CVE-2026-34964
6.9
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
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 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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| vrana | adminer | 0 < 5.5.0 | affected |
| vrana | adminer | 5.5.0 | unaffected |
Weaknesses
- CWE-918: Server-Side Request Forgery (SSRF)
References
- https://github.com/vrana/adminer/security/advisories/GHSA-58cq-mgw2-38m5
- https://www.vulncheck.com/advisories/adminer-before-ssrf-via-pdo-dsn-injection
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.