CVE-2026-50134: hugo SSRF — Fix

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.

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CVSS v3.1 Score

5.8

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

EPSS — Exploit Prediction

0.0025

Probability of exploitation

0.16%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Vendor	Product	Versions
gohugo	hugo	0.91.0 — 0.162.0

References

Advisories & Patches

https://github.com/gohugoio/hugo/commit/86fbb0f7a8bbb93e2e916390de9e5a4f24bf9f50 https://github.com/gohugoio/hugo/security/advisories/GHSA-vxgm-5rmg-5w8g

Other References

https://github.com/gohugoio/hugo/releases/tag/v0.162.0

Frequently Asked Questions

What is CVE-2026-50134? +

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. It has a CVSS v3.1 base score of 5.8 (MEDIUM).

How severe is CVE-2026-50134? +

CVE-2026-50134 has a CVSS v3.1 score of 5.8 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0025, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-50134? +

CVE-2026-50134 affects products from gohugo, specifically: hugo. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-50134? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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