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TI-2026-64824 Aliases CVE-2026-100668GHSA-g565-6qmq-w49v

Grav before 2.0.25 Sandbox Escape via array Filter

Priority LOW 31CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-200.

Summary

Grav 2.0.0 through 2.0.24 contain a Twig content sandbox escape. The `array` filter (and its identical function form) is on the sandbox allowlist but is registered without the needs_is_sandboxed guard that print_r, vardump, json_encode, yaml_encode and string carry, and its implementation calls toArray() — or falls back to an (array) cast — without consulting the sandbox method allowlist. Because the `grav` Twig global is the raw Pimple-based dependency injection container, a user who can author Twig in page content can evaluate `grav|array` to read the container's private $values array, including the un-redacted Config service; a second array cast returns the entire configuration tree, disclosing plugin credentials, SMTP and OAuth secrets, Redis passwords, proxy URLs and the security.* subtree that the sandbox's redaction is meant to hide. Because the payload is stored in page content, the disclosed configuration is rendered to anonymous visitors. Grav 1.7 is not affected as it has no Twig content sandbox. Fixed in Grav 2.0.25.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00281 20th percentileScored 2026-11-07
Fix Fixed grav (getgrav): 2.0.25

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
getgravgravbefore 2.0.252.0.25Patch availableCNA
  • grav Vendorgetgrav Affected before 2.0.25 Fixed in 2.0.25 Patch available CNA

Remediation

  • Fix · CNA grav (getgrav) Fixed in 2.0.25

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    getgrav grav 2.0.25

    4 records Highest priority Priority HIGH 3 HIGH, 1 LOW

    Other records, highest priority first

    • TI-2026-64825 Grav before 2.0.25 Sensitive File Disclosure via Case-Variation BypassPriority HIGH 77
    • TI-2026-64826 Grav CMS 2.0.14 through 2.0.24 Privilege Escalation via Blueprint Guard BypassPriority HIGH 73
    • TI-2026-64827 Grav before 2.0.25 Session Cookie Theft via Twig SandboxPriority HIGH 72
    Show all 4 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-100668
  2. 2026-10-03 Alias added: GHSA-g565-6qmq-w49v

References

Advisory 1

  • TI-2026-30893 Grav: Privilege Escalation via Missing Server-Side Validation of groups/access CVSS 3.1CRITICAL 9.4
  • TI-2025-28971 Cross Site Scripting vulnerability in grav v.1.7.48 and before allows an attacker to… CVSS 3.1CRITICAL 9.8
  • TI-2021-04523 Unauthenticated Arbitrary YAML Write/Update leads to Code Execution CVSS 3.1CRITICAL 9.8
  • TI-2026-50940 Grav CMS before 2.0.16 Origin Validation Bypass via Referer CVSS 4.0CRITICAL 9.3
  • TI-2026-46446 Grav before 2.0.7 Remote Code Execution via Blueprint dynamicData CVSS 4.0CRITICAL 9.3
  • TI-2021-22428 GravCMS 1.10.7 - Arbitrary YAML Write/Update (Unauthenticated) (2) CVSS 4.0CRITICAL 9.3
See all 228 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences