What is CVE-2026-79782?

CVE-2026-79782 is a low-severity vulnerability in Rclone, classified under Cleartext Transmission of Sensitive Information. CVSS score: 3.1/10. Published 2026-08-25.

How severe is CVE-2026-79782?

Low severity. CVSS v3 base score is 3.1 out of 10.

Vulnerability in Rclone

CVE-2026-79782

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 v3 metric

CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Rclone

Weakness classification (CWE)

CWE-319 — Cleartext Transmission of Sensitive Information

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-79782?: CVE-2026-79782 is a low-severity vulnerability in Rclone, classified under Cleartext Transmission of Sensitive Information. CVSS score: 3.1/10. Published 2026-08-25.
How severe is CVE-2026-79782?: Low severity. CVSS v3 base score is 3.1 out of 10.