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.
Metrics
Affected Vendors & Products
| Vendors | Products |
|---|---|
| Rclone |
|
No data.
No data.
References
History
Sun, 25 Oct 2026 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Rclone before v1.75.2 B2 Credential Leak on Redirect via --b2-download-url | |
| First Time appeared |
Rclone
Rclone rclone |
|
| Weaknesses | CWE-319 | |
| CPEs | cpe:2.3:a:rclone:rclone:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Rclone
Rclone rclone |
|
| References |
| |
| Metrics |
cvssV3_1
|
MITRE
Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-10-25T13:20:29.804Z
Updated: 2026-10-25T13:20:29.804Z
Reserved: 2026-10-25T12:27:12.266Z
Link: CVE-2026-116196
Vulnrichment
No data.
NVD
No data.
Redhat
No data.