CVE-2026-31156

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:openplcproject:openplc_v3_firmware:2024-03-09:*:*:*:*:*:*:*", "matchCriteriaId": "41B53703-1846-4EBB-9033-0E839072034F", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:openplcproject:openplc_v3:-:*:*:*:*:*:*:*", "matchCriteriaId": "6861E863-E6AC-4BFB-8CDE-2328A045540D", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A path injection vulnerability exists in OpenPLC v3 (2c82b0e79c53f8c1f1458eee15fec173400d6e1a) as the binary program compiled from glue_generator.cpp does not perform any validation on the file path parameters passed via the command line. The user-controlled input parameters are directly passed to the underlying file operation functions (fopen/ifstream/ofstream) for file reading and writing. An attacker can exploit this vulnerability by constructing a malicious path to read arbitrary readable files."}, {"lang": "es", "value": "Existe una vulnerabilidad de inyecci\u00f3n de ruta en OpenPLC v3 (2c82b0e79c53f8c1f1458eee15fec173400d6e1a) ya que el programa binario compilado de glue_generator.cpp no realiza ninguna validaci\u00f3n en los par\u00e1metros de ruta de archivo pasados a trav\u00e9s de la l\u00ednea de comandos. Los par\u00e1metros de entrada controlados por el usuario se pasan directamente a las funciones subyacentes de operaci\u00f3n de archivos (fopen/ifstream/ofstream) para lectura y escritura de archivos. Un atacante puede explotar esta vulnerabilidad construyendo una ruta maliciosa para leer archivos arbitrarios legibles."}], "id": "CVE-2026-31156", "lastModified": "2026-10-19T22:10:00.130", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-31156", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-14T13:56:11.488350Z", "version": "2.0.3"}}]}, "published": "2026-05-13T16:16:38.763", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/unicorn-hyh/CVE-2026-31156"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/unicorn-hyh/CVE-2026-31156"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3"}}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}]}, "product": "openplc", "vendor": "openplc"}], "created": "2026-05-13T17:00:14.848136+00:00", "title": "OpenPLC v3 Path Injection Allows Arbitrary File Read via Command-Line Parameters", "updated": "2026-05-17T19:42:15.958249+00:00", "vendors": ["openplc", "openplc$PRODUCT$openplc"]}