CVE-2026-116196: medium-severity vulnerability in rclone
Rclone before v1.75.2 B2 Credential Leak on Redirect via --b2-download-url
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6epss 0.1%
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.
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
Affected products
rclone · rcloneRelated CVEs — rclone
In the same product, most dangerous first.
CVE-2026-41176CRITICALRclone: Unauthenticated options/set allows runtime auth bypass, leading to sensitive operations and command executionEPSS 32.7%CVE-2026-41179CRITICALRClone: Unauthenticated operations/fsinfo allows attacker-controlled backend instantiation and local command executionEPSS 8.6%CVE-2026-49980CRITICALRclone: Unauthenticated command execution in `rclone rcd --rc-serve` via inline remote instantiation, bypassing CVE-2026-41179 fixEPSS 0.8%CVE-2026-88045HIGHrclone: S3 multipart declared-length memory exhaustionEPSS 0.6%CVE-2026-71310MEDIUMrclone: Unbounded HTTP CONNECT Response Headers Can Exhaust rclone MemoryEPSS 0.6%CVE-2026-59733HIGHrclone `serve restic --private-repos` authorization bypass: `..` in the URL path lets an authenticated user read, overwrite and delete other users' repositoriesEPSS 0.6%