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Debian dla-4797 : lemonldap-ng - security update
medium Nessus Plugin ID 350782
Synopsis
The remote Debian host is missing a security-related update.Description
The remote Debian 12 host has packages installed that are affected by a vulnerability as referenced in the dla-4797 advisory.- ------------------------------------------------------------------------- Debian LTS Advisory DLA-4797-1 [email protected] https://www.debian.org/lts/security/ Xavier Guimard September 26, 2026 https://wiki.debian.org/LTS
- -------------------------------------------------------------------------
Package : lemonldap-ng Version : 2.16.1+ds-deb12u10 CVE ID : CVE-2026-95811
Several vulnerabilities have been fixed in lemonldap-ng, a Web-SSO system.
CVE-2026-95811
Access rules (locationRules) were tested against the raw request URI whereas web servers route on the decoded and normalized path. An attacker could bypass some admin interface access rules using percent-encoded characters or dot-segments in URLs (not the default rule).
Additionally, the following issues have been fixed:
* Request parameters sent several times could inject arbitrary keys in internal data structures (RESTProxy/SOAP data, spoofId, templates).
* When checking access to another virtual host (menu, REST/SOAP authorizationfor, CheckUser), the authentication level of the current virtual host was used instead of the target one.
* With browsersDontStorePassword, passwords typed in portal forms could be displayed in clear text.
For Debian 12 bookworm, these problems have been fixed in version 2.16.1+ds-deb12u10.
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 LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS
Tenable has extracted the preceding description block directly from the Debian security advisory.
Note that Nessus has not tested for this issue 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/bookworm/lemonldap-ng
Plugin Details
Severity: Medium
ID: 350782
File Name: debian_DLA-4797.nasl
Version: 1.1
Type: Local
Agent: unix
Family: Debian Local Security Checks
Published: 9/26/2026
Updated: 9/26/2026
Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5
Percentile: 93.23
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5
Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:C/A:N
CVSS Score Source: CVE-2026-95811
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Temporal Score: 5.7
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:debian:debian_linux:12.0, 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: 9/26/2026
Vulnerability Publication Date: 9/25/2026
Reference Information
CVE: CVE-2026-95811