Bug 2555646

Summary: CVE-2026-109596 hugo: Hugo: Information disclosure via improper link resolution in nested mounts [fedora-43]
Product: [Fedora] Fedora Reporter: Joel Chamberlain <jochambe>
Component: hugoAssignee: Justin Wheeler <fedora>
Status: MODIFIED --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 43CC: athoscribeiro, epel-packagers-sig, fedora, go-sig, loranallensmith, neil, quantum.analyst, redhat
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["3937cddf-80b4-4ccf-a9db-0805c1ed6ecc"]}
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On:    
Bug Blocks: 2550016    

Description Joel Chamberlain 2026-10-19 15:05:17 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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.
Comment 1 Fedora Update System 2026-11-06 04:38:08 UTC 
FEDORA-2026-97aa8e408a (hugo-0.169.0-2.fc45) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-97aa8e408a
Comment 2 Fedora Update System 2026-11-06 04:51:09 UTC 
FEDORA-2026-9521359c66 (hugo-0.165.0-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-9521359c66