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CVE-2026-116196

6.0 medium Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 7

  1. Cpes+1 CPE criteria (now 1)NVD modified 2026-10-27 14:12
  2. StatusAwaiting Analysis → AnalyzedNVD modified 2026-10-27 14:12
  3. StatusPublished → Awaiting AnalysisNVD modified 2026-10-26 14:08
  4. StatusReceived → PublishedNVD modified 2026-10-25 13:20
  5. StatusPublished → ReceivedNVD modified 2026-10-25 14:17
  6. CVSS6.0 (v4.0, 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) → 6.0 (v4.0, 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)NVD modified 2026-10-25 14:17
  7. First seenCVSS 6.0 · rcloneNVD modified 2026-10-25 13:20

Affected (CPE criteria) 1

  • cpe:2.3:a:rclone:rclone:*:*:*:*:*:*:*:*

References 2