Read-only data exposure via nonexistent-user authentication
Published Feb 24, 2025 · Updated Feb 24, 2025
Authentication bypass in the Subsonic API in Navidrome 0.52.0 through 0.54.4 allows remote attackers to read server data. The authentication middleware continues after FindByUsername returns ErrNotFound and validates a zero-value user whose password field is empty against the supplied salted MD5 token. No credentials or user interaction are required; successful requests can read playlists and other endpoint data, while write operations are denied.
Summary
What happened
Authentication bypass in the Subsonic API in Navidrome 0.52.0 through 0.54.4 allows remote attackers to read server data. The authentication middleware continues after FindByUsername returns ErrNotFound and validates a zero-value user whose password field is empty against the supplied salted MD5 token. No credentials or user interaction are required; successful requests can read playlists and other endpoint data, while write operations are denied.
The record
- CVE
- CVE-2025-27112
- Published
- Feb 24, 2025
- Updated
- Feb 24, 2025
- Vendor
- Navidrome
- Product
- Navidrome
- Classifications
- CWE-287, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 24, 2025CVE publishedPublication date reported by the CVE source.
- Feb 24, 2025Record 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.
- Affected versionversion=>= 0.52.0, < 0.54.5
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Public exploit references
- GHSA-c3p4-vm8f-386p proof of conceptproof of concept · demonstrated
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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