Vulnerability · Published Aug 25, 2026 · Assigned by VulnCheck

CVE-2026-76846Grav before 2.0.16 Information Disclosure via Twig Sandbox

High 7.5

In plain English

A high-severity security flaw in grav from getgrav. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.3%top 76.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Grav before 2.0.16 contains an incomplete default denylist in the Twig sandbox configuration that fails to block access to system configuration secrets. Attackers with page-edit permission can use config.get() or config.toArray() in Twig templates to retrieve sensitive values like system.cache.redis.password when config_access is enabled.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	getgrav/grav	2.0.16	GHSA-xjw5-q542-3vmr

Affected products (as reported)

Vendor	Product	Versions
getgrav	grav	0 – before 2.0.16

Weakness: CWE-522 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

GitHub Security Advisory (GHSA-xjw5-q542-3vmr) vendor-advisory
VulnCheck Advisory: Grav before 2.0.16 Information Disclosure via Twig Sandbox third-party-advisory