Vulnerability Details CVE-2026-116187
Rclone from v1.68.0 before v1.75.2 contains an authorization bypass vulnerability in serve s3 --auth-proxy that allows authenticated tenants to manipulate other tenants' multipart uploads by referencing their upload IDs. Attackers who learn a victim's bucket, object, and upload ID can inject parts, complete, or abort in-flight uploads and view upload and object metadata across tenants.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 4.2%
CVSS Severity
CVSS v3 Score 5.0
Products affected by CVE-2026-116187
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cpe:2.3:a:rclone:rclone:1.68.0
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cpe:2.3:a:rclone:rclone:1.68.1
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cpe:2.3:a:rclone:rclone:1.68.2
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cpe:2.3:a:rclone:rclone:1.69.0
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cpe:2.3:a:rclone:rclone:1.69.1
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cpe:2.3:a:rclone:rclone:1.69.2
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cpe:2.3:a:rclone:rclone:1.69.3
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cpe:2.3:a:rclone:rclone:1.70.0
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cpe:2.3:a:rclone:rclone:1.70.1
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cpe:2.3:a:rclone:rclone:1.70.2
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cpe:2.3:a:rclone:rclone:1.70.3
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cpe:2.3:a:rclone:rclone:1.71.0
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cpe:2.3:a:rclone:rclone:1.71.1
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cpe:2.3:a:rclone:rclone:1.71.2
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cpe:2.3:a:rclone:rclone:1.72.0
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cpe:2.3:a:rclone:rclone:1.72.1
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cpe:2.3:a:rclone:rclone:1.73.0
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cpe:2.3:a:rclone:rclone:1.73.1
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cpe:2.3:a:rclone:rclone:1.73.2
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cpe:2.3:a:rclone:rclone:1.73.3
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cpe:2.3:a:rclone:rclone:1.73.4
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cpe:2.3:a:rclone:rclone:1.73.5
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cpe:2.3:a:rclone:rclone:1.74.0
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cpe:2.3:a:rclone:rclone:1.74.1
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cpe:2.3:a:rclone:rclone:1.74.2
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cpe:2.3:a:rclone:rclone:1.74.3
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cpe:2.3:a:rclone:rclone:1.74.4
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cpe:2.3:a:rclone:rclone:1.75.0
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cpe:2.3:a:rclone:rclone:1.75.1