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TI-2026-21318 Aliases CVE-2026-26379GHSA-7pjj-942q-wrwg

Koha versions up to 25.11 contain a Server-Side Request Forgery (SSRF) vulnerability via…

Priority HIGH 70CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00243 15th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:koha:koha:*:*:*:*:*:*:*:*up to 25.11.00VulnerableKoha
  • cpe:2.3:a:koha:koha:*:*:*:*:*:*:*:* Versions up to 25.11.00 Vulnerable ·Koha

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-26379
  2. 2026-10-03 Alias added: GHSA-7pjj-942q-wrwg

References

Exploit 1

Advisory 1

Other 1

  • TI-2024-18975 An issue in Koha ILS 23.05 and before allows a remote attacker to execute arbitrary code… CVSS 3.1CRITICAL 9.6
  • TI-2024-18976 Cross Site Scripting vulnerability in Koha ILS 23.05 and before allows a remote attacker… CVSS 3.1CRITICAL 9.6
  • TI-2026-24397 Authenticated SQL Injection in Koha displayby parameter of suggestion.pl CVSS 4.0HIGH 8.7
  • TI-2024-16095 CSV Injection vulnerability in '/members/moremember.pl' and '/admin/aqbudgets.pl'… CVSS 3.1HIGH 8.8
  • TI-2015-03876 Multiple directory traversal vulnerabilities in Koha 3.14.x before 3.14.16, 3.16.x before… CVSS 3.0HIGH 7.5
  • TI-2026-37421 A stored cross-site scripting (XSS) vulnerability in the patron restriction type… CVSS 3.1MEDIUM 6.1
See all 23 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences