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Vulnerability record · CVE-2026-46633 · published 14 July 2026

CVE-2026-46633: Symfony twig code injection vulnerability

Symfony · Twig

Twig is a template language for PHP. Prior to 3.26.0, Compiler::string() does not escape single quotes when a template name from a {% use %} tag is placed inside a PHP single-quoted string literal, allowing a crafted template name to terminate the string and inject arbitrary PHP expressions into the compiled cache file. This issue is fixed in version 3.26.0.

8.7 CVSS 4.0 High EPSS 0.69% · top 49.2% CWE-94 · Code injection
8.7CVSS 4.0 base score
0.69%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
16 Jul 2026Last modified by NVD

Description

Twig is a template language for PHP. Prior to 3.26.0, Compiler::string() does not escape single quotes when a template name from a {% use %} tag is placed inside a PHP single-quoted string literal, allowing a crafted template name to terminate the string and inject arbitrary PHP expressions into the compiled cache file. This issue is fixed in version 3.26.0.

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.

References

LinkTags
https://github.com/twigphp/Twig/commit/679447fa29083043665482ccf7d64372472621b8 Patch
https://github.com/twigphp/Twig/commit/e9ff55f6910832428e48a35b2e0748189ad49ae3 Patch
https://github.com/twigphp/Twig/releases/tag/v3.26.0 Release Notes
https://github.com/twigphp/Twig/security/advisories/GHSA-7p85-w9px-jpjp Vendor 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-2026-46633), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.