CVE-2026-116196: rclone rclone

CVSS 6.0 (medium) · published 2026-10-25

Rclone before v1.75.2 contains a credential exposure vulnerability in the b2 backend that leaks the live account Authorization token and SSE-C keys on HTTP redirects from --b2-download-url hosts. Attackers can observe a same-host HTTPS-to-HTTP downgrade redirect to capture the cleartext B2 token, or receive cross-host redirects disclosing SSE-C customer encryption keys.

Affected products (NVD): rclone rclone

Fixed in (NVD): 1.75.2

Weakness: CWE-319

Source: NVD CVE-2026-116196

References

• https://github.com/rclone/rclone/security/advisories/GHSA-gpw7-77cq-9f72
• https://www.vulncheck.com/advisories/rclone-before-1.75.2-b2-credential-leak-on-redirect-via-b2-download-url

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