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CVE-2026-100693

8.4 · HIGH

Hugo versions from v0.162.0 before v0.166.0 contain a case-sensitive validation flaw in the security.http.urls IP-literal deny rule that allows attackers to bypass restrictions.

Published Sep 26, 2026gohugoCWE-178EPSS 0.14%

Overview

CVE-2026-100693 is a high-severity vulnerability affecting gohugo hugo. It was published on September 26, 2026 and has a CVSS 3.1 base score of 8.4 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

Hugo versions from v0.162.0 before v0.166.0 contain a case-sensitive validation flaw in the security.http.urls IP-literal deny rule that allows attackers to bypass restrictions. Attackers can use mixed-case URL schemes in resources.GetRemote calls to fetch from restricted IP addresses like localhost.

Remediation

Check the references section for vendor advisories and patches from gohugo. Update hugo to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
gohugohugo>= 0.162.0, < 0.166.0Affected

References

GitHubgithub.com/gohugoio/hugo/security/advisories/GHSA-pmrv-x7gp-2rjwRefwww.vulncheck.com/advisories/hugo-0.162.0-before-0.166.0-ip-literal-deny-rule-bypass

How CyberStrike helps

Frequently asked questions

What is CVE-2026-100693?

CVE-2026-100693 is a high-severity vulnerability affecting gohugo hugo. It was published on September 26, 2026 and has a CVSS 3.1 base score of 8.4 (HIGH).

How severe is CVE-2026-100693?

This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-100693?

Check the references section for vendor advisories and patches from gohugo. Update hugo to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-100693?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-100693 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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