{"id":"CVE-2026-58403","revision":"549e992194be48658d272101cefbf2be","records":[{"revision":"549e992194be48658d272101cefbf2be","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-58403","aliases":[],"title":"Hugo symlink confinement bypass in os.ReadFile","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":"2026-07-06T19:25:45.971+00:00","modifiedAt":"2026-07-06T20:51:27.624+00:00","affected":[{"ecosystem":"Vendor product","name":"hugo","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"gohugoio\",\n                    \"product\": \"hugo\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 0.123.0, < 0.163.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","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","score":5.9,"severity":"MEDIUM"}],"references":["https://github.com/gohugoio/hugo/security/advisories/GHSA-c3wq-j5vh-68rc","https://github.com/gohugoio/hugo/pull/15020","https://github.com/gohugoio/hugo/commit/cf9c8f93ca2a2838ce378f9e36d052ac2f79e229","https://github.com/gohugoio/hugo/releases/tag/v0.163.1"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-58403","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-58403","identifiers":["CVE-2026-58403"]},"retained":false,"historicalAffected":[]}],"coverage":[]}