CVE-2026-46634

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Source
https://cve.org/CVERecord?id=CVE-2026-46634
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46634.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-46634
Aliases
Downstream
Related
Published
2026-07-14T21:19:17.804Z
Modified
2026-07-31T03:33:42.300316859Z
Severity
  • 7.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Twig: `template_from_string()` escapes a SourcePolicy-driven sandbox via synthesized template name
Details

Twig is a template language for PHP. From 3.9.0 until 3.26.0, templatefromstring() compiles an inner template under a synthesized string_template<hash> name that can fall outside a SourcePolicyInterface sandbox decision, allowing a sandboxed template that can call templatefromstring and include to render an inner template without security policy enforcement. This issue is fixed in version 3.26.0.

Database specific 
{
    "cwe_ids": [
        "CWE-693"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46634.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/twigphp/twig

Affected ranges

Type
GIT
Repo
https://github.com/twigphp/twig
Events
Introduced
47857eebb197745f66369b76c044a2359e3cc5b9
Fixed
1fcae487b180d78e6351f4e0afa91f9eab96a2bc
Fixed
1cde8f2b62463f85d47995fc25f8241cb409d915
Database specific 
{
    "cpe": "cpe:2.3:a:symfony:twig:*:*:*:*:*:*:*:*",
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "3.9.0"
        },
        {
            "fixed": "3.26.0"
        }
    ]
}

Affected versions

v3.*
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
v3.20.0
v3.21.0
v3.21.1
v3.22.0
v3.22.1
v3.22.2
v3.23.0
v3.24.0
v3.25.0
v3.9.0
v3.9.1
v3.9.2
v3.9.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46634.json"