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EUVD-2026-337915

2026-10-03T06:12:48.327103+00:00

EUVD-2026-337915

fkie_cve-2026-46635

2026-10-03T06:12:48.327140+00:00

Twig is a template language for PHP. Prior to 3.26.0, the column filter passes object arrays to PHP array_column(), which reads public and magic properties without reaching CoreExtension::getAttribute() or SandboxExtension::checkPropertyAllowed(), allowing an untrusted template author with column in allowedFilters to read properties that are not in the sandbox allowlist. This issue is fixed in version 3.26.0.

GHSA-vcc8-phrv-43wj — Twig: Sandbox property allowlist bypass via the `column` filter (array_column on objects)

2026-10-03T06:12:48.327174+00:00

Affected: Packagist: twig/twig

### Description

The `column` filter passes its input straight to PHP's native `array_column()`. When the array elements are objects, `array_column()` reads `$obj->$name` (and `$obj->$index`) directly, including invoking `__get`/`__isset`. Because this property read happens entirely in PHP native code and never reaches `CoreExtension::getAttribute()`, `SandboxExtension::checkPropertyAllowed()` is never consulted.

An untrusted template author with `column` in their `allowedFilters` list can therefore read any public or magic property of any object reachable in the render context, regardless of the `SecurityPolicy` `allowedProperties` list. This is a variant of CVE-2024-51755 / GHSA-jjxq-ff2g-95vh that the `ArrayAccess`-focused fix did not cover.

### Resolution

The `column` filter now routes object property reads through the sandbox-aware attribute accessor so the property allowlist is enforced.

### Credits

Twig: would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.

UBUNTU-CVE-2026-46635

2026-10-03T06:12:48.327210+00:00

Affected: Ubuntu:Pro:20.04:LTS: php-twig, Ubuntu:Pro:22.04:LTS: php-twig, Ubuntu:Pro:24.04:LTS: php-twig, Ubuntu:25.10: php-twig, Ubuntu:Pro:26.04:LTS: php-twig