CVE-2026-109595Hugo v0.84.0 before v0.167.0 Path Traversal via js.Build ESBuild Resolver
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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Hugo from v0.84.0 before v0.167.0 contains a path traversal vulnerability that allows malicious themes or modules to read files outside the project root via ESBuild's fallback resolver in js.Build, js.Batch, and css.Build. Attackers can ship relative imports or symlinks pointing outside the project to bundle any file readable by the build user into published JavaScript or CSS output.
- CVSS
- 5.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-22
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 12, 2026
Affected products
gohugoio hugo gohugoio:hugo (from the name) | from 0.84.0 before 0.167.0; 0.167.0 not affected | CNA record |
References
- https://github.com/gohugoio/hugo/security/advisories/GHSA-r4xx-89rf-5424vendor-advisory
- https://www.vulncheck.com/advisories/hugo-0.84.0-before-0.167.0-path-traversal-via-js-build-esbuild-resolverthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.