Vulnerability record · CVE-2026-24425 · published 20 May 2026

CVE-2026-24425: Symfony twig vulnerability

Symfony · Twig

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.

8.7 CVSS 4.0 High EPSS 0.76% · top 46.6% CWE-693 · CWE-693

8.7CVSS 4.0 base score

0.76%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

3References

23 Jul 2026Last modified by NVD

Description

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Twig Symfony

References

Link	Tags
https://github.com/twigphp/Twig/releases/tag/v3.26.0	ProductRelease Notes
https://github.com/twigphp/Twig/security/advisories/GHSA-2q52-x2ff-qgfr	Vendor Advisory
https://www.vulncheck.com/advisories/twig-x-x-sandbox-bypass-via-sourcepolicyinterface	Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-24425), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.