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I. Basic Information for CVE-2026-30976
Vulnerability Information

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Vulnerability Title
Sonarr Path Traversal vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Sonarr is a PVR for Usenet and BitTorrent users. In versions on the 4.x branch prior to 4.0.17.2950, an unauthenticated remote attacker can potentially read any file readable by the Sonarr process. These include application configuration files (containing API keys and database credentials), Windows system files, and any user-accessible files on the same drive This issue only impacts Windows systems; macOS and Linux are unaffected. Files returned from the API were not limited to the directory on disk they were intended to be served from. This problem has been patched in 4.0.17.2950 in the nightly/develop branch or 4.0.17.2952 for stable/main releases. It's possible to work around the issue by only hosting Sonarr on a secure internal network and accessing it via VPN, Tailscale or similar solution outside that network.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Sonarr 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sonarr是Sonarr公司的一款可帮助查找、下载和组织电视节目的软件。 Sonarr 4.0.17.2950之前版本存在路径遍历漏洞,该漏洞源于API未限制文件访问目录,可能导致未经身份验证的远程攻击者读取任意文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
SonarrSonarr >= 4.0, < 4.0.17.2950 -
II. Public POCs for CVE-2026-30976
#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
kimi-k2.5 · 10000 chars
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III. Intelligence Information for CVE-2026-30976
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IV. Related Vulnerabilities
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