{"id":"CVE-2026-46640","summary":"Twig: Arbitrary PHP code execution via `_self.(\u003cstring\u003e)` macro-reference compilation","details":"Twig is a template language for PHP. From 3.15.0 until 3.26.0, _self.(\u003cstring\u003e) and import-alias dynamic attribute syntax can concatenate an attacker-controlled string into a MacroReferenceExpression name without identifier validation, causing raw PHP to be emitted into the generated template source and executed at template-load time. This issue is fixed in version 3.26.0.","aliases":["GHSA-45vw-wh46-2vx8"],"modified":"2026-07-17T03:45:29.112074258Z","published":"2026-07-14T21:22:57.332Z","related":["CGA-8q5m-m4rj-ffrp"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46640.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-94"]},"references":[{"type":"WEB","url":"https://github.com/twigphp/Twig/releases/tag/v3.26.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46640.json"},{"type":"ADVISORY","url":"https://github.com/twigphp/Twig/security/advisories/GHSA-45vw-wh46-2vx8"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46640"},{"type":"FIX","url":"https://github.com/twigphp/Twig/commit/324fa60545694fa6abe85ded9befcb82e1066bc2"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/twigphp/twig","events":[{"introduced":"2d5b3964cc21d0188633d7ddce732dc8e874db02"},{"fixed":"1fcae487b180d78e6351f4e0afa91f9eab96a2bc"},{"fixed":"324fa60545694fa6abe85ded9befcb82e1066bc2"}],"database_specific":{"cpe":"cpe:2.3:a:symfony:twig:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"3.15.0"},{"fixed":"3.26.0"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["v3.25.0","v3.24.0","v3.23.0","v3.22.2","v3.22.1","v3.22.0","v3.21.1","v3.21.0","v3.20.0","v3.19.0","v3.18.0","v3.17.1","v3.17.0","v3.16.0","v3.15.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46640.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}