High 7.5Published Feb 9, 2026

CVE-2026-25892Adminer has an Unauthenticated Persistent DoS via Array Injection in ?script=version Endpoint

Updated under an hour ago (Oct 26, 2026, 3:40 PM ET)

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It affects vrana adminer and 1 other product. Add what you run to find out whether that includes you.

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Every CVE for vrana adminer

Exploited in the last 30 days

Adminer is open-source database management software. Adminer v5.4.1 and earlier has a version check mechanism where adminer.org sends signed version info via JavaScript postMessage, which the browser then POSTs to ?script=version. This endpoint lacks origin validation and accepts POST data from any source. An attacker can POST version[] parameter which PHP converts to an array. On next page load, openssl_verify() receives this array instead of string and throws TypeError, returning HTTP 500 to all users. Upgrade to Adminer 5.4.2.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-20
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Feb 10, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

vrana adminer vrana:adminer (from the name)	from 4.6.2, < 5.4.2	CNA record
adminer adminer adminer:adminer	from 4.6.2 before 5.4.2	NVD

References

References

https://github.com/vrana/adminer/security/advisories/GHSA-q4f2-39gr-45jh	x-refsource-confirm, exploit, vendor-advisory
https://github.com/vrana/adminer/commit/21d3a3150388677b18647d68aec93b7850e457d3	x-refsource-misc, patch
https://github.com/vrana/adminer/releases/tag/v5.4.2	x-refsource-misc, product, release-notes

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.