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.
History

Wed, 30 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 29 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
First Time appeared Redhat
Redhat hummingbird
Weaknesses CWE-918
CPEs cpe:/a:redhat:hummingbird:1
Vendors & Products Redhat
Redhat hummingbird
References
Metrics threat_severity

None

threat_severity

Moderate


Sat, 26 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
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.
Title Hugo v0.162.0 before v0.166.0 IP-literal Deny Rule Bypass
First Time appeared Gohugo
Gohugo hugo
Weaknesses CWE-178
CPEs cpe:2.3:a:gohugo:hugo:*:*:*:*:*:*:*:*
Vendors & Products Gohugo
Gohugo hugo
References
Metrics cvssV3_1

{'score': 8.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-09-26T13:23:51.556Z

Updated: 2026-09-30T17:05:28.149Z

Reserved: 2026-09-26T02:37:41.037Z

Link: CVE-2026-100693

cve-icon Vulnrichment

Updated: 2026-09-30T17:05:22.767Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-26T14:16:54.007

Modified: 2026-09-30T18:18:01.750

Link: CVE-2026-100693

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-09-26T13:23:51Z

Links: CVE-2026-100693 - Bugzilla