CVE-2025-27112: Github.com/navidrome/navidrome Authentication Bypass Vulnerability
MODERATECVE-2025-27112 is a MODERATE authentication bypass vulnerability (CWE-287: Improper Authentication) affecting Github.com/navidrome/navidrome libraries in the Go ecosystem. The issue involves navidrome allows an authentication bypass in subsonic api with non-existent username. Remediation is available by upgrading affected packages to version 0.54.5.
CVE-2025-27112 at a Glance
How to Fix CVE-2025-27112
To remediate this vulnerability, upgrade all affected Github.com/navidrome/navidrome dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade github.com/navidrome/navidrome to 0.54.5Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for github.com/navidrome/navidromeHow to Check if You Are Affected
To determine whether your application is affected by CVE-2025-27112, inspect your project dependencies for Github.com/navidrome/navidrome:
inspect dependencies for github.com/navidrome/navidromeAnalyze the terminal output to locate any version of Github.com/navidrome/navidrome in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.54.5), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-287: Improper Authentication, where when an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. In Github.com/navidrome/navidrome, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2025-27112 Affected Github.com/navidrome/navidrome Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
github.com/navidrome/navidrome
|
Go |
≥ 0.52.0
< 0.54.5
|
0.54.5
|
References
Frequently Asked Questions
What is CVE-2025-27112?
Which Github.com/navidrome/navidrome versions are affected?
What version fixes CVE-2025-27112?
Is github.com/navidrome/navidrome affected?
What CWE is associated with CVE-2025-27112?
How can I check Go dependencies for CVE-2025-27112?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-c3p4-vm8f-386p",
"modified" : "2025-02-25T17:49:07Z",
"published" : "2025-02-25T17:49:07Z",
"aliases" : [ "CVE-2025-27112" ],
"summary" : "Navidrome allows an authentication bypass in Subsonic API with non-existent username",
"details" : "### Summary\n\nIn certain Subsonic API endpoints, authentication can be bypassed by using a non-existent username combined with an empty (salted) password hash. This allows read-only access to the server’s resources, though attempts at write operations fail with a “permission denied” error.\n\n### Details\n\nA 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.\n\n### Proof of Concept (PoC)\n\n1. Generate a random salt:\n\n ```javascript\n // e.g., salt = \"x1vbudn1m6d\"\n Math.random().toString(36).substring(2, 15)\n ```\n\n2. Calculate the MD5 hash of an empty password plus the salt:\n\n ```shell\n # Using the example salt above\n echo -n \"x1vbudn1m6d\" | md5sum\n 81f0c0fb5d202ab0d012e6eaeb722d79 -\n ```\n\n3. Send a request specifying a fake user, with the hash and salt values:\n\n ```\n GET https://[host]/rest/getPlaylists?u=FakeUser&t=81f0c0fb5d202ab0d012e6eaeb722d79&s=x1vbudn1m6d&v=1.16.1&c=castafiore&f=json\n ```\n\n### Impact\n\nAn 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 due to insufficient permissions, limiting the impact to unauthorized viewing of information.",
"severity" : [ {
"type" : "CVSS_V4",
"score" : "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"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/navidrome/navidrome"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0.52.0"
}, {
"fixed" : "0.54.5"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/navidrome/navidrome/security/advisories/GHSA-c3p4-vm8f-386p"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-27112"
}, {
"type" : "WEB",
"url" : "https://github.com/navidrome/navidrome/commit/09ae41a2da66264c60ef307882362d2e2d8d8b89"
}, {
"type" : "WEB",
"url" : "https://github.com/navidrome/navidrome/commit/287079a9e409fb6b9708ca384d7daa7b5185c1a0"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/navidrome/navidrome"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-287" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2025-02-25T17:49:07Z",
"nvd_published_at" : "2025-02-24T19:15:14Z"
}
}