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CVE-2026-79782

rclone before 1.74.4 Security Token Disclosure via HTTPS to HTTP Redirect

CVSS 4.0 9.3 CRITICALCVSS 3.1 3.1 LOWCheck source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-79782

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-79782

Published

rclone

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "rclone",
                    "product": "rclone",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:golang/github.com/rclone/rclone",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThan": "1.74.4"
                        },
                        {
                            "version": "1.74.4",
                            "status": "unaffected",
                            "versionType": "semver"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON