---
title: "CVE-2026-19780: Koha - Code Injection & Remote Code Execution"
description: "Koha contains a code injection vulnerability caused by improper validation of user-supplied strings passed to the eval function in the web service on TCP port 8081, letting authenticated attackers execute arbitrary code remotely."
url: https://panop.io/threat-heartbeat/CVE-2026-19780/
---

# CVE-2026-19780 Koha - Code Injection & Remote Code Execution

Koha contains a code injection vulnerability caused by improper validation of user-supplied strings passed to the eval function in the web service on TCP port 8081, letting authenticated attackers execute arbitrary code remotely.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.58% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-19780)

## Details

Type

Code Injection

Impact

Remote Code Execution

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Published

15 September 2026

Updated

15 October 2026

Weakness

[CWE-95](https://cwe.mitre.org/data/definitions/95.html)

## Vendor fix

Update to the latest version of Koha.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-19780](https://nvd.nist.gov/vuln/detail/CVE-2026-19780)
- [https://www.zerodayinitiative.com/advisories/ZDI-26-616/](https://www.zerodayinitiative.com/advisories/ZDI-26-616/)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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