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TI-2020-16105 Aliases CVE-2020-26284GHSA-8j34-9876-pvfq

Hugo can execute a binary from the current directory on Windows

Priority MEDIUM 40CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-78.

Summary

Hugo is a fast and Flexible Static Site Generator built in Go. Hugo depends on Go's `os/exec` for certain features, e.g. for rendering of Pandoc documents if these binaries are found in the system `%PATH%` on Windows. In Hugo before version 0.79.1, if a malicious file with the same name (`exe` or `bat`) is found in the current working directory at the time of running `hugo`, the malicious command will be invoked instead of the system one. Windows users who run `hugo` inside untrusted Hugo sites are affected. Users should upgrade to Hugo v0.79.1. Other than avoiding untrusted Hugo sites, there is no workaround.

Why it matters now

EPSS 0.01468 73rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed hugo (gohugoio): 0.79.1github.com/gohugoio/hugo (Go): 0.79.1

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
gohugoiohugobefore 0.79.10.79.1Patch availableCNA
—github.com/gohugoio/hugo (Go)before 0.79.10.79.1Patch availableGHSA-8j34-9876-pvfq
  • hugo Vendorgohugoio Affected before 0.79.1 Fixed in 0.79.1 Patch available CNA
  • github.com/gohugoio/hugo (Go) Vendor— Affected before 0.79.1 Fixed in 0.79.1 Patch available GHSA-8j34-9876-pvfq

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gohugo:hugo:*:*:*:*:*:windows:*:*before 0.79.1Vulnerablegohugoio
  • cpe:2.3:a:gohugo:hugo:*:*:*:*:*:windows:*:* Versions before 0.79.1 Vulnerable ·gohugoio

Remediation

  • Fix · CNA hugo (gohugoio) Fixed in 0.79.1
  • Fix · GHSA-8j34-9876-pvfq github.com/gohugoio/hugo (Go) Fixed in 0.79.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-26284
  2. 2026-10-03 Alias added: GHSA-8j34-9876-pvfq

References

Exploit 1

Patch 1

Advisory 1

  • TI-2026-64848 Hugo before v0.166.0 Path Traversal via Symlinked Mount Roots CVSS 4.0HIGH 8.7
  • TI-2026-64846 Hugo v0.161.0 to v0.165.0 Arbitrary File Read via Symlinks CVSS 4.0HIGH 8.7
  • TI-2026-53153 Hugo 0.162.0 to 0.164.x - Node Permission Model Bypass via Default TailwindCSS Child-Process Grant CVSS 4.0CRITICAL 9.3
  • TI-2026-64849 Hugo v0.162.0 before v0.166.0 IP-literal Deny Rule Bypass CVSS 4.0HIGH 8.6
  • TI-2026-32270 Hugo: Node tool execution allows file system access outside the project directory CVSS 4.0MEDIUM 6.2
  • TI-2026-36906 Hugo: Symlink confinement bypass in resources.Get CVSS 4.0MEDIUM 6.9
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences