CVE-2026-44837

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-44837", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-07T21:21:48.352Z", "datePublished": "2026-05-26T19:40:47.661Z", "dateUpdated": "2026-05-28T14:04:27.716Z"}, "containers": {"cna": {"title": "view_component: System Test Entry Point Path Check Allows Sibling Directory Escape", "problemTypes": [{"descriptions": [{"cweId": "CWE-187", "lang": "en", "description": "CWE-187: Partial String Comparison", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/ViewComponent/view_component/security/advisories/GHSA-hg3h-g7xc-f7vp", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/ViewComponent/view_component/security/advisories/GHSA-hg3h-g7xc-f7vp"}], "affected": [{"vendor": "ViewComponent", "product": "view_component", "versions": [{"version": ">= 3.0.0, < 4.9.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-26T19:40:47.661Z"}, "descriptions": [{"lang": "en", "value": "view_component is a framework for building reusable, testable, and encapsulated view components in Ruby on Rails. From 3.0.0 to 4.9.0, the system test entrypoint canonicalizes a user-controlled file path with File.realpath, then checks whether the resolved path starts with the temp directory path. This is not a safe containment check because sibling directories can share the same string prefix. This vulnerability is fixed in 4.9.0."}], "source": {"advisory": "GHSA-hg3h-g7xc-f7vp", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/ViewComponent/view_component/security/advisories/GHSA-hg3h-g7xc-f7vp", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-28T14:03:17.325766Z", "id": "CVE-2026-44837", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-28T14:04:27.716Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-44837", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-28T14:03:17.325766Z"}}}], "references": [{"url": "https://github.com/ViewComponent/view_component/security/advisories/GHSA-hg3h-g7xc-f7vp", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-28T14:04:14.303Z"}}], "cna": {"title": "view_component: System Test Entry Point Path Check Allows Sibling Directory Escape", "source": {"advisory": "GHSA-hg3h-g7xc-f7vp", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "ViewComponent", "product": "view_component", "versions": [{"status": "affected", "version": ">= 3.0.0, < 4.9.0"}]}], "references": [{"url": "https://github.com/ViewComponent/view_component/security/advisories/GHSA-hg3h-g7xc-f7vp", "name": "https://github.com/ViewComponent/view_component/security/advisories/GHSA-hg3h-g7xc-f7vp", "tags": ["x_refsource_CONFIRM"]}], "descriptions": [{"lang": "en", "value": "view_component is a framework for building reusable, testable, and encapsulated view components in Ruby on Rails. From 3.0.0 to 4.9.0, the system test entrypoint canonicalizes a user-controlled file path with File.realpath, then checks whether the resolved path starts with the temp directory path. This is not a safe containment check because sibling directories can share the same string prefix. This vulnerability is fixed in 4.9.0."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-187", "description": "CWE-187: Partial String Comparison"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-26T19:40:47.661Z"}}}, "cveMetadata": {"cveId": "CVE-2026-44837", "state": "PUBLISHED", "dateUpdated": "2026-05-28T14:04:27.716Z", "dateReserved": "2026-05-07T21:21:48.352Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-05-26T19:40:47.661Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "view_component", "vendor": "ViewComponent", "versions": [{"status": "affected", "version": ">= 3.0.0, < 4.9.0"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:viewcomponent:view_component:*:*:*:*:*:ruby:*:*", "matchCriteriaId": "E57ADC3B-788F-4E63-9524-8014ECEE31B6", "versionEndExcluding": "4.9.0", "versionStartIncluding": "3.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "view_component is a framework for building reusable, testable, and encapsulated view components in Ruby on Rails. From 3.0.0 to 4.9.0, the system test entrypoint canonicalizes a user-controlled file path with File.realpath, then checks whether the resolved path starts with the temp directory path. This is not a safe containment check because sibling directories can share the same string prefix. This vulnerability is fixed in 4.9.0."}, {"lang": "es", "value": "view_component es un framework para construir componentes de vista reutilizables, testeables y encapsulados en Ruby on Rails. Desde 3.0.0 hasta 4.9.0, el punto de entrada de la prueba del sistema canoniza una ruta de archivo controlada por el usuario con File.realpath, luego verifica si la ruta resuelta comienza con la ruta del directorio temporal. Esta no es una verificaci\u00f3n de contenci\u00f3n segura porque los directorios hermanos pueden compartir el mismo prefijo de cadena. Esta vulnerabilidad est\u00e1 corregida en 4.9.0."}], "id": "CVE-2026-44837", "lastModified": "2026-07-24T11:10:00.170", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-44837", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-28T14:03:17.325766Z", "version": "2.0.3"}}]}, "published": "2026-05-26T21:16:38.853", "references": [{"source": "security-advisories@github.com", "tags": ["Exploit", "Mitigation", "Vendor Advisory"], "url": "https://github.com/ViewComponent/view_component/security/advisories/GHSA-hg3h-g7xc-f7vp"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Mitigation", "Vendor Advisory"], "url": "https://github.com/ViewComponent/view_component/security/advisories/GHSA-hg3h-g7xc-f7vp"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-187"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.0.0,4.9.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "view_component", "source": "cna", "vendor": "ViewComponent"}, "product": "view_component", "vendor": "viewcomponent"}], "created": "2026-05-26T21:30:16.145632+00:00", "updated": "2026-05-26T22:30:18.413283+00:00", "vendors": ["viewcomponent", "viewcomponent$PRODUCT$view_component"]}