Bug 2563933 (CVE-2026-119429)

Summary: CVE-2026-119429 phpMyAdmin: phpMyAdmin: Removal of two-factor authentication via missing re-authentication
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in phpMyAdmin. An authenticated remote attacker can disable two-factor authentication (2FA) on an account by submitting a configuration update request without being prompted for password re-verification. An attacker with access to an active session can exploit this issue to remove secondary authentication requirements, allowing subsequent logins using only the database password.
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: 2565563, 2565565, 2565566, 2565567, 2565568    
Bug Blocks:    

Description OSIDB Bzimport 2026-10-30 11:44:18 UTC
phpMyAdmin through 5.2.3 contains a missing re-authentication vulnerability that allows authenticated attackers to remove two-factor authentication by posting the 2fa key to /config/set. Attackers holding a hijacked session can submit key=2fa with a null JSON value to SetConfigController, stripping 2FA so later logins require only the MySQL password.