Cleanuparr: X-Forwarded-For leftmost parsing allows remote unauthenticated admin takeover when reverse-proxy mode is enabled
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| Cleanuparr | Cleanuparr | affected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||
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| Cleanuparr | Cleanuparr |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.222% probability within 30 days)
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ssvc
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| First Time appeared |
Cleanuparr
Cleanuparr cleanuparr |
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| Vendors & Products |
Cleanuparr
Cleanuparr cleanuparr |
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| Description | Cleanuparr is a tool for automating the cleanup of unwanted or blocked files in Sonarr, Radarr, and supported download clients like qBittorrent. Prior to 2.9.10, TrustedNetworkAuthenticationHandler.ResolveClientIp parses the leftmost entry of the X-Forwarded-For header as the client IP. That entry is attacker-controlled — X-Forwarded-For is append-only, so the leftmost value is whatever the original HTTP client claimed. By sending a spoofed local IP in the header, an unauthenticated remote attacker passes the trusted-network check and is logged in as the Cleanuparr administrator. This vulnerability is fixed in 2.9.10. | |
| Title | Cleanuparr: X-Forwarded-For leftmost parsing allows remote unauthenticated admin takeover when reverse-proxy mode is enabled | |
| Weaknesses | CWE-290 CWE-348 |
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| References |
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| Metrics |
cvssV3_1
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