{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-55189", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-16T15:20:43.086Z", "datePublished": "2026-06-26T19:59:13.870Z", "dateUpdated": "2026-06-29T15:20:13.295Z"}, "containers": {"cna": {"title": "RustFS: FTP frontend skips IAM authorization on object reads", "problemTypes": [{"descriptions": [{"cweId": "CWE-862", "lang": "en", "description": "CWE-862: Missing Authorization", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-863", "lang": "en", "description": "CWE-863: Incorrect Authorization", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/rustfs/rustfs/security/advisories/GHSA-3g29-xff2-92vp", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/rustfs/rustfs/security/advisories/GHSA-3g29-xff2-92vp"}], "affected": [{"vendor": "rustfs", "product": "rustfs", "versions": [{"version": ">= 1.0.0-alpha.1, <= 1.0.0-beta.8", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-26T19:59:13.870Z"}, "descriptions": [{"lang": "en", "value": "RustFS is a distributed object storage system built in Rust. From 1.0.0-alpha.1 until 1.0.0-beta.9, when the FTP frontend is enabled, the FTP read and probe handlers dispatch directly to the storage backend without ever calling the IAM authorization function that the FTP write/list handlers (and the entire HTTP S3 path) use. As a result, any user who can authenticate to the FTP listener \u2014 including a user whose IAM policy contains an explicit Deny on s3:GetObject \u2014 can read (RETR) and stat (SIZE/MDTM) any object in any bucket, and probe any bucket (CWD), completely regardless of their IAM policy. This vulnerability is fixed in 1.0.0-beta.9."}], "source": {"advisory": "GHSA-3g29-xff2-92vp", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/rustfs/rustfs/security/advisories/GHSA-3g29-xff2-92vp", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-29T15:03:31.819221Z", "id": "CVE-2026-55189", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-29T15:20:13.295Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-55189", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-29T15:03:31.819221Z"}}}], "references": [{"url": "https://github.com/rustfs/rustfs/security/advisories/GHSA-3g29-xff2-92vp", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-29T15:03:47.420Z"}}], "cna": {"title": "RustFS: FTP frontend skips IAM authorization on object reads", "source": {"advisory": "GHSA-3g29-xff2-92vp", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.7, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "rustfs", "product": "rustfs", "versions": [{"status": "affected", "version": ">= 1.0.0-alpha.1, <= 1.0.0-beta.8"}]}], "references": [{"url": "https://github.com/rustfs/rustfs/security/advisories/GHSA-3g29-xff2-92vp", "name": "https://github.com/rustfs/rustfs/security/advisories/GHSA-3g29-xff2-92vp", "tags": ["x_refsource_CONFIRM"]}], "descriptions": [{"lang": "en", "value": "RustFS is a distributed object storage system built in Rust. From 1.0.0-alpha.1 until 1.0.0-beta.9, when the FTP frontend is enabled, the FTP read and probe handlers dispatch directly to the storage backend without ever calling the IAM authorization function that the FTP write/list handlers (and the entire HTTP S3 path) use. As a result, any user who can authenticate to the FTP listener \u2014 including a user whose IAM policy contains an explicit Deny on s3:GetObject \u2014 can read (RETR) and stat (SIZE/MDTM) any object in any bucket, and probe any bucket (CWD), completely regardless of their IAM policy. This vulnerability is fixed in 1.0.0-beta.9."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-862", "description": "CWE-862: Missing Authorization"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-863", "description": "CWE-863: Incorrect Authorization"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-26T19:59:13.870Z"}}}, "cveMetadata": {"cveId": "CVE-2026-55189", "state": "PUBLISHED", "dateUpdated": "2026-06-29T15:20:13.295Z", "dateReserved": "2026-06-16T15:20:43.086Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-06-26T19:59:13.870Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.0.0-alpha.1,1.0.0-beta.8]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "rustfs", "source": "cna", "vendor": "rustfs"}, "product": "rustfs", "vendor": "rustfs"}], "created": "2026-06-26T22:30:04.060037+00:00", "updated": "2026-06-27T03:45:10.440169+00:00", "vendors": ["rustfs", "rustfs$PRODUCT$rustfs"]}