CVE-2025-0539 Server-side request forgery in Octopus Server

Medium 5.9 Published Updated

An attacker can force Octopus Server to send authenticated requests, potentially compromising the server account and underlying infrastructure.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-0539?

CVE-2025-0539 is a medium-severity server-side request forgery vulnerability in Octopus Octopus Server, published on 10 Apr 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

In affected Microsoft Windows versions of Octopus Deploy, the server can be coerced into sending server-side requests that contain authentication material allowing a suitably positioned attacker to compromise the account running Octopus Server and potentially the host infrastructure itself.

Weakness: CWE-918

Which versions are affected by CVE-2025-0539?

It affects 1 product.

Products include Octopus Octopus Server.

How do I fix CVE-2025-0539?

No fix has been published for CVE-2025-0539 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2025-0539 being exploited?

There is no known exploitation of CVE-2025-0539 in the wild and no public exploit code.

All Octopus Octopus Server vulnerabilities

Sources

Also known as GHSA-5h88-xc4r-2q76.

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