CVE-2026-26379

medium

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

https://github.com/Koha-Community/Koha

https://g03m0n.github.io/posts/cve-2026-26379/

https://g03m0n.github.io/

Details

Source: Mitre, NVD

Published: 2026-06-03

Updated: 2026-06-04

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.0005