Vulnerability · Published Aug 25, 2026 · Assigned by VulnCheck
CVE-2026-79782rclone before 1.74.4 Security Token Disclosure via HTTPS to HTTP Redirect
Low 3.1
In plain English
A low-severity security flaw in rclone from rclone. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)3.1Low
Exploit odds (30 days)0.1%top 97.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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 & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | rclone | no fix listed | DEBIAN-CVE-2026-79782 |
| Debian:13 | rclone | no fix listed | DEBIAN-CVE-2026-79782 |
| Go | github.com/rclone/rclone | 1.74.4 | GHSA-gx4c-2hqx-cw2r |
| Go | github.com/rclone/rclone | 1.74.4 | GO-2026-6196 |
| Ubuntu:26.10 | rclone | no fix listed | UBUNTU-CVE-2026-79782 |
Affected products (as reported)
Weakness: CWE-319 · Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
References
- GitHub Security Advisory (GHSA-gx4c-2hqx-cw2r) vendor-advisory
- VulnCheck Advisory: rclone before 1.74.4 Security Token Disclosure via HTTPS to HTTP Redirect third-party-advisory