# CVE-2026-24134: StudioCMS has an Authorization Bypass Through User-Controlled Key

> Visitors can access draft content created by privileged users due to missing authorization checks in StudioCMS.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **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:** 27 Jan 2026
- **Updated:** 28 Jan 2026
- **Also known as:** GHSA-8cw6-53m5-4932

## What is CVE-2026-24134?

CVE-2026-24134 is a medium-severity missing authorization vulnerability in withstudiocms studiocms, published on 27 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

StudioCMS is a server-side-rendered, Astro native, headless content management system. Versions prior to 0.2.0 contain a Broken Object Level Authorization (BOLA) vulnerability in the Content Management feature that allows users with the "Visitor" role to access draft content created by Editor/Admin/Owner users. Version 0.2.0 patches the issue.

Weakness: CWE-862 (Missing Authorization), CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2026-24134?

2 open source packages ship an affected version, including studiocms. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `studiocms` | npm | All versions | 0.2.0 |
| `studiocms` | npm | All versions | 0.2.0 |

Products: Studiocms Studiocms.

## How do I fix CVE-2026-24134?

Upgrade studiocms to 0.2.0 or later.

## Is CVE-2026-24134 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-24134 exists.

Public exploit code:

- https://github.com/FilipeGaudard/CVE-2026-24134-PoC (github_poc): https://github.com/FilipeGaudard/CVE-2026-24134-PoC

## Other vulnerabilities in withstudiocms studiocms

- [CVE-2026-30944](https://insights.sbomify.com/CVE-2026-30944/): StudioCMS Affected by Privilege Escalation via Insecure API Token Generation (high 8.8)
- [CVE-2026-32101](https://insights.sbomify.com/CVE-2026-32101/): StudioCMS S3 Storage Manager Authorization Bypass via Missing `await` on Async Auth Check (high 7.6)
- [CVE-2026-30945](https://insights.sbomify.com/CVE-2026-30945/): StudioCMS: IDOR — Arbitrary API Token Revocation Leading to Denial of Service (high 7.1)
- [CVE-2026-32103](https://insights.sbomify.com/CVE-2026-32103/): StudioCMS: IDOR — Admin-to-Owner Account Takeover via Password Reset Link Generation (medium 6.8)
- [CVE-2026-32104](https://insights.sbomify.com/CVE-2026-32104/): StudioCMS: IDOR in User Notification Preferences Allows Any Authenticated User to Modify Any User's Settings (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-24134 and fix it if it is affected.

What it is: CVE-2026-24134 is a medium-severity missing authorization vulnerability in withstudiocms studiocms, published on 27 Jan 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-2026-24134 exists.

Affected packages and fixed versions:
- studiocms (npm): affected all versions; fixed in 0.2.0
- studiocms (npm): affected all versions; fixed in 0.2.0

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-2026-24134/ (Markdown: https://insights.sbomify.com/CVE-2026-24134/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-24134
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-24134
- OSV: https://osv.dev/vulnerability/CVE-2026-24134

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-24134/
Summaries are generated and may contain mistakes; the official description above is the record.