CVE-2026-3237 Missing authorization in Octopus Server
Low-privileged users can modify signing key expiration and revocation settings due to incorrect API permission validation in Octopus Server.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-3237?
CVE-2026-3237 is a low-severity missing authorization vulnerability in Octopus Octopus Server, published on 17 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In affected versions of Octopus Server it was possible for a low privileged user to manipulate an API request to change the signing key expiration and revocation time frames via an API endpoint that had incorrect permission validation. It was not possible to expose the signing keys using this vulnerability.
Weakness: CWE-285
Which versions are affected by CVE-2026-3237?
It affects 1 product.
Products include Octopus Octopus Server.
How do I fix CVE-2026-3237?
No fix has been published for CVE-2026-3237 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-3237 being exploited?
There is no known exploitation of CVE-2026-3237 in the wild and no public exploit code.
Other vulnerabilities in Octopus Octopus Server
Sources
Also known as GHSA-q8w5-c2m8-wxrx.