| Name | CVE-2026-58404 |
| Description | Hugo is a static site generator. From v0.162.0 through v0.163.0, the default security.http.urls policy denies requests to loopback, internal, and cloud-metadata IPv4 literals, but the deny rule only matched dotted-decimal notation, so alternate IPv4 encodings of the same addresses, including integer, hex, or octal, passed the policy. When a template passes an untrusted or data-derived URL to resources.GetRemote and the host platform uses the cgo system resolver, these encodings resolve to the blocked address, allowing build-time server-side requests to loopback and internal services, including the cloud-metadata endpoint in hosted or CI builds; the same check is reused on redirects, so the gap also applies to each redirect hop. This issue is fixed in v0.163.1. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| hugo (PTS) | bullseye | 0.80.0-6 | vulnerable |
| bullseye (security) | 0.80.0-6+deb11u1 | vulnerable | |
| bookworm | 0.111.3-1 | vulnerable | |
| trixie | 0.131.0-1 | vulnerable | |
| forky | 0.161.1-1 | vulnerable | |
| sid | 0.162.1-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| hugo | source | (unstable) | (unfixed) |
https://github.com/gohugoio/hugo/security/advisories/GHSA-r46f-3rpw-hxrv
https://github.com/gohugoio/hugo/pull/15020
Fixed by: https://github.com/gohugoio/hugo/commit/a00b5c72ac57afe26df6688ece3ca544a56df372 (v0.163.1)