CVE-2026-0704 Path traversal in Octopus Server

Medium 5.9 Published Updated

Attackers can delete files or contents on the host via an unvalidated API endpoint, potentially disrupting operations or destroying data.

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-2026-0704?

CVE-2026-0704 is a medium-severity path traversal vulnerability in Octopus Octopus Server, published on 25 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

In affected version of Octopus Deploy it was possible to remove files and/or contents of files on the host using an API endpoint. The field lacked validation which could potentially result in ways to circumvent expected workflows.

Weakness: CWE-22

Which versions are affected by CVE-2026-0704?

It affects 1 product.

Products include Octopus Octopus Server.

How do I fix CVE-2026-0704?

No fix has been published for CVE-2026-0704 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-0704 being exploited?

There is no known exploitation of CVE-2026-0704 in the wild and no public exploit code.

All Octopus Octopus Server vulnerabilities

Sources

Also known as GHSA-mmcc-ppg6-c7j2.

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