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.

High
CVSS
n/a
important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0011
1st percentile

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

ProductFixed inFixReleased
Linux
rclone · amzn 2023 1.75.1-1.amzn2023 ALAS2023-2026-3129 Sep 28, 2026
rclone-debuginfo · amzn 2023 1.75.1-1.amzn2023 ALAS2023-2026-3129 Sep 28, 2026
rclone-debugsource · amzn 2023 1.75.1-1.amzn2023 ALAS2023-2026-3129 Sep 28, 2026

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