

 For the stable distribution (trixie), these problems have been fixed in version 2.21.2+ds-1+deb13u3.

 We recommend that you upgrade your lemonldap-ng packages.

 For the detailed security status of lemonldap-ng please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/lemonldap-ng

 Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/

 Mailing list: [email protected]

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the lemonldap-ng packages.

See Also

https://packages.debian.org/source/trixie/lemonldap-ng

https://security-tracker.debian.org/tracker/CVE-2026-12804

https://security-tracker.debian.org/tracker/CVE-2026-19349

http://www.nessus.org/u?9f8cb51e

Plugin Details

Severity: Medium

ID: 334970

File Name: debian_DSA-6434.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 8/12/2026

Updated: 8/12/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.14

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS Score Source: CVE-2026-12804

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 5.3

Threat Score: 1.3

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:13.0, p-cpe:/a:debian:debian_linux:lemonldap-ng-doc, p-cpe:/a:debian:debian_linux:lemonldap-ng-fastcgi-server, p-cpe:/a:debian:debian_linux:lemonldap-ng-handler, p-cpe:/a:debian:debian_linux:lemonldap-ng-uwsgi-app, p-cpe:/a:debian:debian_linux:lemonldap-ng, p-cpe:/a:debian:debian_linux:liblemonldap-ng-common-perl, p-cpe:/a:debian:debian_linux:liblemonldap-ng-handler-perl, p-cpe:/a:debian:debian_linux:liblemonldap-ng-manager-perl, p-cpe:/a:debian:debian_linux:liblemonldap-ng-portal-perl, p-cpe:/a:debian:debian_linux:liblemonldap-ng-ssoaas-apache-client-perl

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 8/12/2026

Vulnerability Publication Date: 6/21/2026

Reference Information

CVE: CVE-2026-12804, CVE-2026-19349