CVE-2026-19780
HIGHDescription
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. Was ZDI-CAN-29165.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploit Intelligence
EPSS data unavailable for this CVE.
References
Related Vulnerabilities
Other CWE-95 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2025-24893 | Critical | 9.8 | 100% | KEV | Fix |
| CVE-2024-36401 | Critical | 9.8 | 100% | KEV | Fix |
| CVE-2026-33017 | Critical | 9.8 | 96% | KEV | Fix |
| CVE-2024-21650 | Critical | 10.0 | 93% | - | Fix |
| CVE-2023-37462 | Critical | 9.9 | 92% | - | Fix |
| CVE-2024-7954 | Critical | 9.8 | 90% | - | Fix |
Common questions
How do I fix CVE-2026-19780?
No published fix for CVE-2026-19780 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
How severe is CVE-2026-19780?
CVE-2026-19780 has a CVSS v3 base score of 8.8, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-15.