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VULNERABILITIES

CVE-2026-79780 Details

Description

rclone before v1.75.0 fails to sanitize IBM IAM bearer tokens and SSE-C encryption keys during S3 redirect callbacks, allowing credentials to be preserved across scheme or host changes. Attackers observing network traffic from a trusted endpoint can capture reusable IBM IAM tokens on same-host HTTPS-to-HTTP downgrades or SSE-C keys on cross-origin redirects to access protected S3 objects.

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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URLSource(s)Tag(s)
https://github.com/rclone/rclone/security/advisories/GHSA-8mxv-9xhp-86h4 CISA-ADP
https://github.com/rclone/rclone/security/advisories/GHSA-8mxv-9xhp-86h4 [email protected]
https://www.vulncheck.com/advisories/rclone-before-credential-exposure-via-s3-redirect [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-200Exposure of Sensitive Information to an Unauthorized Actor[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-79780
NVD Published Date:
Aug 25, 2026
NVD Last Modified:
Sep 10, 2026
Source:
[email protected]
CVE-2026-79780 Details - Not Deferred