Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2026-72701 Details

UNDERGOING ENRICHMENT

The CVE is currently being enriched by the Volerion team. The enrichment process results in the association of reference link tags, CVSS, and CPE applicability statement data.

Description

Grav CMS before 2.0.16 contains a timing vulnerability in Utils::verifyNonce() that uses non-constant-time string comparison with the === operator instead of hash_equals() for CSRF nonce validation. Attackers can measure response timing differences to recover valid nonce values byte-by-byte through multiple requests, weakening CSRF protection below its intended security margin.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:…Vector:This vulnerability is currently being analyzed.

CNA: [email protected]CVSS-B:3.7 LOWVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://github.com/getgrav/grav/security/advisories/GHSA-38p6-h87p-r4cg	CISA-ADP
https://github.com/getgrav/grav/security/advisories/GHSA-38p6-h87p-r4cg	[email protected]
https://www.vulncheck.com/advisories/grav-cms-before-timing-attack-via-verifynonce	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-208	Observable Timing Discrepancy	[email protected]

Affected Products

This vulnerability is currently being analyzed

Change History

3 change records found show changes

Date	Action	Recorded By
Aug 27, 2026	CVE Modified	[email protected]
Aug 27, 2026	CVE Modified	CISA-ADP
Aug 25, 2026	New CVE Received	[email protected]