CVE-2026-34964Adminer before 5.5.0 SSRF via PDO DSN Injection
Updated under an hour ago ()
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It affects vrana adminer. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.8 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
- Weakness (CWE)
- CWE-918
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Aug 26, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
vrana adminer vrana:adminer (from the name) | before 5.5.0; 5.5.0 not affected | CNA record |
References
- https://github.com/vrana/adminer/security/advisories/GHSA-58cq-mgw2-38m5vendor-advisory
- https://www.vulncheck.com/advisories/adminer-before-ssrf-via-pdo-dsn-injectionthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.