CVE-2026-79782

EUVD-2026-65540
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
3.1 LOW
ADJACENT_NETWORK
HIGH
NONE
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
rclonerclone
𝑥
< 1.74.4
CNA
Common Weakness Enumeration
References
https://github.com/rclone/rclone/security/advisories/GHSA-gx4c-2hqx-cw2r
https://www.vulncheck.com/advisories/rclone-before-security-token-disclosure-via-https-to-http-redirect