# CVE-2026-79782: rclone: rclone before 1.74.4 fails to strip the X-Amz-Security-Token header when an S3 redirect changes scheme from HTTPS to...

CVE-2026-79782 is fixed in 3 products on 1 platform, first by ALAS2023-2026-3129, released September 28, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-79782
- Priority: High
- CVSS: n/a (important)
- EPSS: 0.0013
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 28, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | rclone amzn 2023 | 1.75.1-1.amzn2023 | [ALAS2023-2026-3129](https://patchblox.com/security/data/fix/linux/alas2023-2026-3129.md) | Sep 28, 2026 |
| Linux | rclone-debuginfo amzn 2023 | 1.75.1-1.amzn2023 | [ALAS2023-2026-3129](https://patchblox.com/security/data/fix/linux/alas2023-2026-3129.md) | Sep 28, 2026 |
| Linux | rclone-debugsource amzn 2023 | 1.75.1-1.amzn2023 | [ALAS2023-2026-3129](https://patchblox.com/security/data/fix/linux/alas2023-2026-3129.md) | Sep 28, 2026 |

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Data as of 2026-11-11T07:45:43Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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