DEBIAN-CVE-2026-46636

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    DEBIAN-CVE-2026-46636

    Published: 4 Sept 2026Last Modified: 26 Sept 2026
    Upstream:
    CVE-2026-46636

    Summary:

    Details: Twig is a template language for PHP. From version 1.0.0 to before version 3.27.0, SecurityPolicy::checkMethodAllowed() unconditionally whitelists all method calls on instances of Twig\Markup. Twig\Markup is not final, so subclasses inherit the bypass. An application that passes an object of a Markup-derived class into a sandboxed template (typically to mark a chunk of HTML as safe) inadvertently exposes every public method of that subclass to template authors, regardless of the configured allowedMethods list. This issue has been patched in version 3.27.0.

    References: https://security-tracker.debian.org/tracker/CVE-2026-46636

    Affected packages

    Package

    Name: php-twig

    Purl: pkg:deb/debian/php-twig?arch=source&distro=bookworm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    3.10.1-1
    3.10.3-1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    DEBIAN-CVE-2026-46636 | CVE-DB