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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:golang/github.com/rclone/rclone", "product": "rclone", "vendor": "rclone", "versions": [{"lessThan": "1.75.2", "status": "affected", "version": "0", "versionType": "semver"}, {"status": "unaffected", "version": "1.75.2", "versionType": "semver"}]}], "source": "[email protected]"}], "cveTags": [], "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."}], "id": "CVE-2026-116196", "lastModified": "2026-10-26T14:08:16.917", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 3.6, "source": "[email protected]", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "attackVector": "ADJACENT", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.0, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "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/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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-10-25T14:17:00.133", "references": [{"source": "[email protected]", "url": "https://github.com/rclone/rclone/security/advisories/GHSA-gpw7-77cq-9f72"}, {"source": "[email protected]", "url": "https://www.vulncheck.com/advisories/rclone-before-1.75.2-b2-credential-leak-on-redirect-via-b2-download-url"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-319"}], "source": "[email protected]", "type": "Primary"}]}

{"bugzilla": {"description": "github.com/rclone/rclone: rclone: Information disclosure via HTTP redirects in B2 backend", "id": "2560422", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2560422"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-201", "details": ["A flaw was found in Rclone. This vulnerability allows information disclosure due to improper handling of HTTP redirects within the Backblaze B2 storage backend. When download requests are redirected, the client inadvertently forwards sensitive account authorization tokens and Server-Side Encryption with Customer-Provided Keys (SSE-C). An attacker positioned on an adjacent network or controlling a redirect destination can intercept these credentials to gain unauthorized access to protected cloud storage resources."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2026-116196", "package_state": [{"cpe": "cpe:/a:redhat:cryostat:4", "fix_state": "Fix deferred", "package_name": "cryostat/cryostat-storage-rhel9", "product_name": "Cryostat 4"}, {"cpe": "cpe:/a:redhat:acm:2", "fix_state": "Fix deferred", "package_name": "rhacm2/volsync-rhel9", "product_name": "Red Hat Advanced Cluster Management for Kubernetes 2"}], "public_date": "2026-10-25T13:20:29Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-116196\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-116196\nhttps://github.com/rclone/rclone/security/advisories/GHSA-gpw7-77cq-9f72\nhttps://www.vulncheck.com/advisories/rclone-before-1.75.2-b2-credential-leak-on-redirect-via-b2-download-url"], "statement": "This vulnerability is rated as Moderate severity because exploitation requires network adjacency to inspect downgraded traffic or control over HTTP redirect targets, and is limited to specific Backblaze B2 configurations using custom download endpoints. In Red Hat products such as Cryostat and Red Hat Advanced Cluster Management for Kubernetes (via VolSync), rclone is bundled as a utility to facilitate remote data replication and storage interactions. Typical deployments communicate directly with cloud providers over encrypted HTTPS connections, meaning authorization credentials and customer-supplied encryption keys are not exposed unless an administrator explicitly configures custom redirecting download URLs.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.75.2)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "1.75.2"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "rclone", "source": "cna", "vendor": "rclone"}, "product": "rclone", "vendor": "rclone"}], "created": "2026-10-25T17:00:17.452754+00:00", "updated": "2026-10-26T13:30:08.853264+00:00", "vendors": ["rclone", "rclone$PRODUCT$rclone"]}