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

CVSS 6.3 · Medium EPSS 0.16% · P6

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProductVersion RangeStatus
koelkoel< 9.7.1affected
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I. Basic Information for CVE-2026-50552

Vulnerability Information
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Vulnerability Title
Koel: Server-Side Request Forgery (SSRF) in radio station creation due to missing validation bail
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
服务端请求伪造(SSRF)
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
koelkoel < 9.7.1 -

II. Public POCs for CVE-2026-50552

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III. Intelligence Information for CVE-2026-50552

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Vendor Advisories for CVE-2026-50552 (1)

IV. Related Vulnerabilities

Same product: koel
Same vendor: koel
Same weakness: CWE-918

V. Comments for CVE-2026-50552

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