Bug 2451945 (CVE-2026-3531)

Summary: CVE-2026-3531 drupal: OpenID Connect / OAuth client: Drupal OpenID Connect / OAuth client: Authentication Bypass via an alternate path or channel
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: urgent Docs Contact:
Priority: urgent    
Version: unspecifiedKeywords: Security
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in Drupal OpenID Connect / OAuth client. This authentication bypass vulnerability allows an attacker to bypass authentication by using an alternate path or channel. This can lead to unauthorized access to resources or functionalities protected by the authentication mechanism.
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2451975, 2451976    
Bug Blocks:    

Description OSIDB Bzimport 2026-03-26 21:03:20 UTC
Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal OpenID Connect / OAuth client allows Authentication Bypass.This issue affects OpenID Connect / OAuth client: from 0.0.0 before 1.5.0.