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CVE-2025-27112 (GCVE-0-2025-27112)

Vulnerability from cvelistv5 – Published: 2025-02-24 18:37 – Updated: 2025-02-24 19:00
VLAI Shadowserver Previdian
Title
Navidrome has authentication bypass in Subsonic API with non-existent username
Summary
Navidrome is an open source web-based music collection server and streamer. Starting in version 0.52.0 and prior to version 0.54.5, in certain Subsonic API endpoints, a flaw in the authentication check process allows an attacker to specify any arbitrary username that does not exist on the system, along with a salted hash of an empty password. Under these conditions, Navidrome treats the request as authenticated, granting access to various Subsonic endpoints without requiring valid credentials. An attacker can use any non-existent username to bypass the authentication system and gain access to various read-only data in Navidrome, such as user playlists. However, any attempt to modify data fails with a "permission denied" error due to insufficient permissions, limiting the impact to unauthorized viewing of information. Version 0.54.5 contains a patch for this issue.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-24 18:59 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
References
Impacted products
Vendor Product Version CPE status
navidrome navidrome Affected: >= 0.52.0, < 0.54.5
guessed Create a notification for this product.
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 95ced235-39e9-4910-b4c3-af94b40b352d

Vulnerability ID: CVE-2025-27112

Status: Confirmed

Status Updated: 2026-09-06 00:00 UTC

Exploited: Yes

Characteristics
Severity: 65.0
Timestamps
First Seen: 2025-06-24
Asserted: 2025-06-24
Last Seen: 2026-09-06
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: Navidrome / Navidrome | Class: other-software | Severity: Medium (CVSS 6.5) | IoT: no | In CISA KEV: no | Honeypot connections on 2026-09-06: 1
Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver

Details
1D 1
Iot no
Feed Shadowserver Foundation honeypot/exploited-vulnerabilities
Type http-scan
Class other-software
7D Avg 0
Vendor Navidrome
30D Avg 0
90D Avg 0
Product Navidrome
Cisa Kev no
Connections 1
Observation Date 2026-09-06
Vulnerability Class CVSS
Vulnerability Score 6.5
Vulnerability Severity Medium
References
Created: 2026-07-01 07:18 UTC | Updated: 2026-09-08 01:01 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: d920d147-4ad6-44c0-b360-8c379d9ac88f

Vulnerability ID: CVE-2025-27112

Status: Confirmed

Status Updated: 2025-06-24 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2025-06-24
Asserted: 2025-06-24
Scope
Notes: KEVIntel entry: Navidrome has authentication bypass in Subsonic API with non-existent username | Affected: navidrome / navidrome | CVSS: 6.9 (MEDIUM) | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title Navidrome has authentication bypass in Subsonic API with non-existent username
Vendor navidrome
Product navidrome
Added Date 2025-06-24T00:00:00.000Z
Cvss Score 6.9
Epss Score None
Cvss Severity MEDIUM
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-06-23 11:12 UTC | Updated: 2026-06-23 11:12 UTC
Show details on NVD website
To clipboard 

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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.