{"id":"CVE-2026-46640","state":"PUBLISHED","title":"Twig: Arbitrary PHP code execution via `_self.(<string>)` macro-reference compilation","description":"Twig is a template language for PHP. From 3.15.0 until 3.26.0, _self.(<string>) 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.","publishedAt":"2026-07-14T21:22:57.332Z","updatedAt":"2026-07-16T03:55:34.985Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"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","source":"GitHub_M"},"assigner":"GitHub_M","products":["twigphp Twig"],"affected":[{"vendor":"twigphp","product":"Twig","versions":[{"version":">= 3.15.0, < 3.26.0","status":"affected"}]}],"references":["https://github.com/twigphp/Twig/security/advisories/GHSA-45vw-wh46-2vx8","https://github.com/twigphp/Twig/commit/324fa60545694fa6abe85ded9befcb82e1066bc2","https://github.com/twigphp/Twig/releases/tag/v3.26.0"],"weaknesses":["CWE-94"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/46xxx/CVE-2026-46640.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46640","state":"PUBLISHED","datePublished":"2026-07-14T21:22:57.332Z","dateUpdated":"2026-07-16T03:55:34.985Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-15T20:11:54.584Z"},"containers":{"cna":{"title":"Twig: Arbitrary PHP code execution via `_self.(<string>)` macro-reference compilation","descriptions":[{"lang":"en","value":"Twig is a template language for PHP. From 3.15.0 until 3.26.0, _self.(<string>) 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."}],"affected":[{"vendor":"twigphp","product":"Twig","versions":[{"version":">= 3.15.0, < 3.26.0","status":"affected"}]}],"references":[{"url":"https://github.com/twigphp/Twig/security/advisories/GHSA-45vw-wh46-2vx8","name":"https://github.com/twigphp/Twig/security/advisories/GHSA-45vw-wh46-2vx8","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/twigphp/Twig/commit/324fa60545694fa6abe85ded9befcb82e1066bc2","name":"https://github.com/twigphp/Twig/commit/324fa60545694fa6abe85ded9befcb82e1066bc2","tags":["x_refsource_MISC"]},{"url":"https://github.com/twigphp/Twig/releases/tag/v3.26.0","name":"https://github.com/twigphp/Twig/releases/tag/v3.26.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH","vectorString":"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","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-94","lang":"en","description":"CWE-94: Improper Control of Generation of Code ('Code Injection')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-14T21:22:57.332Z"},"source":{"advisory":"GHSA-45vw-wh46-2vx8","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-15T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-46640"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-16T03:55:34.985Z"}}]}}}