# CVE-2026-33735: MyTube has an Improper Access Control that Allows Complete Application Takeover

> Low-privilege users can bypass authorization to replace the application database, leading to full application takeover.

- **Severity:** High 7.4 (`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/E:P`)
- **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:** 27 Mar 2026
- **Updated:** 27 Mar 2026
- **Also known as:** GHSA-63cf-662x-crp2

## What is CVE-2026-33735?

CVE-2026-33735 is a high-severity authentication bypass vulnerability in franklioxygen MyTube, published on 27 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

MyTube is a self-hosted downloader and player for several video websites Prior to version 1.8.69, an authorization bypass in the `/api/settings/import-database` endpoint allows attackers with low-privilege credentials to upload and replace the application's SQLite database entirely, leading to a full compromise of the application. The bypass is relevant for other POST routes as well. Version 1.8.69 fixes the issue.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key), CWE-285 (Improper Authorization)

## Which versions are affected by CVE-2026-33735?

It affects 1 product.


Products: Franklioxygen Mytube.

## How do I fix CVE-2026-33735?

No fix has been published for CVE-2026-33735 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-33735 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-33735 exists.

## Other vulnerabilities in franklioxygen MyTube

- [CVE-2026-23837](https://insights.sbomify.com/CVE-2026-23837/): MyTube has an Authorization Bypass vulnerability (critical 9.8)
- [CVE-2026-33890](https://insights.sbomify.com/CVE-2026-33890/): MyTube has an Unauthenticated Admin Privilege Escalation via Passkey Registration (high 8.9)
- [CVE-2026-24139](https://insights.sbomify.com/CVE-2026-24139/): MyTube Allows Unauthorized Database Export by Guest Users (high 8.7)
- [CVE-2026-33935](https://insights.sbomify.com/CVE-2026-33935/): MyTube has Unauthenticated Account Lockout via Shared Login Attempt State (high 7.7)
- [CVE-2026-23848](https://insights.sbomify.com/CVE-2026-23848/): MyTube has Rate Limiting Bypass via X-Forwarded-For Header Spoofing (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-33735 and fix it if it is affected.

What it is: CVE-2026-33735 is a high-severity authentication bypass vulnerability in franklioxygen MyTube, published on 27 Mar 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-2026-33735 exists.

Affected product: franklioxygen MyTube. 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-2026-33735/ (Markdown: https://insights.sbomify.com/CVE-2026-33735/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-33735
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-33735
- OSV: https://osv.dev/vulnerability/CVE-2026-33735

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-33735/
Summaries are generated and may contain mistakes; the official description above is the record.