Incorrect authorization in Twig - CVE-2026-46635
Published: May 20, 2026
Vulnerability identifier: #VU131997
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-46635
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Symfony
Affected software:
Twig
Twig
Detailed vulnerability description
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to improper access control in the `column` filter when processing arrays of objects in sandboxed templates. A remote user can use the filter to read public or magic properties of reachable objects to disclose sensitive information.
Exploitation requires an untrusted template author to have the `column` filter in their `allowedFilters` list.
How to mitigate CVE-2026-46635
Install security update from vendor's website.