# CVE-2026-0704: Path traversal in Octopus Server

> Attackers can delete files or contents on the host via an unvalidated API endpoint, potentially disrupting operations or destroying data.

- **Severity:** Medium 5.9 (`CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Feb 2026
- **Updated:** 27 Feb 2026
- **Also known as:** GHSA-mmcc-ppg6-c7j2

## What is CVE-2026-0704?

CVE-2026-0704 is a medium-severity path traversal vulnerability in Octopus Octopus Server, published on 25 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

In affected version of Octopus Deploy it was possible to remove files and/or contents of files on the host using an API endpoint. The field lacked validation which could potentially result in ways to circumvent expected workflows.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2026-0704?

It affects 1 product.


Products: Octopus Octopus Server.

## How do I fix CVE-2026-0704?

No fix has been published for CVE-2026-0704 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-0704 being exploited?

There is no known exploitation of CVE-2026-0704 in the wild and no public exploit code.

## Other vulnerabilities in Octopus Octopus Server

- [CVE-2022-2572](https://insights.sbomify.com/CVE-2022-2572/): Auth bypass in Octopus Server (critical 9.8)
- [CVE-2022-2778](https://insights.sbomify.com/CVE-2022-2778/): Security feature bypass in Octopus Server (critical 9.8)
- [CVE-2018-11320](https://insights.sbomify.com/CVE-2018-11320/): Information disclosure in n/a (critical 9.8)
- [CVE-2022-2782](https://insights.sbomify.com/CVE-2022-2782/): Auth bypass in Octopus Server (critical 9.1)
- [CVE-2024-2975](https://insights.sbomify.com/CVE-2024-2975/): Race condition in Octopus Server (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-0704 and fix it if it is affected.

What it is: CVE-2026-0704 is a medium-severity path traversal vulnerability in Octopus Octopus Server, published on 25 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-0704 in the wild and no public exploit code.

Affected product: Octopus Octopus Server. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-0704/ (Markdown: https://insights.sbomify.com/CVE-2026-0704/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-0704
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-0704
- OSV: https://osv.dev/vulnerability/CVE-2026-0704

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-0704/
Summaries are generated and may contain mistakes; the official description above is the record.