CVE-2026-79782 PUBLISHED

rclone before 1.74.4 Security Token Disclosure via HTTPS to HTTP Redirect

Assigner: VulnCheck
Reserved: 25.08.2026 Published: 25.08.2026 Updated: 25.08.2026

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.

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 9.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS Score: 3.1

Attack Vector	Adjacent Network	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	Low
Privileges Required	None	Integrity Impact	None
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	rclone
Product	rclone
Versions	Default: unaffected affected from 0 to 1.74.4 (excl.) Version 1.74.4 is unaffected

CVE-2026-79782 PUBLISHED

rclone before 1.74.4 Security Token Disclosure via HTTPS to HTTP Redirect

Metrics

Product Status

Credits

References

Problem Types