# CVE-2026-79779

## Summary

- **CVE ID:** CVE-2026-79779
- **Severity:** MEDIUM
- **CVSS Score:** 6 (CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-319
- **Published:** Aug 25, 2026
- **Last Modified:** Aug 27, 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.

## Affected Products

- rclone — rclone (0)
- rclone — rclone (1.75.0)

## References

- [CNA](https://github.com/rclone/rclone/security/advisories/GHSA-h4mf-4v27-hggj)
- [CNA](https://www.vulncheck.com/advisories/rclone-before-webdav-credential-exposure-via-https-to-http-redirect)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.11%
- **EPSS Percentile:** 1.3

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._