CVE-2026-79781

MediumCVSS 6.5/10Last modified Sep 10, 2026

Description

rclone serve s3 before 1.74.4 contains a path traversal vulnerability that allows attackers to read and overwrite root-level files by using dot-dot segments in S3 object keys. Attackers can send requests with object keys like ../root-secret.txt to escape the bucket namespace and access files in the serve root directory.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Weakness enumeration

CWE-22

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
rclone	rclone	< 1.74.4

References

Timeline

Published: Aug 25, 2026
Last modified: Sep 10, 2026
NVD status: Awaiting Analysis

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