CVE-2026-40180

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Prior to 2.16.0 and 2.15.0-lts, the unzip() method in ApicurioCodegenWrapper.java extracts ZIP entries without validating that the resolved file path stays within the intended output directory. At line 101, the destination is constructed as new File(toOutputDir, entry.getName()) and the content is written immediately. A malicious ZIP archive containing entries with path traversal sequences (e.g., ../../malicious.java) would write files outside the target directory. This vulnerability is fixed in 2.16.0 and 2.15.0-lts."}, {"lang": "es", "value": "Quarkus OpenAPI Generator son las extensiones de Quarkus para la generaci\u00f3n de clientes Rest y la generaci\u00f3n de stubs de servidor. Antes de las versiones 2.16.0 y 2.15.0-lts, el m\u00e9todo unzip() en ApicurioCodegenWrapper.java extrae entradas ZIP sin validar que la ruta de archivo resuelta permanezca dentro del directorio de salida previsto. En la l\u00ednea 101, el destino se construye como new File(toOutputDir, entry.getName()) y el contenido se escribe inmediatamente. Un archivo ZIP malicioso que contenga entradas con secuencias de salto de ruta (por ejemplo, .. / .. / malicious.java) escribir\u00eda archivos fuera del directorio objetivo. Esta vulnerabilidad est\u00e1 corregida en las versiones 2.16.0 y 2.15.0-lts."}], "id": "CVE-2026-40180", "lastModified": "2026-10-26T21:10:00.170", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-40180", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-04-13T20:53:43.210720Z", "version": "2.0.3"}}]}, "published": "2026-04-10T20:16:23.260", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/quarkiverse/quarkus-openapi-generator/commit/08b406414ff30ed192e86c7fa924e57565534ff0"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/quarkiverse/quarkus-openapi-generator/commit/e2a9c629a3df719abc74569a3795c265fd0e1239"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/quarkiverse/quarkus-openapi-generator/security/advisories/GHSA-jx2w-vp7f-456q"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/quarkiverse/quarkus-openapi-generator/security/advisories/GHSA-jx2w-vp7f-456q"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.15.0-lts)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.16.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "quarkus-openapi-generator", "source": "cna", "vendor": "quarkiverse"}, "product": "quarkus-openapi-generator", "vendor": "quarkiverse"}], "analysis": {"en": {"generated_at": "2026-04-10T21:51:14.829727+00:00", "value": {"mitigation_remediation": ["Apply the official patch by upgrading quarkus-openapi-generator to version 2.16.0 or 2.15.0\u2011lts or later.", "If an upgrade cannot be performed immediately, ensure that no untrusted ZIP archives are processed by the openapi generator in production.", "Add validation to reject ZIP entries containing path traversal characters before extraction if upgrading is not feasible.", "Monitor system logs for unexpected file writes or creation of files outside intended directories."], "summary": {"action": "Immediate Patch", "impact": "Directory Traversal leading to arbitrary file write"}, "threat_synthesis": {"affected_systems": "This vulnerability affects the quarkus-openapi-generator extension provided by Quarkus, specifically versions prior to 2.16.0 and the 2.15.0\u2011lts release. The issue resides in the ApicurioCodegenWrapper component within that extension.", "description_and_impact": "The unzip() method in ApicurioCodegenWrapper extracts ZIP entries without validating that the resolved file path remains within the intended output directory. A malicious ZIP archive containing path traversal sequences such as ../../malicious.java can result in files being written outside the target directory. This allows an attacker to overwrite critical files or introduce malicious code in trusted locations, potentially compromising the integrity of the application.", "risk_and_exploitability": "The CVSS score of 7.7 assigns high severity. EPSS information is not available, and the vulnerability has not been listed in the CISA KEV catalog. Based on the description, it is inferred that the attacker would need to supply a crafted ZIP archive to the vulnerable code; the likely attack vector therefore depends on how the unzip functionality is exposed\u2014such as through file uploads, API endpoints, or build scripts. Explicit exploitation details are not disclosed in the advisory, so the exact conditions for a successful attack remain unspecified."}}}}, "created": "2026-04-13T12:42:43.284025+00:00", "updated": "2026-04-13T12:57:31.414754+00:00", "vendors": ["quarkiverse", "quarkiverse$PRODUCT$quarkus-openapi-generator"]}