Critical severity9.1NVD Advisory· Published Aug 18, 2026· Updated Sep 8, 2026

CVE-2026-75837

Description

Grav before 2.0.14 fails to guard the access field in the core group blueprint with the required security@: admin.super restriction. A delegated admin.users operator can save a group with access[admin][super]=true to escalate to super-admin, gaining scheduler and Twig evaluation capabilities.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Getgrav/Gravllm-fuzzy
Range: <2.0.14

Patches

Vulnerability mechanics

References

github.com/advisories/GHSA-xhfv-7758-r9hxghsaADVISORY
github.com/getgrav/grav/security/advisories/GHSA-xhfv-7758-r9hxnvd
nvd.nist.gov/vuln/detail/CVE-2026-75837ghsa
www.vulncheck.com/advisories/grav-before-privilege-escalation-via-group-access-fieldnvd

News mentions

Grav CMS: 14 Vulnerabilities Including Critical Privilege Escalation Disclosed Together
Vypr Intelligence · Aug 19, 2026
Grav CMS: Critical Privilege Escalation and XSS Flaws Disclosed Together
Vypr Intelligence · Aug 18, 2026

cvss	0.591
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000