ZDI-CAN-29165: ZDI-26-616: Koha Eval Code Injection Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Koha. Authentication is required to exploit this vulnerability. The specific flaw exists within the web service, which listens on TCP port 8081 by default. The issue results from the lack of proper validation of a user-supplied string before passing it to the eval function. An attacker can leverage this vulnerability to execute code in the context of the service account.
Other sources
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Koha. Authentication is required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.8. The following CVEs are assigned: CVE-2026-19780.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What level of access does an attacker need to exploit this issue?
The attacker must be authenticated to the affected Koha installation. The provided information does not identify any specific role or permission level required beyond authentication.
What is the potential impact if the vulnerability is exploited?
An authenticated remote attacker can execute arbitrary code on the affected installation. ZDI assigned the issue a CVSS rating of 8.8.