CVE-2026-47260CWE-918

Koel Vulnerable to SSRF via Podcast Episode Enclosure URLs

High · published June 12, 2026

CVSS v3.1
7.7
EPSS
0%
Percentile
27.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.7 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00354 · 27.8th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-06-12T18:50Z
EPSS history
Timeline
  • 12 JUN 18:50Z
    Koel Vulnerable to SSRF via Podcast Episode Enclosure URLs
    cvelistv5