Vulnerability · Published Oct 30, 2026 · Assigned by VulnCheck
CVE-2026-119429phpMyAdmin through 5.2.3 Two-Factor Authentication Removal via /config/set
Medium 4.3
In plain English
A medium-severity security flaw in phpMyAdmin from phpMyAdmin. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.4%top 65.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | phpmyadmin | no fix listed | DEBIAN-CVE-2026-119429 |
| Debian:13 | phpmyadmin | no fix listed | DEBIAN-CVE-2026-119429 |
| Debian:14 | phpmyadmin | no fix listed | DEBIAN-CVE-2026-119429 |
| Ubuntu:22.04:LTS | phpmyadmin | no fix listed | UBUNTU-CVE-2026-119429 |
| Ubuntu:24.04:LTS | phpmyadmin | no fix listed | UBUNTU-CVE-2026-119429 |
| Ubuntu:26.04:LTS | phpmyadmin | no fix listed | UBUNTU-CVE-2026-119429 |
| Ubuntu:26.10 | phpmyadmin | no fix listed | UBUNTU-CVE-2026-119429 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| phpMyAdmin | phpMyAdmin | 0 – through 5.2.3 |
Weakness: CWE-620 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
References
- https://github.com/phpmyadmin/phpmyadmin/commit/b2a3e41f1e9ce42d1ee3f07a91f476029987799f patch
- https://github.com/phpmyadmin/phpmyadmin/commit/6482dfa28bd56d515f482b008b194a516646fe1b patch
- https://github.com/phpmyadmin/phpmyadmin/pull/19087 patch, issue-tracking
- https://github.com/phpmyadmin/phpmyadmin/blob/RELEASE_5_2_3/libraries/classes/Controllers/Config/SetConfigController.php#L29-L41 technical-description
- https://abraxaslabs.tech/research/phpmyadmin-config-set-2fa third-party-advisory
- https://github.com/phpmyadmin/phpmyadmin product
- VulnCheck Advisory: phpMyAdmin through 5.2.3 Two-Factor Authentication Removal via /config/set third-party-advisory