CVE-2026-24425

Twig 2.16.x & 3.9.0-3.25.x Sandbox Bypass via SourcePolicyInterface

State: Published
Severity: 8.7 High
Published: May 20, 2026
Updated: Oct 8, 2026
Reserved: Jan 22, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	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	VulnCheck
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	VulnCheck

Weaknesses

CWE-693 Protection Mechanism Failure

Affected Products

Product	Versions
Twigtwigphp	3.9.0 to before 3.26.0Affected 2.16.*Affected

References

https://github.com/twigphp/Twig/security/advisories/GHSA-2q52-x2ff-qgfrvendor-advisory
https://github.com/twigphp/Twig/releases/tag/v3.26.0release-notes
https://www.vulncheck.com/advisories/twig-x-x-sandbox-bypass-via-sourcepolicyinterfacethird-party-advisory

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