# CVE-2026-79779: rclone: rclone versions before v1.75.0 fail to reject transport downgrades in redirect handling, allowing Basic authorization...

CVE-2026-79779 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-2026-79779
- Priority: High
- CVSS: n/a (important)
- EPSS: 0.0011
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 28, 2026

## Description

rclone versions before v1.75.0 fail to reject transport downgrades in redirect handling, allowing Basic authorization and Cookie headers to be replayed over plaintext HTTP after same-host HTTPS-to-HTTP redirects. An on-path attacker observing the plaintext hop can capture and reuse credentials to perform WebDAV operations with the compromised account's permissions.

## 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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