CVE-2026-30975
HighSummary
Sonarr, oprogramowanie PVR dla użytkowników Usenet i BitTorrent, ma lukę w autoryzacji w wersjach przed 4.0.16.2942. Problem dotyczy użytkowników, którzy wyłączyli autoryzację dla lokalnych adresów, co umożliwia ominięcie zabezpieczeń, jeśli Sonarr nie jest chroniony przez reverse proxy.
Risk Assessment
Organizacje mogą być narażone na nieautoryzowany dostęp do Sonarr, co może prowadzić do wycieku danych lub nieautoryzowanego zarządzania treściami. Brak odpowiednich zabezpieczeń może skutkować poważnymi konsekwencjami dla bezpieczeństwa systemu.
Recommendation
Zaleca się aktualizację do wersji 4.0.16.2942 lub 4.0.16.2944 oraz włączenie ustawienia autoryzacji w Sonarr. Dodatkowo, należy uruchomić Sonarr za reverse proxy i unikać bezpośredniego wystawiania go na internet.
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Original NVD description (English source)
Sonarr is a PVR for Usenet and BitTorrent users. Versions prior to 4.0.16.2942 have an authentication bypass that affected users that had disabled authentication for local addresses (Authentication Required set to: `Disabled for Local Addresses`) without a reverse proxy running in front of Sonarr that didn't not pass through the invalid header. Patches are available in version 4.0.16.2942 in the nightly/develop branch and version 4.0.16.2944 for stable/main releases. Some workarounds are available. Make sure Sonarr's Authentication Required setting is set to `Enabled`, run Sonarr behind a reverse proxy, and/or do not expose Sonarr directly to the internet and instead rely on accessing it through a VPN, Tailscale or a similar solution.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

