CVE-2026-100693
Hugo v0.162.0 before v0.166.0 IP-literal Deny Rule Bypass
- State
- Published
- Severity
- 8.6 High
- Published
- Sep 26, 2026
- Updated
- Sep 30, 2026
- Reserved
- Sep 26, 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.6 High | 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 | VulnCheck |
| 3.1 | 8.4 High | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-178 Improper Handling of Case Sensitivity
Affected Products
| Product | Versions |
|---|---|
hugogohugoio |
|
References
- GitHub Security Advisory (GHSA-pmrv-x7gp-2rjw)vendor-advisory
- VulnCheck Advisory: Hugo v0.162.0 before v0.166.0 IP-literal Deny Rule Bypassthird-party-advisory
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