{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-116196","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-10-25T12:27:12.266Z","datePublished":"2026-10-25T13:20:29.804Z","dateUpdated":"2026-10-25T13:20:29.804Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-10-25T13:20:29.804Z"},"datePublic":"2026-10-09T00:00:00.000Z","title":"Rclone before v1.75.2 B2 Credential Leak on Redirect via --b2-download-url","descriptions":[{"lang":"en","value":"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."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Cleartext Transmission of Sensitive Information","cweId":"CWE-319","type":"CWE"}]}],"affected":[{"vendor":"rclone","product":"rclone","defaultStatus":"unaffected","packageURL":"pkg:golang/github.com/rclone/rclone","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"1.75.2"},{"version":"1.75.2","status":"unaffected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:rclone:rclone:*:*:*:*:*:*:*:*","versionEndExcluding":"1.75.2"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"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","attackVector":"ADJACENT","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","attackVector":"ADJACENT_NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/rclone/rclone/security/advisories/GHSA-gpw7-77cq-9f72","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-gpw7-77cq-9f72)"},{"name":"VulnCheck Advisory: Rclone before v1.75.2 B2 Credential Leak on Redirect via --b2-download-url","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/rclone-before-1.75.2-b2-credential-leak-on-redirect-via-b2-download-url"}],"credits":[{"lang":"en","value":"sonicnew","type":"reporter"},{"lang":"en","value":"iaohkut","type":"reporter"},{"lang":"en","value":"ncw","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}}}}