CVE-2026-26379

MEDIUM

Koha <= 25.11 - Remote Code Execution via Z39.50 Configuration Module

Title source: llm
STIX 2.1

Description

Koha versions up to 25.11 contain a Server-Side Request Forgery (SSRF) vulnerability via the Z39.50/SRU server configuration. This allows authenticated attackers to perform internal network scanning and identify running services by analyzing server response times.

References (3)

Core 3

Scores

CVSS v3 6.5
EPSS 0.0021
EPSS Percentile 11.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact total

Details

CWE
CWE-918
Status published
Products (1)
koha/koha < 25.11.00
Published Jun 03, 2026
Tracked Since Jun 04, 2026