CVE-2026-33139

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{"affected": [{"affectedData": [{"product": "PySpector", "vendor": "ParzivalHack", "versions": [{"status": "affected", "version": "< 0.1.7"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:parzivalhack:pyspector:*:*:*:*:*:python:*:*", "matchCriteriaId": "1C1B240D-CB1E-449D-8AB2-83C1E9D6B316", "versionEndExcluding": "0.1.7", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "PySpector is a static analysis security testing (SAST) Framework engineered for modern Python development workflows. PySpector versions 0.1.6 and prior are affected by a security validation bypass in the plugin system. The validate_plugin_code() function in plugin_system.py, performs static AST analysis to block dangerous API calls before a plugin is trusted and executed. However, the internal resolve_name() helper only handles ast.Name and ast.Attribute node types, returning None for all others. When a plugin uses indirect function calls via getattr() (such as getattr(os, 'system')) the outer call's func node is of type ast.Call, causing resolve_name() to return None, and the security check to be silently skipped. The plugin incorrectly passes the trust workflow, and executes arbitrary system commands on the user's machine when loaded. This issue has been patched in version 0.1.7."}, {"lang": "es", "value": "PySpector es un framework de pruebas de seguridad de an\u00e1lisis est\u00e1tico (SAST) dise\u00f1ado para flujos de trabajo de desarrollo de Python modernos. Las versiones 0.1.6 y anteriores de PySpector est\u00e1n afectadas por una omisi\u00f3n de validaci\u00f3n de seguridad en el sistema de plugins. La funci\u00f3n validate_plugin_code() en plugin_system.py, realiza un an\u00e1lisis AST est\u00e1tico para bloquear llamadas peligrosas a la API antes de que un plugin sea confiable y ejecutado. Sin embargo, la funci\u00f3n auxiliar interna resolve_name() solo maneja los tipos de nodo ast.Name y ast.Attribute, devolviendo None para todos los dem\u00e1s. Cuando un plugin utiliza llamadas a funciones indirectas a trav\u00e9s de getattr() (como getattr(os, 'system')) el nodo func de la llamada externa es de tipo ast.Call, lo que provoca que resolve_name() devuelva None, y que la comprobaci\u00f3n de seguridad se omita silenciosamente. El plugin pasa incorrectamente el flujo de trabajo de confianza y ejecuta comandos de sistema arbitrarios en la m\u00e1quina del usuario cuando se carga. Este problema ha sido parcheado en la versi\u00f3n 0.1.7."}], "id": "CVE-2026-33139", "lastModified": "2026-06-17T10:37:00.780", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.3, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "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": "ACTIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/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": "LOW", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-33139", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-03-20T20:14:08.844296Z", "version": "2.0.3"}}]}, "published": "2026-03-20T20:16:48.917", "references": [{"source": "security-advisories@github.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/ParzivalHack/PySpector/security/advisories/GHSA-v3xv-8vc3-h2m6"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-184"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.1.7)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "PySpector", "source": "cna", "vendor": "ParzivalHack"}, "product": "pyspector", "vendor": "parzivalhack"}], "analysis": {"en": {"generated_at": "2026-03-24T16:26:57.602545+00:00", "value": {"mitigation_remediation": ["Apply PySpector version 0.1.7 or later, which contains a patch that correctly validates plugin code.", "For environments that must continue using vulnerable versions, delete or rename any untrusted plugin files from the plugin directory to prevent accidental loading.", "Verify the source of any plugin before adding it to the project, ensuring it comes from a trusted contributor and does not contain malicious code."], "summary": {"action": "Immediate Patch", "impact": "Arbitrary code execution via plugin sandbox bypass"}, "threat_synthesis": {"affected_systems": "The affected product is PySpector, developed by ParzivalHack. All releases 0.1.6 and earlier are vulnerable; the vulnerability was fixed in version 0.1.7.", "description_and_impact": "PySpector versions 0.1.6 and earlier contain a validation bypass in the plugin system. The validate_plugin_code() function performs static AST analysis to block dangerous API calls, but its internal name resolver only processes ast.Name and ast.Attribute nodes. When a plugin uses indirect calls such as getattr(os, 'system'), the function node is ast.Call and the resolver returns None, causing the security check to be skipped. The plugin is then trusted and executed, allowing arbitrary system commands to run on the host machine. This results in full code execution where the attacker can run any command with the privileges of the user running PySpector.", "risk_and_exploitability": "The CVSS score of 8.3 reflects high severity, and the EPSS of less than 1% indicates a low but non-negligible exploitation probability. The vulnerability is not listed in the CISA KEV catalog. Exploitation requires the attacker to supply a malicious plugin that uses indirect function calls; once loaded by an untrusted user or automated test environment, the plugin can execute arbitrary code with the privileges of the user running PySpector."}}}}, "created": "2026-03-23T09:52:52.596543+00:00", "updated": "2026-03-25T14:34:47.856168+00:00", "vendors": ["parzivalhack", "parzivalhack$PRODUCT$pyspector"]}