CVE-2026-126240
Fortinet FortiAuthenticator LDAP Injection Authentication Bypass
Description
A improper neutralization of special elements used in an ldap query ('ldap injection') vulnerability in Fortinet FortiAuthenticator 8.0.0 through 8.0.3, FortiAuthenticator 6.6.0 through 6.6.10 may allow an authenticated attacker to bypass authentication. Successful exploitation requires either a malicious/compromised upstream IdP, or an IdP configuration that allows the user to control the NameID (or the SAML attribute used as the username).
INFO
Published Date :
Nov. 11, 2026, 9:31 p.m.
Last Modified :
Nov. 11, 2026, 9:31 p.m.
Remotely Exploit :
Yes !
Source :
fortinet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 6abe59d8-c742-4dff-8ce8-9b0ca1073da8 |
Solution
- Update FortiAuthenticator firmware to a version later than 8.0.3.
- Update FortiAuthenticator firmware to a version later than 6.6.10.
- Ensure IdP configuration does not allow user control of NameID.
- Consider upgrading your IdP to a secure version.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-126240 vulnerability anywhere in the article.