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CVE-2026-100693

Gohugo Hugo vulnerability

8.4 HIGHEPSS 0.14%
  1. Published26 Sept 2026

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.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Gohugo Hugo≥ 0.162.0 < 0.166.0

Remediation

Fixed in
Gohugo Hugo≥ 0.166.0

References

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Frequently asked

Is CVE-2026-100693 being actively exploited?

CVE-2026-100693 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.14%.

How severe is CVE-2026-100693?

CVE-2026-100693 has a CVSS 3.1 base score of 8.4, rated high. EPSS estimates a 0.14% probability of exploitation.

Which products are affected by CVE-2026-100693?

Affected products include Gohugo Hugo.

How do I fix CVE-2026-100693?

Upgrade affected software to a fixed version, for example Gohugo Hugo 0.166.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-100693 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.