CVE-2026-24425 HIGH

CVE-2026-24425: Twig 2.16.x & 3.9.0-3.25.x Sandbox Bypass via SourcePolicyInterface

Vendor Twigphp
Product Twig
Weakness CWE-693
Published May 20, 2026
Last update May 20, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Twig versions 2.16.x and 3.9.0 through 3.25.x contain a sandbox bypass vulnerability when using a SourcePolicyInterface that allows attackers with template rendering capabilities to pass arbitrary PHP callables to sort, filter, map, and reduce filters. Attackers can exploit the runtime check that fails to use the current template source to bypass sandbox restrictions and execute arbitrary code when the sandbox is enabled through a source policy rather than globally.

Key dates

02Disclosure timeline

May 20, 2026 CVE published
May 20, 2026 Record updated