CVE-2026-42085

{"id": "CVE-2026-42085", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-42085", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-04T18:43:28.813129Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "OpenC3", "product": "cosmos", "versions": [{"status": "affected", "version": "< 6.10.5"}, {"status": "affected", "version": ">= 7.0.0.pre.rc1, < 7.0.0-rc3"}]}]}], "published": "2026-05-04T18:16:30.510", "references": [{"url": "https://github.com/OpenC3/cosmos/commit/9957a9fa460c0c0cf5cdbf6a5931bbdd025246a5", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/OpenC3/cosmos/commit/e6efccbd148ba0e3361c5891027f2373aa140d42", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/OpenC3/cosmos/releases/tag/v6.10.5", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/OpenC3/cosmos/releases/tag/v7.0.0-rc3", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/OpenC3/cosmos/security/advisories/GHSA-4jvx-93h3-f45h", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/OpenC3/cosmos/security/advisories/GHSA-4jvx-93h3-f45h", "tags": ["Exploit", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-23"}]}], "descriptions": [{"lang": "en", "value": "OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. Prior to versions 6.10.5 and 7.0.0-rc3, OpenC3 COSMOS contains a design flaw in the save_tool_config() function that allows saving tool configuration files at arbitrary locations inside the shared /plugins directory tree by supplying crafted configuration filenames. Although the implementation sufficiently mitigates standard path traversal attacks, by canonicalizing filename to an absolute path, all plugins share this same root directory. That enables users to create arbitrary file structures and overwrite existing configuration files within the shared /plugins directory. This issue has been patched in versions 6.10.5 and 7.0.0-rc3."}, {"lang": "es", "value": "OpenC3 COSMOS proporciona la funcionalidad necesaria para enviar comandos a y recibir datos de uno o m\u00e1s sistemas embebidos. Antes de las versiones 6.10.5 y 7.0.0-rc3, OpenC3 COSMOS contiene un fallo de dise\u00f1o en la funci\u00f3n save_tool_config() que permite guardar archivos de configuraci\u00f3n de herramientas en ubicaciones arbitrarias dentro del \u00e1rbol de directorios compartido /plugins al proporcionar nombres de archivo de configuraci\u00f3n manipulados. Aunque la implementaci\u00f3n mitiga suficientemente los ataques est\u00e1ndar de salto de ruta, al canonizar el nombre de archivo a una ruta absoluta, todos los plugins comparten este mismo directorio ra\u00edz. Eso permite a los usuarios crear estructuras de archivos arbitrarias y sobrescribir archivos de configuraci\u00f3n existentes dentro del directorio compartido /plugins. Este problema ha sido parcheado en las versiones 6.10.5 y 7.0.0-rc3."}], "lastModified": "2026-10-26T19:10:00.163", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:openc3:cosmos:*:*:*:*:open_source:*:*:*", "vulnerable": true, "matchCriteriaId": "930EEABE-50A2-4005-AE3C-2D14AF5A60BD", "versionEndExcluding": "6.10.5"}, {"criteria": "cpe:2.3:a:openc3:cosmos:7.0.0:rc1:*:*:open_source:*:*:*", "vulnerable": true, "matchCriteriaId": "38B72355-49A3-4D2F-BFDB-EE53C9E2C7AD"}, {"criteria": "cpe:2.3:a:openc3:cosmos:7.0.0:rc2:*:*:open_source:*:*:*", "vulnerable": true, "matchCriteriaId": "13E3A0EA-1085-4505-80BB-C0B133EC3498"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}