Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2020-24660

31
FAUCET Score

CVE-2020-24660 describes a critical access control bypass vulnerability affecting LemonLDAP::NG versions through 2.0.8 when used with NGINX, and also earlier versions of the "Lemonldap::NG handler for Node.js" package. An unauthenticated attacker can exploit this by submitting a non-normalized URI to bypass URL-based access controls on protected Virtual Hosts, leading to complete compromise of confidentiality, integrity, and availability. Despite its CVSS score of 9.8 (Critical) and high FAUCET Risk Score, there is currently no evidence of active exploitation, public exploit code, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.0.8CPE matchmatch criteria
cpe:2.3:a:lemonldap-ng:lemonldap\:\:ng:*:*:*:*:*:*:*:*
<= 0.5.2CPE matchmatch criteria
cpe:2.3:a:lemonldap-ng:lemonldap\:\:ng_handler:*:*:*:*:*:node.js:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.34%
Probability of exploitation in next 30 days
EPSS Percentile
81.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0234 is in the 72nd percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

npmpatch availablevia ghsa
Product: lemonldap-ng-handlerFixed in: 0.5.2

Vendor Advisories (1)

npmGHSA-x44x-r84w-8v67medium

Lack of URL normalization may lead to authorization bypass when URL access rules are used

Sep 9, 2020

References

github.com / LemonLDAPNG/node-lemonldap-ng-handler/releases/tag/0.5.2
Third Party Advisory
github.com / LemonLDAPNG/node-lemonldap-ng-handler/security/advisories/GHSA-x44x-r84w-8v67
Third Party Advisory
gitlab.ow2.org / lemonldap-ng/lemonldap-ng/-/issues/2290
ExploitThird Party Advisory
debian.org / security/2020/dsa-4762
Third Party Advisory