Arbitrary Script Execution in Octopus Server by Octopus Deploy
CVE-2026-78210

7.1HIGH

Key Information:

Vendor

Octopus Deploy

Status
Octopus Server
Vendor
CVE Published:
1 October 2026

What is CVE-2026-78210?

In specific versions of Octopus Server, a vulnerability exists that allows users with particular scoped permission sets to execute arbitrary scripts. This can occur in environments where these users do not have the necessary authorization, potentially leading to unauthorized access and manipulation of server operations. Organizations using affected versions should prioritize applying patches to mitigate this risk.

Affected Version(s)

Octopus Server Windows 2019.5.9 < 2026.1.11739

Octopus Server Windows 2026.2.0 < 2026.2.13364

Octopus Server Windows 2026.3.0 < 2026.3.13951

References

https://advisories.octopus.com/post/2026/sa2026-13

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

This vulnerability was found by Nathan Willoughby
.