CVE-2025-43916: Sonos Api.sonos.com

Low severity, CVSS 3.4. EPSS: 0.2% chance of exploitation in the next 30 days.

Sonos api.sonos.com through 2025-04-21, when the /login/v3/oauth endpoint is used, accepts a redirect_uri containing userinfo in the authority component, which is not consistent with RFC 6819 section 5.2.3.5. An authorization code may be sent to an attacker-controlled destination. This might have further implications in conjunction with "Decompiling the app revealed a hardcoded secret."

Affected products

• Sonos Api.sonos.com: up to and including 2025-04-21

Published 2025-04-21. Last modified 2026-06-17.