CVE-2026-59733Public exploitNetwork attack vector

Cross-tenant repository access via uncanonicalized URL paths

Published Jul 14, 2026 · Updated Jul 14, 2026

Path traversal in Rclone rclone before 1.74.4 allows remote authenticated users to read, overwrite, or delete other users' repositories. The WithRemote middleware constructs backend object keys from an uncleaned URL path while checkPrivate authorizes only the routed user segment, allowing dot-dot components to cross tenant prefixes. Exploitation requires private-repository mode and a backend that canonicalizes path components; append-only mode blocks writes and deletion but not reads.

CVSS severity8.8
High
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Rclone rclone before 1.74.4 allows remote authenticated users to read, overwrite, or delete other users' repositories. The WithRemote middleware constructs backend object keys from an uncleaned URL path while checkPrivate authorizes only the routed user segment, allowing dot-dot components to cross tenant prefixes. Exploitation requires private-repository mode and a backend that canonicalizes path components; append-only mode blocks writes and deletion but not reads.

The record

CVE
CVE-2026-59733
Published
Jul 14, 2026
Updated
Jul 14, 2026
Vendor
Rclone
Product
rclone
Classifications
CWE-639, CWE-22, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.74.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Rclone · rcloneversion=< 1.74.4

Published CVSS scores

8.8GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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