CVE-2026-12887: Path Traversal
Published Oct 27, 2026
·Updated
In affected versions of Octopus Server, a user with permission to upload a malicious nuget package is able to deploy a script step so the script executes outside of the parent directory.
Affected Software
1 affected component
Octopus Deploy Octopus Server
Event History
Oct 27, 2026
CVE Published
via MITRE·01:15 PM
Data Sourced
via MITRE·01:15 PM
DescriptionWeakness
Frequently Asked Questions
1
What level of access does an attacker need to exploit this issue?
The attacker must have permission to upload a malicious NuGet package. The available information does not indicate that unauthenticated or low-privileged users can exploit it.
2
What is the security impact of a successful exploit?
A malicious NuGet package can cause a deployed script step to execute outside its parent directory. This is a path traversal issue affecting script deployment behavior.