CVE-2026-75926: gohugoio hugo

Hugo 0.162.0 to 0.164.x - Node Permission Model Bypass via Default TailwindCSS Child-Process Grant

CVSS 9.3 CriticalCriticalEPSS 0.0028 · 20th percentile

Critical, because:

CVSS score 9.3: 9.0 or more.

Published by the CVE Program (CNA: VulnCheck) at 18 Aug 2026, 15:47 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
gohugoio	hugo pkg:golang/github.com/gohugoio/hugo	affected 0.162.0 to before 0.165.0 semver Other versions: unaffected

Identifiers

CVE-2026-75926

CNA

VulnCheck

Weakness (CWE)

CWE-1188

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
9.3	Critical	4.0	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H	CNA (VulnCheck)Used for this record
8.6	High	3.1	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0028, the 20th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 18 Aug 2026. New records show when each source confirmed them.

Sources

References from the CNA

github.com/gohugoio/hugo/commit/8a55df7af2e6da31297245cc54fa2e3b521d93e8 patch
github.com/gohugoio/hugo/issues/15178 issue-tracking
github.com/gohugoio/hugo/blob/v0.164.0/config/security/securityConfig.go#L72-L79 technical-description
github.com/gohugoio/hugo/blob/v0.164.0/common/hexec/exec.go#L292-L295 technical-description
github.com/gohugoio/hugo product
www.vulncheck.com/advisories/hugo-to-x-node-permission-model-bypass-via-default-tailwindcss-child-process-grant third-party-advisory

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.