Remote Code Execution Vulnerability in Koha by PTFS Europe
CVE-2026-19780

8.8HIGH

Key Information:

Vendor

Koha

Status
Koha
Vendor
CVE Published:
15 September 2026

What is CVE-2026-19780?

This vulnerability in Koha allows authenticated remote attackers to execute arbitrary code on affected installations. The flaw lies within the web service operating on TCP port 8081, where user input is not adequately validated before being processed by the eval function. This oversight can be exploited by attackers to run malicious code in the context of the service account, posing serious security risks to the system.

Affected Version(s)

Koha 25.12.00

References

https://www.zerodayinitiative.com/advisories/ZDI-26-616/
x_research-advisory

CVSS V3.0

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.