CVE-2026-109574

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{"bugzilla": {"description": "hugo: Hugo: Information disclosure via Sass import path traversal", "id": "2550039", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550039"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-22", "details": ["Hugo before v0.167.0 contains a path traversal vulnerability in css.Sass that allows malicious themes or modules to read files outside the project root through the Sass compiler's import fallback. Attackers can ship stylesheets with relative, absolute, or symlinked @import or @use targets to compile readable files into the published site CSS.", "A flaw was found in Hugo. A path traversal vulnerability in the Sass stylesheet processing component allows malicious themes or modules to access files outside the intended project directory. By supplying crafted stylesheet import directives, an attacker can read sensitive local files and include their contents in the publicly generated cascading style sheets (CSS), resulting in information disclosure."], "mitigation": {"lang": "en:us", "value": "Avoid compiling Hugo sites using untrusted themes or modules containing unverified stylesheets. When processing third-party themes, execute Hugo builds within an isolated, unprivileged container environment with minimal directory mounts."}, "name": "CVE-2026-109574", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "grafana", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "grafana12.4", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "grafana13.1", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "grafana13.2", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "hugo", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:openshift_gitops:1", "fix_state": "Fix deferred", "package_name": "openshift-gitops-1/argocd-rhel9", "product_name": "Red Hat OpenShift GitOps"}, {"cpe": "cpe:/a:redhat:openstack:18.0", "fix_state": "Fix deferred", "package_name": "rhoso-operators/openstack-operator-bundle", "product_name": "Red Hat OpenStack Platform 18.0"}], "public_date": "2026-10-12T22:21:50Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-109574\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-109574\nhttps://github.com/gohugoio/hugo/security/advisories/GHSA-3jfr-vjcq-7jvf\nhttps://www.vulncheck.com/advisories/hugo-before-0.167.0-path-traversal-via-css-sass-import-fallback"], "statement": "A flaw was found in Hugo's Sass stylesheet compilation pipeline (css.Sass). When processing themes or modules, the Sass compiler's fallback resolver fails to enforce directory confinement when handling relative, absolute, or symlinked @import or @use directives. An attacker who tricks a user or automated pipeline into compiling a site using a malicious theme can exploit path traversal to read arbitrary local host files accessible to the build user, bundling sensitive contents directly into the publicly generated CSS output.", "threat_severity": "Moderate"}

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