CVE-2026-47260 HIGH

CVE-2026-47260: Koel Vulnerable to SSRF via Podcast Episode Enclosure URLs

Vendor Koel
Product koel
Weakness CWE-918 · SSRF
Published June 12, 2026
Last update June 13, 2026

CVSS base score

7.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

What the vulnerability does

01Description

Koel is a free, open-source music streaming solution. Prior to version 9.3.5, Koel validates the podcast feed URL via the SafeUrl rule (DNS resolution + public IP check), but the individual episode <enclosure url="..."> values extracted from the RSS XML are stored directly into the database without any SSRF validation. When a user plays an episode, the server downloads the full HTTP response from the unvalidated enclosure URL via Http::sink()->get() and streams it back to the user, enabling full-read SSRF against internal services. This issue has been patched in version 9.3.5.

Key dates

02Disclosure timeline

June 12, 2026 CVE published
June 13, 2026 Record updated