UBUNTU-CVE-2026-46636

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Source

https://ubuntu.com/security/CVE-2026-46636

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46636.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-46636

Upstream

CVE-2026-46636

Published

2026-09-04T22:17:00Z

Modified

2026-09-16T14:02:10Z

Severity

8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Ubuntu - medium

Summary

[none]

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

Affected packages

Ubuntu:Pro:20.04:LTS / php-twig

Package

Name: php-twig
Purl: pkg:deb/ubuntu/php-twig?arch=source&distro=esm-apps%2Ffocal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.11.3-2

2.12.1-1

2.12.2-1

2.12.3-1

2.12.5-1

2.12.5-1ubuntu0.1~esm1

2.12.5-1ubuntu0.1~esm2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "php-twig",
            "binary_version": "2.12.5-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "php-twig-cssinliner-extra",
            "binary_version": "2.12.5-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "php-twig-extra-bundle",
            "binary_version": "2.12.5-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "php-twig-html-extra",
            "binary_version": "2.12.5-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "php-twig-inky-extra",
            "binary_version": "2.12.5-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "php-twig-intl-extra",
            "binary_version": "2.12.5-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "php-twig-markdown-extra",
            "binary_version": "2.12.5-1ubuntu0.1~esm2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46636.json"

Ubuntu:Pro:22.04:LTS / php-twig

Package

Name: php-twig
Purl: pkg:deb/ubuntu/php-twig?arch=source&distro=esm-apps%2Fjammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.3.2-1ubuntu3

3.3.4-1

3.3.6-1

3.3.7-1

3.3.8-2ubuntu4

3.3.8-2ubuntu4+esm1

3.3.8-2ubuntu4+esm2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "php-twig",
            "binary_version": "3.3.8-2ubuntu4+esm2"
        },
        {
            "binary_name": "php-twig-cache-extra",
            "binary_version": "3.3.8-2ubuntu4+esm2"
        },
        {
            "binary_name": "php-twig-cssinliner-extra",
            "binary_version": "3.3.8-2ubuntu4+esm2"
        },
        {
            "binary_name": "php-twig-extra-bundle",
            "binary_version": "3.3.8-2ubuntu4+esm2"
        },
        {
            "binary_name": "php-twig-html-extra",
            "binary_version": "3.3.8-2ubuntu4+esm2"
        },
        {
            "binary_name": "php-twig-inky-extra",
            "binary_version": "3.3.8-2ubuntu4+esm2"
        },
        {
            "binary_name": "php-twig-intl-extra",
            "binary_version": "3.3.8-2ubuntu4+esm2"
        },
        {
            "binary_name": "php-twig-markdown-extra",
            "binary_version": "3.3.8-2ubuntu4+esm2"
        },
        {
            "binary_name": "php-twig-string-extra",
            "binary_version": "3.3.8-2ubuntu4+esm2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46636.json"

Ubuntu:Pro:24.04:LTS / php-twig

Package

Name: php-twig
Purl: pkg:deb/ubuntu/php-twig?arch=source&distro=esm-apps%2Fnoble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.7.0-1

3.7.1-1

3.8.0-2

3.8.0-2ubuntu0.1~esm1

3.8.0-2ubuntu1

3.8.0-2ubuntu1+esm1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "php-twig",
            "binary_version": "3.8.0-2ubuntu1+esm1"
        },
        {
            "binary_name": "php-twig-cache-extra",
            "binary_version": "3.8.0-2ubuntu1+esm1"
        },
        {
            "binary_name": "php-twig-cssinliner-extra",
            "binary_version": "3.8.0-2ubuntu1+esm1"
        },
        {
            "binary_name": "php-twig-extra-bundle",
            "binary_version": "3.8.0-2ubuntu1+esm1"
        },
        {
            "binary_name": "php-twig-html-extra",
            "binary_version": "3.8.0-2ubuntu1+esm1"
        },
        {
            "binary_name": "php-twig-inky-extra",
            "binary_version": "3.8.0-2ubuntu1+esm1"
        },
        {
            "binary_name": "php-twig-intl-extra",
            "binary_version": "3.8.0-2ubuntu1+esm1"
        },
        {
            "binary_name": "php-twig-markdown-extra",
            "binary_version": "3.8.0-2ubuntu1+esm1"
        },
        {
            "binary_name": "php-twig-string-extra",
            "binary_version": "3.8.0-2ubuntu1+esm1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46636.json"

Ubuntu:25.10 / php-twig

Package

Name: php-twig
Purl: pkg:deb/ubuntu/php-twig?arch=source&distro=questing

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.20.0-2ubuntu1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "php-twig",
            "binary_version": "3.20.0-2ubuntu1"
        },
        {
            "binary_name": "php-twig-cache-extra",
            "binary_version": "3.20.0-2ubuntu1"
        },
        {
            "binary_name": "php-twig-cssinliner-extra",
            "binary_version": "3.20.0-2ubuntu1"
        },
        {
            "binary_name": "php-twig-extra-bundle",
            "binary_version": "3.20.0-2ubuntu1"
        },
        {
            "binary_name": "php-twig-html-extra",
            "binary_version": "3.20.0-2ubuntu1"
        },
        {
            "binary_name": "php-twig-inky-extra",
            "binary_version": "3.20.0-2ubuntu1"
        },
        {
            "binary_name": "php-twig-intl-extra",
            "binary_version": "3.20.0-2ubuntu1"
        },
        {
            "binary_name": "php-twig-markdown-extra",
            "binary_version": "3.20.0-2ubuntu1"
        },
        {
            "binary_name": "php-twig-string-extra",
            "binary_version": "3.20.0-2ubuntu1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46636.json"

Ubuntu:Pro:26.04:LTS / php-twig

Package

Name: php-twig
Purl: pkg:deb/ubuntu/php-twig?arch=source&distro=esm-apps%2Fresolute

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.20.0-2ubuntu1

3.23.0-2build5

3.23.0-2build7

3.23.0-2ubuntu0.1~esm1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "php-twig",
            "binary_version": "3.23.0-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "php-twig-cache-extra",
            "binary_version": "3.23.0-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "php-twig-cssinliner-extra",
            "binary_version": "3.23.0-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "php-twig-extra-bundle",
            "binary_version": "3.23.0-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "php-twig-html-extra",
            "binary_version": "3.23.0-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "php-twig-inky-extra",
            "binary_version": "3.23.0-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "php-twig-intl-extra",
            "binary_version": "3.23.0-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "php-twig-markdown-extra",
            "binary_version": "3.23.0-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "php-twig-string-extra",
            "binary_version": "3.23.0-2ubuntu0.1~esm1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46636.json"