In affected versions of Octopus Server, an authenticated user with permissions to edit an Environment or Project can set specifically crafted JSON content for the object. Insecure deserialization of this content allows the user to execute arbitrary code in the Octopus Server process.
History

Wed, 30 Sep 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Octopus
Octopus octopus Server
Vendors & Products Octopus
Octopus octopus Server

Tue, 29 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 29 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
Title Authenticated Insecure Deserialization Enables Arbitrary Code Execution in Octopus Server

Tue, 29 Sep 2026 08:00:00 +0000

Type Values Removed Values Added
Description In affected versions of Octopus Server, an authenticated user with permissions to edit an Environment or Project can set specifically crafted JSON content for the object. Insecure deserialization of this content allows the user to execute arbitrary code in the Octopus Server process.
Weaknesses CWE-502
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Octopus

Published: 2026-09-29T07:49:29.618Z

Updated: 2026-09-29T16:46:34.454Z

Reserved: 2026-09-28T09:09:50.229Z

Link: CVE-2026-101169

cve-icon Vulnrichment

Updated: 2026-09-29T16:46:28.030Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-29T08:17:19.823

Modified: 2026-09-29T21:27:41.130

Link: CVE-2026-101169

cve-icon Redhat

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