{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-58403", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-30T18:19:58.379Z", "datePublished": "2026-07-06T19:25:45.971Z", "dateUpdated": "2026-07-06T20:51:27.624Z"}, "containers": {"cna": {"title": "Hugo symlink confinement bypass in os.ReadFile", "problemTypes": [{"descriptions": [{"cweId": "CWE-59", "lang": "en", "description": "CWE-59: Improper Link Resolution Before File Access ('Link Following')", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/gohugoio/hugo/security/advisories/GHSA-c3wq-j5vh-68rc", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/gohugoio/hugo/security/advisories/GHSA-c3wq-j5vh-68rc"}, {"name": "https://github.com/gohugoio/hugo/pull/15020", "tags": ["x_refsource_MISC"], "url": "https://github.com/gohugoio/hugo/pull/15020"}, {"name": "https://github.com/gohugoio/hugo/commit/cf9c8f93ca2a2838ce378f9e36d052ac2f79e229", "tags": ["x_refsource_MISC"], "url": "https://github.com/gohugoio/hugo/commit/cf9c8f93ca2a2838ce378f9e36d052ac2f79e229"}, {"name": "https://github.com/gohugoio/hugo/releases/tag/v0.163.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/gohugoio/hugo/releases/tag/v0.163.1"}], "affected": [{"vendor": "gohugoio", "product": "hugo", "versions": [{"version": ">= 0.123.0, < 0.163.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-06T19:25:45.971Z"}, "descriptions": [{"lang": "en", "value": "Hugo is a static site generator. From v0.123.0 through v0.163.0, Hugo's virtual filesystem is designed so that files under a mount cannot reach outside the mount tree, but a regression caused RootMappingFs.statRoot to call Stat, which follows symlinks, instead of Lstat, so a direct os.ReadFile \"somefile\" where somefile was a symlink pointing outside the mount would return the target's contents. This effectively let a symlink planted inside a theme or local mount read arbitrary files reachable to the user running hugo. This issue is fixed in v0.163.1."}], "source": {"advisory": "GHSA-c3wq-j5vh-68rc", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-06T20:51:16.911843Z", "id": "CVE-2026-58403", "options": [{"Exploitation": "none"}, {"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": "2026-07-06T20:51:27.624Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-58403", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-06T20:51:16.911843Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-06T20:51:24.283Z"}}], "cna": {"title": "Hugo symlink confinement bypass in os.ReadFile", "source": {"advisory": "GHSA-c3wq-j5vh-68rc", "discovery": "UNKNOWN"}, "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N", "userInteraction": "ACTIVE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH"}}], "affected": [{"vendor": "gohugoio", "product": "hugo", "versions": [{"status": "affected", "version": ">= 0.123.0, < 0.163.1"}]}], "references": [{"url": "https://github.com/gohugoio/hugo/security/advisories/GHSA-c3wq-j5vh-68rc", "name": "https://github.com/gohugoio/hugo/security/advisories/GHSA-c3wq-j5vh-68rc", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/gohugoio/hugo/pull/15020", "name": "https://github.com/gohugoio/hugo/pull/15020", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/gohugoio/hugo/commit/cf9c8f93ca2a2838ce378f9e36d052ac2f79e229", "name": "https://github.com/gohugoio/hugo/commit/cf9c8f93ca2a2838ce378f9e36d052ac2f79e229", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/gohugoio/hugo/releases/tag/v0.163.1", "name": "https://github.com/gohugoio/hugo/releases/tag/v0.163.1", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "Hugo is a static site generator. From v0.123.0 through v0.163.0, Hugo's virtual filesystem is designed so that files under a mount cannot reach outside the mount tree, but a regression caused RootMappingFs.statRoot to call Stat, which follows symlinks, instead of Lstat, so a direct os.ReadFile \"somefile\" where somefile was a symlink pointing outside the mount would return the target's contents. This effectively let a symlink planted inside a theme or local mount read arbitrary files reachable to the user running hugo. This issue is fixed in v0.163.1."}], "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": "2026-07-06T19:25:45.971Z"}}}, "cveMetadata": {"cveId": "CVE-2026-58403", "state": "PUBLISHED", "dateUpdated": "2026-07-06T20:51:27.624Z", "dateReserved": "2026-06-30T18:19:58.379Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-07-06T19:25:45.971Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.123.0,0.163.1)"}}], "enrichment": {"confidence": 92.0, "confidence_source": "matching", "scores": [{"score": 92.0, "source": "matching"}]}, "original": {"product": "hugo", "source": "cna", "vendor": "gohugoio"}, "product": "hugo", "vendor": "gohugo"}], "created": "2026-07-06T22:15:15.520908+00:00", "updated": "2026-07-06T22:15:15.520925+00:00", "vendors": ["gohugo", "gohugo$PRODUCT$hugo"]}