CVE-2026-79782 rclone before 1.74.4 Security Token Disclosure via HTTPS to HTTP Redirect
Attackers can intercept AWS STS session tokens when rclone redirects from HTTPS to HTTP, allowing unauthorized access to cloud resources.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-79782?
CVE-2026-79782 is a critical vulnerability in rclone, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
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.
Weakness: CWE-319
Which versions are affected by CVE-2026-79782?
4 open source packages ship an affected version, including github.com/rclone/rclone and rclone.
| Package | Affected | Fixed in |
|---|---|---|
github.com/rclone/rclone Go | All versions | 1.74.4 |
github.com/rclone/rclone Go | All versions | 1.74.4 |
github.com/rclone/rclone Go | All versions | 1.74.4 |
rclone Bitnami | All versions | 1.74.4 |
How do I fix CVE-2026-79782?
Upgrade github.com/rclone/rclone to 1.74.4 or later.
Is CVE-2026-79782 being exploited?
There is no known exploitation of CVE-2026-79782 in the wild and no public exploit code.
Sources
Also known as BIT-rclone-2026-79782, DEBIAN-CVE-2026-79782, GHSA-gx4c-2hqx-cw2r, GHSA-mwgh-564g-j9ww, GO-2026-6196, MINI-6f9c-cch7-qwxm and 6 more.