CVE-2026-56350
n8n before 2.8.0 contains an authentication bypass vulnerability allowing authenticated SSO users to disable SSO enforcement through the API
CVSS
6.3
Medium
EPSS
0.4%
p32
KEV
—
Exploit Today
10
0-100
Published: Jun 30, 2026 · Last modified: Jul 2, 2026 · CWE-285
0.3%EPSS · 30 days0.4%
2026-08-232026-09-20
n8n before 2.8.0 contains an authentication bypass vulnerability allowing authenticated SSO users to disable SSO enforcement through the API. Attackers can create local password credentials to authenticate directly, bypassing organizational SSO policies and identity-provider-enforced multi-factor authentication.
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2026-94379——
———The login() function in MISP's UsersController.php contained insufficient HTTP method validation for several security-critical code paths. The original code used an allowlist approach, checking only for specific HTTP methods (POST and PUT) before enforcing bruteforce protection, email one-time-password (OTP) verification, and login-failure logging. Because the checks were not exhaustive, an unauthenticated attacker could issue login requests using other HTTP methods and bypass all three security controls simultaneously. Specifically:
- the bruteforce blocklisting check and attempt counter were skipped, allowing unlimited credential-guessing attempts without being rate-limited or blocked
- the email OTP two-factor authentication step was skipped, defeating the second factor of authentication
- login-failure events were neither logged nor counted, removing the audit trail and the mechanism that would normally trigger a blocklist entry.
The security impact is the effective disabling of brute-force protection and multi-factor authentication for any attacker who can craft an HTTP request with a non-POST/PUT method to the login endpoint, potentially leading to credential compromise and unauthorized access to the MISP instance.
Version affected: <2.5.473hCVE-2026-941524.3 MED—
———A security vulnerability has been detected in Omega Solution FBP Fulfillment by People 2025. This impacts an unknown function of the file /user/ of the component User Profile API. The manipulation of the argument ID leads to authorization bypass. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.3hCVE-2026-939615.3 MED35.9%
——11A security flaw has been discovered in Dromara UJCMS up to 12.3.1. The affected element is the function usernameExist of the file ujcms-cms/src/main/java/com/ujcms/cms/core/web/api/UserController.java of the component UserController. Performing a manipulation of the argument Username results in improper authorization. It is possible to initiate the attack remotely. The project was informed of the problem early through an issue report but has not responded yet.3hCVE-2026-939554.3 MED33.6%
——10A vulnerability was detected in grimmory-tools grimmory up to 3.3.3/3.4.1. Affected by this vulnerability is the function streamFileToResponse of the file backend/src/main/java/org/booklore/controller/KoboController.java of the component Download Endpoint. Performing a manipulation of the argument bookId results in authorization bypass. The attack may be initiated remotely. The exploit is now public and may be used. Issue #2431 is closed as completed, but its only comment states that the issue “has already been reported elsewhere.” No fixing commit or pull request is identified there.2dCVE-2026-939544.3 MED31.6%
——9A security vulnerability has been detected in grimmory-tools grimmory up to 3.3.3/3.4.1. Affected is the function AppSettingController.getAppSettings of the file backend/src/main/java/org/booklore/controller/AppSettingController.java of the component Settings API Endpoint. Such manipulation leads to incorrect authorization. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The name of the patch is 2b66ca6df8110f6b512e030b54c16b9fbe318f17. Applying a patch is advised to resolve this issue. PR #2558, merged as 53abc8b, moved the OIDC secret into a dedicated setting, but did not by itself restrict GET /api/v1/settings.2dCVE-2026-842418.1 HIG22.8%
——7IBM Guardium Data Protection 12.2 could allow a remote attacker to bypass security restrictions due to improper authorization.2d