{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-78122", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-08-22T22:56:18.102Z", "datePublished": "2026-08-22T23:06:32.896Z", "dateUpdated": "2026-08-22T23:06:32.896Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-08-22T23:06:32.896Z"}, "datePublic": "2026-08-15T00:00:00.000Z", "title": "docker-socket-proxy through 0.5.0 Insufficient Access Control Granularity Exposes Container Filesystems", "descriptions": [{"lang": "en", "value": "docker-socket-proxy fails to properly gate read endpoints in the /containers Docker API namespace when the CONTAINERS environment variable is set. Attackers can use GET requests to /containers/{id}/archive, /containers/{id}/export, /containers/{id}/logs, and /containers/{id}/top to read arbitrary files and download entire container filesystems as tar archives."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Insufficient Granularity of Access Control", "cweId": "CWE-1220", "type": "CWE"}]}], "affected": [{"vendor": "Tecnativa", "product": "docker-socket-proxy", "defaultStatus": "unaffected", "packageURL": "pkg:docker/tecnativa/docker-socket-proxy", "collectionURL": "https://hub.docker.com/r/tecnativa/docker-socket-proxy", "versions": [{"version": "0", "lessThanOrEqual": "0.5.0", "status": "affected", "versionType": "semver"}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N", "attackVector": "ADJACENT", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.3, "baseSeverity": "HIGH"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseScore": 7.4, "baseSeverity": "HIGH"}}], "references": [{"url": "https://github.com/Tecnativa/docker-socket-proxy/issues/182", "tags": ["issue-tracking"], "name": "GitHub Issue #182"}, {"url": "https://github.com/Tecnativa/docker-socket-proxy", "tags": ["product"]}, {"url": "https://github.com/Tecnativa/docker-socket-proxy/blob/v0.5.0/haproxy.cfg#L49-L61", "tags": ["technical-description"]}, {"url": "https://github.com/Tecnativa/docker-socket-proxy/pull/183", "tags": ["issue-tracking"]}, {"url": "https://gist.github.com/nedlir/e4f52f88a757f02c67db1fd5dd70d732", "tags": ["exploit"]}, {"name": "VulnCheck Advisory: docker-socket-proxy through 0.5.0 Insufficient Access Control Granularity Exposes Container Filesystems", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/docker-socket-proxy-through-insufficient-access-control-granularity-exposes-container-filesystems"}], "credits": [{"lang": "en", "value": "nedlir", "type": "reporter"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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{"affected": [{"affectedData": [{"collectionURL": "https://hub.docker.com/r/tecnativa/docker-socket-proxy", "defaultStatus": "unaffected", "packageURL": "pkg:docker/tecnativa/docker-socket-proxy", "product": "docker-socket-proxy", "vendor": "Tecnativa", "versions": [{"lessThanOrEqual": "0.5.0", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "docker-socket-proxy fails to properly gate read endpoints in the /containers Docker API namespace when the CONTAINERS environment variable is set. Attackers can use GET requests to /containers/{id}/archive, /containers/{id}/export, /containers/{id}/logs, and /containers/{id}/top to read arbitrary files and download entire container filesystems as tar archives."}], "id": "CVE-2026-78122", "lastModified": "2026-08-22T23:16:22.923", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "NONE", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 4.0, "source": "[email protected]", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "ADJACENT", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.3, "baseSeverity": "HIGH", "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": "HIGH", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/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": "2026-08-22T23:16:22.923", "references": [{"source": "[email protected]", "url": "https://gist.github.com/nedlir/e4f52f88a757f02c67db1fd5dd70d732"}, {"source": "[email protected]", "url": "https://github.com/Tecnativa/docker-socket-proxy"}, {"source": "[email protected]", "url": "https://github.com/Tecnativa/docker-socket-proxy/blob/v0.5.0/haproxy.cfg#L49-L61"}, {"source": "[email protected]", "url": "https://github.com/Tecnativa/docker-socket-proxy/issues/182"}, {"source": "[email protected]", "url": "https://github.com/Tecnativa/docker-socket-proxy/pull/183"}, {"source": "[email protected]", "url": "https://www.vulncheck.com/advisories/docker-socket-proxy-through-insufficient-access-control-granularity-exposes-container-filesystems"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1220"}], "source": "[email protected]", "type": "Primary"}]}

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