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Vulnerabilities

Vulnerability · CVE-2026-95811

Lemonldap::NG::Handler versions from 2.0.0 before 2.16.10, from 2.17.0 before 2.21.6, from 2.22.0 before 2.23.4 for Perl allow an equivalent spelling of a path to bypass the locati

Published Sep 25, 2026 · catalog updated Oct 18, 2026 · Lemonldap::NG::Handler versions from 2.0.0

Check if you run it

No confirmed exploitation is on record for CVE-2026-95811. EPSS is 0.40%. Act only if a listed version of Lemonldap::NG::Handler versions from 2.0.0 is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Lemonldap::NG::Handler versions from 2.0.0).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.40%
Remediation
Advisory link
Affected products
Debian:12 lemonldap-ng · Debian:13 lemonldap-ng · Debian:14 lemonldap-ng

Lemonldap::NG::Handler versions from 2.0.0 before 2.16.10, from 2.17.0 before 2.21.6, from 2.22.0 before 2.23.4 for Perl allow an equivalent spelling of a path to bypass the locationRules that restrict it. The handler matches each vhost's locationRules regular expressions against REQUEST_URI, the raw request line, while the web server routes on the path it has already percent-decoded and normalized. A request that percent-encodes a character of the path, inserts dot segments, or doubles a slash therefore reaches the protected resource under a URI that no rule regexp matches, and the vhost's default rule decides access. Deny rules, identity and group conditions, and unprotect and skip rules are bypassed alike. Only a vhost whose default rule is more permissive than its other rules is affected. An authenticated user then reaches any URL a locationRules regexp was meant to restrict, but gains no more than that default rule already grants.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Debian:12 lemonldap-ng0 → 2.16.1+ds-deb12u10
  • Debian:13 lemonldap-ng0 → 2.21.2+ds-1+deb13u4
  • Debian:14 lemonldap-ng0 → 2.23.4+ds-1

How to fix CVE-2026-95811

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-95811. EPSS is 0.40%. Act only if a listed version of Lemonldap::NG::Handler versions from 2.0.0 is installed.

Which versions are affected?

Compare what you have installed with 0 → 2.16.1+ds-deb12u10, 0 → 2.21.2+ds-1+deb13u4, 0 → 2.23.4+ds-1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.40%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Debian security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 25, 2026 · Trivy Vulnerability DB

    Detected

    Lemonldap::NG::Handler versions from 2.0.0 before 2.16.10, from 2.17.0 before 2.21.6, from 2.22.0 before 2.23.4 for Perl allow an equivalent spelling of a path to bypass the locationRules that restrict it. The handler matches each vhost's locationRules regular expressions against REQUEST_URI, the raw request line, while the web server routes on the path it has already percent-decoded and normalize

  2. Oct 18, 2026 · Trivy Vulnerability DB

    Fix available

    lemonldap-ng fixed in 2.16.1+ds-deb12u10; lemonldap-ng fixed in 2.21.2+ds-1+deb13u4; lemonldap-ng fixed in 2.23.4+ds-1

  3. Oct 18, 2026 · Trivy Vulnerability DB

    Fix available

    lemonldap-ng fixed in 2.16.1+ds-deb12u10

  4. Oct 18, 2026 · Trivy Vulnerability DB

    Fix available

    lemonldap-ng fixed in 2.21.2+ds-1+deb13u4

  5. Oct 18, 2026 · Trivy Vulnerability DB

    Fix available

    lemonldap-ng fixed in 2.23.4+ds-1

  6. Oct 18, 2026 · Trivy Vulnerability DB

    Updated

    Lemonldap::NG::Handler versions from 2.0.0 before 2.16.10, from 2.17.0 before 2.21.6, from 2.22.0 before 2.23.4 for Perl allow an equivalent spelling of a path to bypass the locationRules that restrict it. The handler matches each vhost's locationRules regular expressions against REQUEST_URI, the raw request line, while the web server routes on the path it has already percent-decoded and normalize

Sources

  • CVE.orgVulnerability recordCVE-2026-95811

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-95811

    30-day exploitation probability 0.4%

    first.org
  • OpenSSF OSV / OSV ScannerPackage advisoryDEBIAN-CVE-2026-95811
    osv.dev
  • Trivy Vulnerability DBPackage advisoryDEBIAN-CVE-2026-95811

    Lemonldap::NG::Handler versions from 2.0.0 before 2.16.10, from 2.17.0 before 2.21.6, from 2.22.0 before 2.23.4 for Perl allow an equivalent spelling of a path to bypass the locationRules that restrict it. The handler matches each vhost's locationRules regular expressions against

    osv.dev

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.