CVE-2026-47187

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-47187", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-18T22:07:37.435Z", "datePublished": "2026-08-19T14:41:57.512Z", "dateUpdated": "2026-08-20T18:29:10.307Z"}, "containers": {"cna": {"title": "SSHFS Symlink Escape: Rogue SFTP Server \u2192 Local File Read/Write", "problemTypes": [{"descriptions": [{"cweId": "CWE-59", "lang": "en", "description": "CWE-59: Improper Link Resolution Before File Access ('Link Following')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.3, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/libfuse/sshfs/security/advisories/GHSA-pjv6-2c3f-r357", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/libfuse/sshfs/security/advisories/GHSA-pjv6-2c3f-r357"}, {"name": "https://github.com/libfuse/sshfs/pull/361", "tags": ["x_refsource_MISC"], "url": "https://github.com/libfuse/sshfs/pull/361"}, {"name": "https://github.com/libfuse/sshfs/commit/bcd132f17ccf1b8592a229df797c9b08883fec26", "tags": ["x_refsource_MISC"], "url": "https://github.com/libfuse/sshfs/commit/bcd132f17ccf1b8592a229df797c9b08883fec26"}, {"name": "https://github.com/libfuse/sshfs/releases/tag/sshfs-3.7.6", "tags": ["x_refsource_MISC"], "url": "https://github.com/libfuse/sshfs/releases/tag/sshfs-3.7.6"}], "affected": [{"vendor": "libfuse", "product": "sshfs", "versions": [{"version": "< 3.7.6", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-19T14:41:57.512Z"}, "descriptions": [{"lang": "en", "value": "SSHFS is a network filesystem client for connecting to SSH servers. Prior to version 3.7.6, a rogue SFTP server can return absolute symlink targets or relative targets containing parent-directory components that SSHFS passes through FUSE for resolution by the client kernel against the local filesystem. The documented transform_symlinks mitigation does not contain relative targets because transform_symlink() returns early at sshfs.c:2181, while sshfs_readlink() at sshfs.c:2234 to sshfs.c:2236 otherwise copies the server-supplied link target to the kernel. A victim or victim-side tool that follows such a link through ordinary operations such as cp, rsync, backup tooling, or an editor can disclose readable local files back to the server or write server-controlled content to writable local files, potentially including startup or scheduled-task files. This issue is fixed in version 3.7.6."}], "source": {"advisory": "GHSA-pjv6-2c3f-r357", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-20T03:56:49.576196Z", "id": "CVE-2026-47187", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-20T18:29:10.307Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-47187", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-08-20T03:56:49.576196Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-20T18:29:07.908Z"}}], "cna": {"title": "SSHFS Symlink Escape: Rogue SFTP Server \u2192 Local File Read/Write", "source": {"advisory": "GHSA-pjv6-2c3f-r357", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.3, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "libfuse", "product": "sshfs", "versions": [{"status": "affected", "version": "< 3.7.6"}]}], "references": [{"url": "https://github.com/libfuse/sshfs/security/advisories/GHSA-pjv6-2c3f-r357", "name": "https://github.com/libfuse/sshfs/security/advisories/GHSA-pjv6-2c3f-r357", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/libfuse/sshfs/pull/361", "name": "https://github.com/libfuse/sshfs/pull/361", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/libfuse/sshfs/commit/bcd132f17ccf1b8592a229df797c9b08883fec26", "name": "https://github.com/libfuse/sshfs/commit/bcd132f17ccf1b8592a229df797c9b08883fec26", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/libfuse/sshfs/releases/tag/sshfs-3.7.6", "name": "https://github.com/libfuse/sshfs/releases/tag/sshfs-3.7.6", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "SSHFS is a network filesystem client for connecting to SSH servers. Prior to version 3.7.6, a rogue SFTP server can return absolute symlink targets or relative targets containing parent-directory components that SSHFS passes through FUSE for resolution by the client kernel against the local filesystem. The documented transform_symlinks mitigation does not contain relative targets because transform_symlink() returns early at sshfs.c:2181, while sshfs_readlink() at sshfs.c:2234 to sshfs.c:2236 otherwise copies the server-supplied link target to the kernel. A victim or victim-side tool that follows such a link through ordinary operations such as cp, rsync, backup tooling, or an editor can disclose readable local files back to the server or write server-controlled content to writable local files, potentially including startup or scheduled-task files. This issue is fixed in version 3.7.6."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-59", "description": "CWE-59: Improper Link Resolution Before File Access ('Link Following')"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-19T14:41:57.512Z"}}}, "cveMetadata": {"cveId": "CVE-2026-47187", "state": "PUBLISHED", "dateUpdated": "2026-08-20T18:29:10.307Z", "dateReserved": "2026-05-18T22:07:37.435Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-08-19T14:41:57.512Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "sshfs", "vendor": "libfuse", "versions": [{"status": "affected", "version": "< 3.7.6"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "SSHFS is a network filesystem client for connecting to SSH servers. Prior to version 3.7.6, a rogue SFTP server can return absolute symlink targets or relative targets containing parent-directory components that SSHFS passes through FUSE for resolution by the client kernel against the local filesystem. The documented transform_symlinks mitigation does not contain relative targets because transform_symlink() returns early at sshfs.c:2181, while sshfs_readlink() at sshfs.c:2234 to sshfs.c:2236 otherwise copies the server-supplied link target to the kernel. A victim or victim-side tool that follows such a link through ordinary operations such as cp, rsync, backup tooling, or an editor can disclose readable local files back to the server or write server-controlled content to writable local files, potentially including startup or scheduled-task files. This issue is fixed in version 3.7.6."}], "id": "CVE-2026-47187", "lastModified": "2026-09-09T21:13:25.910", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.3, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.8, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-47187", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-20T03:56:49.576196Z", "version": "2.0.3"}}]}, "published": "2026-08-19T15:17:05.310", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/libfuse/sshfs/commit/bcd132f17ccf1b8592a229df797c9b08883fec26"}, {"source": "security-advisories@github.com", "url": "https://github.com/libfuse/sshfs/pull/361"}, {"source": "security-advisories@github.com", "url": "https://github.com/libfuse/sshfs/releases/tag/sshfs-3.7.6"}, {"source": "security-advisories@github.com", "url": "https://github.com/libfuse/sshfs/security/advisories/GHSA-pjv6-2c3f-r357"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-59"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.7.6)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "sshfs", "source": "cna", "vendor": "libfuse"}, "product": "sshfs", "vendor": "libfuse"}], "created": "2026-08-19T17:30:16.569527+00:00", "updated": "2026-08-20T16:00:05.175968+00:00", "vendors": ["libfuse", "libfuse$PRODUCT$sshfs"]}