CVE-2020-24660

Name: CVE-2020-24660
Creator: NVD / NIST
Published: 2020-09-14T13:15:10.03+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.34%

Last modified Jun 17, 2026

CVE-2020-24660 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 2.34% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

2.34%

81.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-425

Affected Software

Vendor	Product	Versions	Update
Lemonldap-Ng	Lemonldap\	<= 2.0.8	Ng
Lemonldap-Ng	Lemonldap\	<= 0.5.2	Ng Handler
Debian	Debian Linux	10.0	—

References

https://github.com/LemonLDAPNG/node-lemonldap-ng-handler/releases/tag/0.5.2Third Party Advisory
https://github.com/LemonLDAPNG/node-lemonldap-ng-handler/security/advisories/GHSA-x44x-r84w-8v67Third Party Advisory
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2290Exploit, Third Party Advisory
https://www.debian.org/security/2020/dsa-4762Third Party Advisory
https://github.com/LemonLDAPNG/node-lemonldap-ng-handler/releases/tag/0.5.2Third Party Advisory
https://github.com/LemonLDAPNG/node-lemonldap-ng-handler/security/advisories/GHSA-x44x-r84w-8v67Third Party Advisory
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2290Exploit, Third Party Advisory
https://www.debian.org/security/2020/dsa-4762Third Party Advisory

Timeline

Published: Sep 14, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-24660?

How severe is CVE-2020-24660?

CVE-2020-24660 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.34% probability of exploitation in the next 30 days.

How do I fix CVE-2020-24660?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-24660?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST