# CVE-2026-33949: @tinacms/graphql has Path Traversal that leads to overwrite of arbitrary files

> Unauthenticated attackers can overwrite arbitrary files via path traversal in TinaCMS GraphQL, potentially leading to arbitrary code execution.

- **Severity:** High 8.1 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 1 Apr 2026
- **Updated:** 3 Apr 2026
- **Also known as:** GHSA-v9p7-gf3q-h779

## What is CVE-2026-33949?

CVE-2026-33949 is a high-severity path traversal vulnerability in tinacms, published on 1 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Tina is a headless content management system. Prior to version 2.2.2, a path traversal vulnerability in @tinacms/graphql allows unauthenticated users to write and overwrite arbitrary files within the project root. This is achieved by manipulating the relativePath parameter in GraphQL mutations. The impact includes the ability to replace critical server configuration files and potentially execute arbitrary commands by sabotaging build script. This issue has been patched in version 2.2.2.

Weakness: CWE-73 (External Control of File Name or Path), CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2026-33949?

2 open source packages ship an affected version, including @tinacms/graphql. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `@tinacms/graphql` | npm | All versions | 2.2.2 |
| `@tinacms/graphql` | npm | All versions | 2.2.2 |

Products: Ssw Tinacms\/Graphql.

## How do I fix CVE-2026-33949?

Upgrade @tinacms/graphql to 2.2.2 or later.

## Is CVE-2026-33949 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-33949 exists.

## Other vulnerabilities in tinacms

- [CVE-2026-34604](https://insights.sbomify.com/CVE-2026-34604/): @tinacms/graphql's `FilesystemBridge` Path Validation Can Be Bypassed via Symlinks or Junctions (high 7.1)
- [CVE-2026-24125](https://insights.sbomify.com/CVE-2026-24125/): Path Traversal in @tinacms/graphql (medium 6.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-33949 and fix it if it is affected.

What it is: CVE-2026-33949 is a high-severity path traversal vulnerability in tinacms, published on 1 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-33949 exists.

Affected packages and fixed versions:
- @tinacms/graphql (npm): affected all versions; fixed in 2.2.2
- @tinacms/graphql (npm): affected all versions; fixed in 2.2.2

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-2026-33949/ (Markdown: https://insights.sbomify.com/CVE-2026-33949/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-33949
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-33949
- OSV: https://osv.dev/vulnerability/CVE-2026-33949

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-33949/
Summaries are generated and may contain mistakes; the official description above is the record.