# CVE-2026-27705: Plane Vulnerable to Cross-Workspace/Cross-Project Asset Modification via IDOR in ProjectAssetEndpoint.patch

> Authenticated users can modify assets in any workspace or project by guessing asset IDs due to missing authorization checks in the asset patch endpoint.

- **Severity:** Medium 4.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Feb 2026
- **Updated:** 25 Feb 2026
- **Also known as:** GHSA-rfj3-8c85-g46j

## What is CVE-2026-27705?

CVE-2026-27705 is a medium-severity missing authorization vulnerability in makeplane plane, published on 25 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Plane is an an open-source project management tool. Prior to version 1.2.2, the `ProjectAssetEndpoint.patch()` method in `apps/api/plane/app/views/asset/v2.py` (lines 579–593) performs a global asset lookup using only the asset ID (`pk`) via `FileAsset.objects.get(id=pk)`, without verifying that the asset belongs to the workspace and project specified in the URL path. This allows any authenticated user (including those with the GUEST role) to modify the `attributes` and `is_uploaded` status of assets belonging to any workspace or project in the entire Plane instance by guessing or enumerating asset UUIDs. Version 1.2.2 fixes the issue.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2026-27705?

It affects 1 product.


Products: Plane Plane.

## How do I fix CVE-2026-27705?

No fix has been published for CVE-2026-27705 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-27705 being exploited?

There is no known exploitation of CVE-2026-27705 in the wild and no public exploit code.

## Other vulnerabilities in makeplane plane

- [CVE-2024-47830](https://insights.sbomify.com/CVE-2024-47830/): Plane allows server side request forgery via /_next/image endpoint (critical 9.3)
- [CVE-2026-30242](https://insights.sbomify.com/CVE-2026-30242/): Plane: SSRF via Incomplete IP Validation in Webhook URL Serializer (high 8.5)
- [CVE-2026-46558](https://insights.sbomify.com/CVE-2026-46558/): Missing authorization in plane (high 8.3)
- [CVE-2026-39843](https://insights.sbomify.com/CVE-2026-39843/): Plane has a Server-Side Request Forgery (SSRF) in Favicon Fetching (high 7.7)
- [CVE-2026-27706](https://insights.sbomify.com/CVE-2026-27706/): Plane Vulnerable to Full Read SSRF via Favicon Fetching in "Add Link" Feature (high 7.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-27705 and fix it if it is affected.

What it is: CVE-2026-27705 is a medium-severity missing authorization vulnerability in makeplane plane, published on 25 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-27705 in the wild and no public exploit code.

Affected product: makeplane plane. 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-2026-27705/ (Markdown: https://insights.sbomify.com/CVE-2026-27705/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-27705
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-27705
- OSV: https://osv.dev/vulnerability/CVE-2026-27705

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-27705/
Summaries are generated and may contain mistakes; the official description above is the record.