CVE-2026-100692

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{"affected_release": [{"advisory": "RHSA-2026:66266", "cpe": "cpe:/a:redhat:hummingbird:1", "package": "hugo-main-0.166.0-0.1.hum1", "product_name": "Red Hat Hardened Images", "release_date": "2026-09-09T00:00:00Z"}], "bugzilla": {"description": "github.com/gohugoio/hugo: Hugo: Information disclosure via symlinked mount roots", "id": "2541910", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2541910"}, "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": "verified"}, "cwe": "CWE-59", "details": ["Hugo is a static site generator. In versions after v0.123.0 and before v0.166.0, Hugo's symlink confinement checks stopped at the mount root itself, so a theme or module checked into themes/ (or a vendored module) could contain a symlink at a mount root (for example themes/mytheme/assets -> /some/dir/outside). Files behind such a symlink were readable during a site build through resources.Get, resources.Match and similar functions, and could be published to public/ via static mounts, bypassing the rule that theme and module mount sources must be local paths. Modules fetched via Go modules are not affected because Go module zips cannot contain symlinks, and this is not an escalation for the main project, which may already mount absolute paths by configuration. Fixed in v0.166.0, where symlinked mount roots and symlinked directories between the mount root and the module directory are treated as non-existent for all modules. As a workaround, inspect themes/ and vendored modules for symlinks at mount roots before building, or replace symlinks with explicit mounts.", "A flaw was found in Hugo. This vulnerability enables information disclosure when building a site that includes a crafted theme or vendored module. Because Hugo fails to properly restrict symbolic links (symlinks) at mount roots, links pointing to directories outside the project directory are traversed. Consequently, unauthorized files from the host system can be read during site generation and published into the public output directory."], "mitigation": {"lang": "en:us", "value": "Inspect checked-in themes and vendored modules for symlinks at mount roots before building. Build untrusted content in an isolated environment without access to sensitive host files."}, "name": "CVE-2026-100692", "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:openshift_gitops:1", "fix_state": "Not affected", "package_name": "openshift-gitops-1/argocd-rhel8", "product_name": "Red Hat OpenShift GitOps"}, {"cpe": "cpe:/a:redhat:openshift_gitops:1", "fix_state": "Not affected", "package_name": "openshift-gitops-1/argocd-rhel9", "product_name": "Red Hat OpenShift GitOps"}, {"cpe": "cpe:/a:redhat:openstack:18.0", "fix_state": "Not affected", "package_name": "rhoso-operators/openstack-operator-bundle", "product_name": "Red Hat OpenStack Platform 18.0"}], "public_date": "2026-09-26T13:23:50Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-100692\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-100692\nhttps://github.com/gohugoio/hugo/security/advisories/GHSA-797m-7j5g-3rpr\nhttps://www.vulncheck.com/advisories/hugo-before-0.166.0-path-traversal-via-symlinked-mount-roots"], "statement": "Red Hat Product Security rates this flaw Moderate. A Hugo build that incorporates an untrusted checked-in theme or vendored module with a symlinked mount root could publish local files readable by the builder. Historical Hummingbird Hugo builds used vulnerable versions; the current package contains the fix. Confirmed GitOps, OpenStack, Korrel8r, and Hummingbird Grafana affects lack the vulnerable version or build path. RHEL and rhivos Grafana remain conservatively affected but are deferred at this severity pending direct downstream build verification. Any residual risk requires running the affected Hugo site-generation path with untrusted local content.", "threat_severity": "Moderate"}

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