GHSA-vxgm-5rmg-5w8g

Suggest an improvement
Source
https://github.com/advisories/GHSA-vxgm-5rmg-5w8g
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-vxgm-5rmg-5w8g/GHSA-vxgm-5rmg-5w8g.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-vxgm-5rmg-5w8g
Aliases
Downstream
Published
2026-06-16T19:22:37Z
Modified
2026-07-07T20:41:30Z
Summary
Hugo: security.http.urls allow-list bypass via HTTP redirects
Details

Commit: 86fbb0f7a8 — security: Validate redirects against security.http.urls Affected versions: v0.91.0 (when security.http.urls was introduced) through v0.161.1. Fixed in: v0.162.0. Severity: Only relevant for sites that rely on security.http.urls as a trust boundary — e.g. CI builds that fetch remote resources but want to constrain which hosts can be reached. Not an issue if you fully trust every URL passed to resources.GetRemote.

Description. resources.GetRemote enforces security.http.urls on the URL it is called with, but until v0.162.0 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 — for example, http://localhost/ or an internal IP — and Hugo would fetch from the redirected target. The same bypass also lifted any host-shape restriction the operator had put in place.

Mitigation. v0.162.0 installs a CheckRedirect on the HTTP client used by resources.GetRemote that re-runs security.http.urls on every redirect target and caps the redirect chain at 10 hops. No configuration change is required.

Database specific
{
    "cwe_ids":  [
        "CWE-918"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-06-16T19:22:37Z",
    "nvd_published_at":  null,
    "severity":  "MODERATE"
}
References

Affected packages

Go / github.com/gohugoio/hugo

Package

Name
github.com/gohugoio/hugo
View open source insights on deps.dev
Purl
pkg:golang/github.com/gohugoio/hugo

Affected ranges

Type
SEMVER
Events
Introduced
0.91.0
Fixed
0.162.0

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-vxgm-5rmg-5w8g/GHSA-vxgm-5rmg-5w8g.json"