{"id":"CVE-2026-58403","revision":"f323a5fe931749dd91c443fbb9be47a0","records":[{"revision":"f323a5fe931749dd91c443fbb9be47a0","observedAt":"2026-10-27T15:15:28.354+00:00","statement":{"source":"nvd","id":"CVE-2026-58403","aliases":[],"title":"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 follo…","description":"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.","state":0,"publishedAt":"2026-07-06T20:16:38.173+00:00","modifiedAt":"2026-10-25T20:10:00.147+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","vector":"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/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","score":5.9,"severity":"MEDIUM"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","score":6.5,"severity":"MEDIUM"}],"references":["https://github.com/gohugoio/hugo/commit/cf9c8f93ca2a2838ce378f9e36d052ac2f79e229","https://github.com/gohugoio/hugo/pull/15020","https://github.com/gohugoio/hugo/releases/tag/v0.163.1","https://github.com/gohugoio/hugo/security/advisories/GHSA-c3wq-j5vh-68rc"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-58403","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-59"],"productCriteria":["cpe:2.3:a:gohugo:hugo:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2026-07-06T20:16:38.173","lastModified":"2026-10-25T20:10:00.147"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-58403","identifiers":["CVE-2026-58403"]},"retained":false,"historicalAffected":[]}],"coverage":[]}