What is CVE-2026-24425?

CVE-2026-24425 is a high-severity vulnerability in Symfony Twig, classified under Protection Mechanism Failure. CVSS score: 8.8/10. Published 2026-05-20.

How severe is CVE-2026-24425?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Symfony Twig

CVE-2026-24425

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 re…

EPSS: 0.001 (29.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Symfony Twig
Twigphp Twig — versions 3.9.0, 2.16.*

Weakness classification (CWE)

CWE-693 — Protection Mechanism Failure

References

disclosure@vulncheck.com (release-notes, Product, Release Notes)
disclosure@vulncheck.com (vendor-advisory, Vendor Advisory)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-24425?: CVE-2026-24425 is a high-severity vulnerability in Symfony Twig, classified under Protection Mechanism Failure. CVSS score: 8.8/10. Published 2026-05-20.
How severe is CVE-2026-24425?: High severity. CVSS v3 base score is 8.8 out of 10.