{"id":"CVE-2026-34964","title":"Adminer before 5.5.0 contains a server-side request forgery vulnerability in the login form's server field validator, which only inspects leading integers for privileged ports and fails to reject non-numeric port values","summary":"Adminer before 5.5.0 contains a server-side request forgery vulnerability in the login form's server field validator, which only inspects leading integers for privileged ports and fails to reject non-numeric port values. Attackers can in…","severity":"medium","cvss":5.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N","cwe":["CWE-918"],"published":"2026-08-25","updated":"2026-09-08","sourceUpdated":"2026-09-08T20:23:49.880","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-34964","references":[{"url":"https://github.com/vrana/adminer/security/advisories/GHSA-58cq-mgw2-38m5","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/adminer-before-ssrf-via-pdo-dsn-injection","label":"disclosure@vulncheck.com"}],"tags":["nvd"],"epss":0.00307,"epssPercentile":0.23742,"ingestedAt":"2026-09-08T21:11:12.285Z","slug":"CVE-2026-34964","body":"## Overview\n\nAdminer before 5.5.0 contains a server-side request forgery vulnerability in the login form's server field validator, which only inspects leading integers for privileged ports and fails to reject non-numeric port values. Attackers can inject PDO DSN keys like host= and port= into the server parameter to bypass the privileged-port restriction and establish TCP connections to arbitrary internal hosts and ports before authentication.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":32,"depthScoreParts":{"impact":31.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}