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.
History

Thu, 04 Jun 2026 19:00:00 +0000

Type Values Removed Values Added
First Time appeared Koha
Koha koha
CPEs cpe:2.3:a:koha:koha:*:*:*:*:*:*:*:*
Vendors & Products Koha
Koha koha

Thu, 04 Jun 2026 17:45:00 +0000

Type Values Removed Values Added
Title Koha SSRF via Z39.50 Configuration Enables Internal Network Scanning

Thu, 04 Jun 2026 16:45:00 +0000

Type Values Removed Values Added
Description An issue in Koha v.25.11 and before allows a remote attacker to execute arbitrary code via the Z39.50 configuration module 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.

Thu, 04 Jun 2026 16:15:00 +0000

Type Values Removed Values Added
Title Remote Code Execution via Z39.50 Configuration in Koha
Weaknesses CWE-78
CWE-94

Thu, 04 Jun 2026 14:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-918

Thu, 04 Jun 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 03 Jun 2026 20:45:00 +0000

Type Values Removed Values Added
Title Remote Code Execution via Z39.50 Configuration in Koha
First Time appeared Koha-community
Koha-community koha
Weaknesses CWE-78
CWE-94
Vendors & Products Koha-community
Koha-community koha

Wed, 03 Jun 2026 19:00:00 +0000

Type Values Removed Values Added
Description An issue in Koha v.25.11 and before allows a remote attacker to execute arbitrary code via the Z39.50 configuration module
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-06-03T00:00:00.000Z

Updated: 2026-06-04T16:19:25.366Z

Reserved: 2026-02-16T00:00:00.000Z

Link: CVE-2026-26379

cve-icon Vulnrichment

Updated: 2026-06-04T12:27:33.215Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-03T19:16:25.647

Modified: 2026-06-04T18:54:11.703

Link: CVE-2026-26379

cve-icon Redhat

No data.