In affected versions, Octopus Server incorrectly evaluates multiple scoped permission assignments, allowing a highly privileged user to obtain deployment permissions beyond those actually granted to them.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00207.

Exploitation none

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Octopus Deploy Octopus Server unaffected
Version Status Constraints
2019.5.0 affected < 2026.2.12438
2026.3.0 affected < 2026.3.15816

No data.

No data.

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No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://advisories.octopus.com/post/2026/sa2026-12 cve-icon cve-icon
History

Thu, 08 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Thu, 08 Oct 2026 02:45:00 +0000

Type Values Removed Values Added
Title Privilege Escalation via Improper Permission Evaluation in Octopus Server

Thu, 08 Oct 2026 01:45:00 +0000

Type Values Removed Values Added
Description In affected versions, Octopus Server incorrectly evaluates multiple scoped permission assignments, allowing a highly privileged user to obtain deployment permissions beyond those actually granted to them.
Weaknesses CWE-863
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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Octopus

Published:

Updated: 2026-10-08T11:18:23.548Z

Reserved: 2026-09-29T09:36:59.981Z

Link: CVE-2026-102488

cve-icon Vulnrichment

Updated: 2026-10-08T11:17:40.333Z

cve-icon NVD

Status : Received

Published: 2026-10-08T02:16:53.003

Modified: 2026-10-08T12:17:13.490

Link: CVE-2026-102488

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-08T02:30:06Z

Weaknesses