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CVE-2026-79779 Details

Description

rclone versions before v1.75.0 fail to reject transport downgrades in redirect handling, allowing Basic authorization and Cookie headers to be replayed over plaintext HTTP after same-host HTTPS-to-HTTP redirects. An on-path attacker observing the plaintext hop can capture and reuse credentials to perform WebDAV operations with the compromised account's permissions.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/rclone/rclone/security/advisories/GHSA-h4mf-4v27-hggj	[email protected]
https://www.vulncheck.com/advisories/rclone-before-webdav-credential-exposure-via-https-to-http-redirect	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-319	Cleartext Transmission of Sensitive Information	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

3 change records found show changes

Date	Action	Recorded By
Aug 27, 2026	CVE Modified	[email protected]
Aug 27, 2026	CVE Modified	CISA-ADP
Aug 25, 2026	New CVE Received	[email protected]