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Advisory record · GHSA-38xv-hf3p-h7mq

rclone: source object names can escape the configured root on upload

CVSS 5.3 MediumEPSS 0.0029 · 22nd percentile

Published by the GitHub Advisory Database at 10 Sept 2026, 22:45 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/rclone/rcloneGo<1.75.11.75.1
Identifiers
GHSA-38xv-hf3p-h7mq · BIT-rclone-2026-88046 · CVE-2026-88046 · GO-2026-6457
Weakness (CWE)
CWE-22
Tags
Published
10 Sept 2026
Updated
19 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

rclone before 1.75.1 can write outside the configured root on some destinations, such as sftp and smb, when copying an object whose name contains ".." segments. An attacker must plant such an object in a source store, and the impact stays within the access the configured credentials already have. Upgrade to 1.75.1.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
5.3 Medium 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0029, the 22nd percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:13 UTC First seen by agentprime
  2. 31 Oct 2026, 14:13 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.