CVE-2026-79782
Published:August 25, 2026
Updated:September 24, 2026
rclone before 1.74.4 fails to strip the X-Amz-Security-Token header when an S3 redirect changes scheme from HTTPS to HTTP on the same host. Attackers can intercept plaintext HTTP traffic to capture AWS STS session tokens sent in request headers.
Affected Packages
https://github.com/rclone/rclone.git (GITHUB):
Affected version(s) >=v0.90 <v1.74.4Fix Suggestion:
Update to version v1.74.4github.com/rclone/rclone (GO):
Affected version(s) >=v0.0.0-20140703205654-48d259da68d4 <v1.74.4Fix Suggestion:
Update to version v1.74.4Related Resources (7)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
3.1
Attack Vector
ADJACENT
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Cleartext Transmission of Sensitive Information
EPSS
Base Score:
0.13