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No exploitation reportedFix available

CVE-2020-24660

No exploitation reported by the sources we read.

  • Published2020-09-14
  • WeaknessCWE-425

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An issue was discovered in LemonLDAP::NG through 2.0.8, when NGINX is used. An attacker may bypass URL-based access control to protected Virtual Hosts by submitting a non-normalized URI. This also affects versions before 0.5.2 of the "Lemonldap::NG handler for Node.js" package.

Timeline

dates in UTC
  1. 2020-09-1413:15CVE publishedNVD

Versions per branch

NVD · OSV
Debian debian linux
BranchAffectedFixed in
10.0= 10.0no fix published
Lemonldap-ng lemonldap\
BranchAffectedFixed in
—= \no fix published
lemonldap-ng-handler
BranchAffectedFixed in
0.5< 0.5.20.5.2

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • lemonldap-ngUbuntu:20.04:LTSall versions · no fixed version listed
  • lemonldap-ngUbuntu:18.04:LTSall versions · no fixed version listed
  • lemonldap-ngUbuntu:16.04:LTSall versions · no fixed version listed
  • lemonldap-ngDebian:14all versions · fixed in 2.0.9+ds-1
  • lemonldap-ngDebian:13all versions · fixed in 2.0.9+ds-1
  • lemonldap-ngDebian:12all versions · fixed in 2.0.9+ds-1
  • lemonldap-ngDebian:10all versions · fixed in 2.0.2+ds-7+deb10u5
  • lemonldap-ngDebian:9all versions · fixed in 1.9.7-3+deb9u4

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.19.8read 2026-10-23
  • NVDCVSS 2.07.5read 2026-10-23
  • NVDweakness (CWE)CWE-425read 2026-10-23
  • FIRST EPSSEPSS score2.5 %2026-11-09
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryMODERATE2020-09-09

Identifiers

  • EUVD-2020-1371same flawENISA EUVD · LicenseRef-ENISA-legal-notice
  • GHSA-x44x-r84w-8v67same flawGitHub Advisory Database · CC-BY-4.0
  • DLA-2367-1advisory covering several CVEsDebian · LicenseRef-unstated
  • DSA-4762-1advisory covering several CVEsDebian · LicenseRef-unstated

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2020-09-14
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-x44x-r84w-8v67

Frequently asked questions

What is CVE-2020-24660?

An issue was discovered in LemonLDAP::NG through 2.0.8, when NGINX is used. An attacker may bypass URL-based access control to protected Virtual Hosts by submitting a non-normalized URI. This also affects versions before 0.5.2 of the "Lemonldap::NG handler for Node.js" package.

Is CVE-2020-24660 actively exploited?

Active exploitation of CVE-2020-24660 has not been confirmed. Its EPSS score was 2.5% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-24660?

CVE-2020-24660 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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