---
id: CVE-2026-92355
title: >-
  In affected versions of Octopus Server, a user with permission to modify non
  built-in external feeds could exploit a path traversal flaw to overwrite
  arbitrary files on the server, which in some configurations could lead to
  remote code e…
summary: >-
  In affected versions of Octopus Server, a user with permission to modify non
  built-in external feeds could exploit a path traversal flaw to overwrite
  arbitrary files on the server, which in some configurations could lead to
  remote code e…
severity: high
cvss: 8.7
cvssVector: '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'
cwe:
  - CWE-22
vendor: Octopus Deploy
product: Octopus Server
affected:
  - octopus_server >= 2024.1.4131 < 2026.1.11725
  - octopus_server >= 2026.2.0 < 2026.2.13344
  - octopus_server >= 2026.3.0 < 2026.3.11816
published: '2026-09-16'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T19:41:10.423'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-92355'
references:
  - url: 'https://advisories.octopus.com/post/2026/sa2026-09'
    label: security@octopus.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-16T14:58:03.529536Z'
cvssSource: cna
ingestedAt: '2026-09-16T07:51:48.494Z'
epss: 0.00685
epssPercentile: 0.50494
---

## Overview

In affected versions of Octopus Server, a user with permission to modify non built-in external feeds could exploit a path traversal flaw to overwrite arbitrary files on the server, which in some configurations could lead to remote code execution.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.