CVE-2026-50552Public exploitNetwork attack vector

Authenticated internal network probing via validation fallthrough

Published Jun 12, 2026 · Updated Jun 12, 2026

SSRF in Koel before 9.7.1 allows remote authenticated users to probe internal hosts through the radio-station creation API. The URL rule chain omits Laravel's bail directive, so HasAudioContentType sends HEAD and fallback GET requests after SafeUrl rejects a private address. Any non-admin account reaches the endpoint, and distinct errors disclose host or port reachability; response bodies are not returned and stations are not persisted.

CVSS severity6.3
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Koel before 9.7.1 allows remote authenticated users to probe internal hosts through the radio-station creation API. The URL rule chain omits Laravel's bail directive, so HasAudioContentType sends HEAD and fallback GET requests after SafeUrl rejects a private address. Any non-admin account reaches the endpoint, and distinct errors disclose host or port reachability; response bodies are not returned and stations are not persisted.

The record

CVE
CVE-2026-50552
Published
Jun 12, 2026
Updated
Jun 12, 2026
Vendor
Koel
Product
Koel
Classifications
CWE-918, T1046
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 9.7.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Koel · Koelversion=< 9.7.1

Published CVSS scores

6.3GitHub Maintainer Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1046Network Service Discovery

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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