CVE-2026-22601 OpenProject is Vulnerable to Code Execution in E-Mail function

High 8.6 Published Updated

A registered administrator can execute arbitrary commands by configuring the sendmail binary path and sending a test email.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-22601?

CVE-2026-22601 is a high-severity command injection vulnerability in opf openproject, published on 10 Jan 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

OpenProject is an open-source, web-based project management software. For OpenProject version 16.6.1 and below, a registered administrator can execute arbitrary command by configuring sendmail binary path and sending a test email. This issue has been patched in version 16.6.2.

Weakness: CWE-77

Which versions are affected by CVE-2026-22601?

It affects 1 product.

Products include Openproject Openproject.

How do I fix CVE-2026-22601?

No fix has been published for CVE-2026-22601 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-22601 being exploited?

There is no known exploitation of CVE-2026-22601 in the wild and no public exploit code.

Sources

Also known as GHSA-9vrv-7h26-c7jc.

Is CVE-2026-22601 in your software?

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