Hugo: security.http.urls allow-list bypass via HTTP redirects (CVE-2026-50134) | HOL Guard CVE

Medium · CVSS 6.3CVE-2026-50134GHSA-VXGM-5RMG-5W8G

Hugo: security.http.urls allow-list bypass via HTTP redirects

Answer in brief

CVE-2026-50134 records a Medium severity (CVSS 6.3) vulnerability in Hugo: security.http.urls allow-list bypass via HTTP redirects. The current sources do not mark it as known exploited. The current feed maps gohugoio/hugo (generic), github.com/gohugoio/hugo (go). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jul 6, 2026Updated Jul 8, 2026Source checked Sep 17, 2026First seen by HOL Jun 19, 2026Material review Jul 8, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.3
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 6.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps gohugoio/hugo (generic), github.com/gohugoio/hugo (go). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
gohugoio/hugogeneric	>= 0.91.0, < 0.162.0	Not reported
github.com/gohugoio/hugogo	>=0.91.0,<0.162.0	0.162.0

Recommended response

Check inventory. Check lockfiles and deployed manifests for gohugoio/hugo, github.com/gohugoio/hugo.
Review the reported fix. Update github.com/gohugoio/hugo to 0.162.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Jul 6, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Jul 8, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jun 19, 2026

Sources and claim methodology

Upstream source description

Hugo is a static site generator. From 0.91.0 until 0.162.0, resources.GetRemote enforces security.http.urls on the URL it is called with, but it did not re-validate intermediate URLs on HTTP 3xx redirects. An allowed server (or an attacker controlling its DNS or response) could therefore redirect the request to a host that the policy was meant to forbid and Hugo would fetch from the redirected target. The same bypass also lifted any host-shape restriction the operator had put in place. This vulnerability is fixed in 0.162.0.

Quoted source text, attributed separately from HOL analysis.