{"id":"CVE-2026-109596","aliases":["DEBIAN-CVE-2026-109596","EUVD-2026-98159","GHSA-38r7-h6rh-gjv9","GHSA-6c8w-mpp8-9w47","RHSA-2026:80677","UBUNTU-CVE-2026-109596"],"status":"published","title":"Hugo from v0.162.0 before v0.167.0 Symlink File Disclosure via Nested Mount Ancestor","description":"Hugo from v0.162.0 before v0.167.0 contains an improper link resolution vulnerability that lets malicious themes or modules expose files outside their root via nested-mount ancestor directories. Attackers controlling a theme can place a symlink or NTFS junction at a virtual ancestor directory, causing resources.Match to list and publish local files during builds.","severity":{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00144,"percentile":0.037,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-59"],"published":"2026-10-12T22:21:51Z","modified":"2026-10-28T02:31:00Z","fixes":[{"ecosystem":"Debian:14","package":"hugo","fixed_in":["0.167.0-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:14","package":"hugo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.167.0-1"}]}],"versions":["0.131.0-1","0.131.0-2","0.150.0-1","0.150.1-1","0.151.0-1","0.151.1-1","0.151.2-1","0.152.1-1","0.152.2-1","0.153.0-1","0.153.1-1","0.153.1-2","0.153.1-3","0.153.2-1","0.154.1-1","0.154.2-1","0.154.2-2","0.154.3-1","0.154.5-1","0.155.1-1","0.155.2-1","0.155.3-1","0.157.0-1","0.157.0-2","0.157.0-3","0.158.0-1","0.158.0-2","0.158.0-3","0.159.0-1","0.159.1-1","0.159.2-1","0.160.0-1","0.160.0-2","0.160.1-1","0.161.0-1","0.161.1-1","0.162.1-1","0.162.1-2","0.162.1-3","0.162.1-4","0.162.1-5","0.162.1-6","0.162.1-7","0.165.0-1","0.165.0-2","0.165.0-3","0.166.0-1","0.166.0-2"]},{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"hugo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.167.0-0.2.hum1"}]}],"bundled":5},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"hugo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.15+git20160109.147.dd1d655-1","0.15+git20160109.147.dd1d655-2","0.15+git20160128.179.5def6d9-1","0.15+git20160206.203.ed23711-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"hugo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.25.1-2","0.26-1","0.35-1","0.37.1-1","0.38-1","0.39-1","0.40-1","0.40.1-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"hugo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.57.2-1","0.58.3-1","0.59.1-1.1","0.68.3-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"hugo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.80.0-6","0.89.4-2","0.90.0-1","0.90.1-1","0.91.0-1","0.91.2-1","0.92.0-1","0.92.1-1build1","0.92.2-1","0.92.2-1ubuntu0.1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"hugo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.113.0-3","0.119.0-2","0.120.3-1","0.120.4-1","0.121.2-1","0.122.0-1","0.123.7-1build1","0.123.7-1ubuntu0.1","0.123.7-1ubuntu0.2","0.123.7-1ubuntu0.2+esm1","0.123.7-1ubuntu0.3","0.123.7-1ubuntu0.3+esm1","0.123.7-1ubuntu0.3+esm2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"hugo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.154.5-1","0.162.1-5","0.162.1-7"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"hugo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.131.0-1","0.152.2-1","0.153.1-3","0.153.2-1","0.154.2-2","0.154.3-1","0.154.5-1"]}],"products":[{"vendor":"gohugoio","product":"hugo"}],"references":[{"url":"https://github.com/gohugoio/hugo/security/advisories/GHSA-6c8w-mpp8-9w47","tags":["vendor-advisory","advisory","article","report"]},{"url":"https://www.vulncheck.com/advisories/hugo-from-0.162.0-before-0.167.0-symlink-file-disclosure-via-nested-mount-ancestor","tags":["third-party-advisory","advisory","article","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109596","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-38r7-h6rh-gjv9"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109596.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-109596","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:80677","tags":["advisory"]},{"url":"https://images.redhat.com/","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2024-24786","tags":["report"]},{"url":"https://access.redhat.com/security/updates/classification/","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-109596","tags":["report"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-109595","tags":["report"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-109574","tags":["report"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-109597","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_80677.json","tags":["advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2268046","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-24786","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-24786","tags":["advisory"]},{"url":"https://go.dev/cl/569356","tags":["article"]},{"url":"https://groups.google.com/g/golang-announce/c/ArQ6CDgtEjY/","tags":["article"]},{"url":"https://pkg.go.dev/vuln/GO-2024-2611","tags":["advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2550039","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-109574","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109574","tags":["advisory"]},{"url":"https://github.com/gohugoio/hugo/security/advisories/GHSA-3jfr-vjcq-7jvf","tags":["article"]},{"url":"https://www.vulncheck.com/advisories/hugo-before-0.167.0-path-traversal-via-css-sass-import-fallback","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2550056","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-109595","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109595","tags":["advisory"]},{"url":"https://github.com/gohugoio/hugo/security/advisories/GHSA-r4xx-89rf-5424","tags":["article"]},{"url":"https://www.vulncheck.com/advisories/hugo-0.84.0-before-0.167.0-path-traversal-via-js-build-esbuild-resolver","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2550016","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-109596","tags":["advisory","report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2550088","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-109597","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109597","tags":["advisory"]},{"url":"https://github.com/gohugoio/hugo/security/advisories/GHSA-wcpj-vcvm-j4pg","tags":["article"]},{"url":"https://www.vulncheck.com/advisories/hugo-0.60.0-before-0.167.0-stored-xss-via-table-of-contents-heading-ids","tags":["article"]},{"url":"https://ubuntu.com/security/CVE-2026-109596","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-109596","title":"Hugo from v0.162.0 before v0.167.0 Symlink File Disclosure via Nested Mount Ancestor","description":"Hugo from v0.162.0 before v0.167.0 contains an improper link resolution vulnerability that lets malicious themes or modules expose files outside their root via nested-mount ancestor directories. Attackers controlling a theme can place a symlink or NTFS junction at a virtual ancestor directory, causing resources.Match to list and publish local files during builds.","status":"published","published":"2026-10-12T22:21:51.306Z","modified":"2026-10-14T12:07:23.109Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T14:20:11.581788Z"}],"euvd":[{"id":"EUVD-2026-98159","description":"Hugo from v0.162.0 before v0.167.0 contains an improper link resolution vulnerability that lets malicious themes or modules expose files outside their root via nested-mount ancestor directories. Attackers controlling a theme can place a symlink or NTFS junction at a virtual ancestor directory, causing resources.Match to list and publish local files during builds.","status":"published","published":"2026-10-12T22:21:51Z","modified":"2026-10-14T12:07:23Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T17:27:15.969628Z"}],"ghsa":[{"id":"GHSA-38r7-h6rh-gjv9","title":"Hugo from v0.162.0 before v0.167.0 contains an improper link resolution vulnerability that lets...","description":"Hugo from v0.162.0 before v0.167.0 contains an improper link resolution vulnerability that lets malicious themes or modules expose files outside their root via nested-mount ancestor directories. Attackers controlling a theme can place a symlink or NTFS junction at a virtual ancestor directory, causing resources.Match to list and publish local files during builds.","status":"published","published":"2026-10-13T00:31:21Z","modified":"2026-10-13T00:31:22Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/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","level":"medium"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T15:13:08.654991Z"}],"nvd":[{"id":"CVE-2026-109596","description":"Hugo from v0.162.0 before v0.167.0 contains an improper link resolution vulnerability that lets malicious themes or modules expose files outside their root via nested-mount ancestor directories. Attackers controlling a theme can place a symlink or NTFS junction at a virtual ancestor directory, causing resources.Match to list and publish local files during builds.","status":"published","published":"2026-10-12T23:17:23.033Z","modified":"2026-10-16T19:15:07.947Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/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","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T14:12:56.72789Z"}],"osv":[{"id":"CVE-2026-109596","title":"Hugo from v0.162.0 before v0.167.0 Symlink File Disclosure via Nested Mount Ancestor","description":"Hugo from v0.162.0 before v0.167.0 contains an improper link resolution vulnerability that lets malicious themes or modules expose files outside their root via nested-mount ancestor directories. Attackers controlling a theme can place a symlink or NTFS junction at a virtual ancestor directory, causing resources.Match to list and publish local files during builds.","status":"published","published":"2026-10-12T22:21:51.306Z","modified":"2026-10-28T02:31:00.357808411Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T15:44:55.279797Z"},{"id":"DEBIAN-CVE-2026-109596","description":"Hugo from v0.162.0 before v0.167.0 contains an improper link resolution vulnerability that lets malicious themes or modules expose files outside their root via nested-mount ancestor directories. Attackers controlling a theme can place a symlink or NTFS junction at a virtual ancestor directory, causing resources.Match to list and publish local files during builds.","status":"published","published":"2026-10-12T23:17:23.033Z","modified":"2026-10-23T17:47:22.173236479Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/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","level":"medium"}],"updated_at":"2026-11-02T15:45:49.381767Z"},{"id":"RHSA-2026:80677","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update","status":"published","published":"2026-10-14T10:32:10Z","modified":"2026-10-20T10:43:36.421679395Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:53:23.547034Z"},{"id":"UBUNTU-CVE-2026-109596","description":"Hugo from v0.162.0 before v0.167.0 contains an improper link resolution vulnerability that lets malicious themes or modules expose files outside their root via nested-mount ancestor directories. Attackers controlling a theme can place a symlink or NTFS junction at a virtual ancestor directory, causing resources.Match to list and publish local files during builds.","status":"published","published":"2026-10-12T23:17:00Z","modified":"2026-10-17T12:59:50.273246007Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"},{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:55:59.130573Z"}]}}
