P5Verified

CVE-2026-34959: adminer 0 to before 5.5.0

CVE-2026-34959. CVSS 3.1 base score 4.7 (MEDIUM, Vendor/CNA). EPSS 0.0029 (percentile 0.19903), scored 11-Oct-2026.

Affected technology

adminer · 0 to before 5.5.0
vrana

Description’s affected range: before 5.5.0 prepends the client-supplied X-Forwarded-Prefix header to $_SERVER["REQUEST_URI"] with no trusted-proxy check and no validation of the prefix value

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · Passive user interaction

What an attacker can do

An attacker can supply an absolute URL (e.g. Vendor/CNA’s CVSS 4.0 assessment (base score 5.3/10) rates confidentiality and availability impact as none; integrity impact as low.

Published 12-Oct-2026 16:55 UTC

CWE: CWE-20
CCR priority: 18.9 /100 (P5)
CVSS 3.1: 4.7 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N · Vendor/CNA
EPSS: 0.0029 · percentile 0.19903 · 2026-10-11
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-12 16:54:24.294989+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-34959.html