CVE-2026-46633
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.69%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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
- 8.7 HIGHCVSS: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/M
- EPSS
- 0.69% probability · 51th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-94
- Affected
- symfony/twig
- Source
- security-advisories@github.com
References
- https://github.com/twigphp/Twig/commit/679447fa29083043665482ccf7d64372472621b8Patch
- https://github.com/twigphp/Twig/commit/e9ff55f6910832428e48a35b2e0748189ad49ae3Patch
- https://github.com/twigphp/Twig/releases/tag/v3.26.0Release Notes
- https://github.com/twigphp/Twig/security/advisories/GHSA-7p85-w9px-jpjpVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.