CVE-2026-46636

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-46636
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46636.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-46636
Aliases
  • GHSA-64jr-qjx4-w2fh
Downstream
Published
2026-09-04T22:07:35Z
Modified
2026-10-21T02:58:12Z
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
Summary
Twig: Sandbox method allowlist bypass via `Markup` subclass
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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-1336"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46636.json"
}
References

Affected packages

Git / github.com/twigphp/twig

Affected ranges

Type
GIT
Repo
https://github.com/twigphp/twig
Events
Introduced
2f106a80cc13b4260074e573fa017a770fe20350
Fixed
04ae1bfe9463c816cf72ca0abe7eae2c77a9a9ed
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "1.0.0"
                },
                {
                    "fixed":  "3.27.0"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "original_tag":  "v3.27.0",
            "range":  [
                {
                    "fixed":  "04ae1bfe9463c816cf72ca0abe7eae2c77a9a9ed"
                }
            ],
            "source":  "REFERENCES_TAG"
        },
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "3.27.0"
                }
            ],
            "source":  "DESCRIPTION"
        }
    ]
}

Affected versions

v1.*
v1.0.0
v1.1.0
v1.1.0-RC1
v1.1.0-RC2
v1.1.0-RC3
v1.1.1
v1.1.2
v1.10.0
v1.10.1
v1.10.2
v1.10.3
v1.11.0
v1.11.1
v1.12.0
v1.12.0-RC1
v1.12.1
v1.12.2
v1.12.3
v1.13.0
v1.13.1
v1.13.2
v1.14.0
v1.14.1
v1.14.2
v1.15.0
v1.15.1
v1.16.0
v1.16.1
v1.16.2
v1.16.3
v1.17.0
v1.18.0
v1.2.0
v1.2.0-RC1
v1.3.0
v1.3.0-RC1
v1.4.0
v1.4.0-RC1
v1.4.0-RC2
v1.5.0
v1.5.0-RC1
v1.5.0-RC2
v1.5.1
v1.6.0
v1.6.1
v1.6.2
v1.6.3
v1.6.4
v1.7.0
v1.8.0
v1.8.1
v1.8.2
v1.8.3
v1.9.0
v1.9.1
v1.9.2
v2.*
v2.0.0
v2.1.0
v2.2.0
v2.3.0
v2.3.1
v2.3.2
v2.4.0
v2.4.1
v2.4.2
v2.4.3
v2.4.4
v2.4.5
v2.4.6
v2.4.7
v2.4.8
v2.5.0
v2.6.0
v2.6.1
v2.6.2
v2.7.0
v2.7.1
v2.7.2
v2.7.3
v2.7.4
v2.8.0
v2.8.1
v3.*
v3.0.0
v3.0.0-BETA1
v3.0.1
v3.0.2
v3.0.3
v3.0.4
v3.0.5
v3.1.0
v3.1.1
v3.10.0
v3.10.1
v3.10.2
v3.10.3
v3.11.0
v3.12.0
v3.13.0
v3.14.0
v3.15.0
v3.16.0
v3.17.0
v3.17.1
v3.18.0
v3.19.0
v3.2.1
v3.20.0
v3.21.0
v3.21.1
v3.22.0
v3.22.1
v3.22.2
v3.23.0
v3.24.0
v3.25.0
v3.26.0
v3.3.0
v3.3.1
v3.3.10
v3.3.2
v3.3.3
v3.3.4
v3.3.5
v3.3.6
v3.3.7
v3.3.8
v3.3.9
v3.4.0
v3.4.1
v3.4.2
v3.4.3
v3.5.0
v3.5.1
v3.6.0
v3.6.1
v3.7.0
v3.7.1
v3.8.0
v3.9.0
v3.9.1
v3.9.2
v3.9.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46636.json"