{"id":"CVE-2026-34964","summary":"Adminer before 5.5.0 SSRF via PDO DSN Injection","details":"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 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.","aliases":["GHSA-58cq-mgw2-38m5"],"modified":"2026-09-10T03:30:58.646325402Z","published":"2026-08-25T01:29:58.396Z","database_specific":{"cwe_ids":["CWE-918"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34964.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34964.json"},{"type":"ADVISORY","url":"https://github.com/vrana/adminer/security/advisories/GHSA-58cq-mgw2-38m5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34964"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/adminer-before-ssrf-via-pdo-dsn-injection"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/vrana/adminer","events":[{"introduced":"0"},{"fixed":"94dc72bba68fdb6e981abca35bafd315a7e776eb"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"5.5.0"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["v5.4.4","v5.4.3","v5.4.2","v5.4.1","v5.4.0","v5.3.0","v5.2.1","v5.2.0","v5.1.1","v5.1.0","v5.0.6","v5.0.5","v5.0.4","v5.0.3","v5.0.2","v5.0.1","v5.0.0","v4.17.1","v4.17.0","v4.16.0","v4.8.1","v4.8.0","v4.7.9","v4.7.8","v4.7.7","v4.7.5","v4.7.4","v4.7.3","v4.7.2","v4.7.1","v4.7.0","v4.6.3","v4.6.2","v4.6.1","v4.6.0","v4.5.0","v4.4.0","v4.3.1","v4.3.0","v4.2.5","v4.2.4","v4.2.3","v4.2.2","v4.2.1","v4.2.0","v4.1.0","v4.0.3","v4.0.2","v4.0.1","v4.0.0","v3.7.1","v3.7.0","v3.6.4","v3.6.3","v3.6.2","v3.6.1","v3.6.0","v3.5.1","v3.5.0","v3.4.0","v3.3.4","v3.3.3","v3.3.2","v3.3.1","v3.3.0","v3.2.2","v3.2.1","v3.2.0","v3.1.0","v3.0.1","v3.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34964.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N"}]}