{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-87987", "assignerOrgId": "6f8de1f0-f67e-45a6-b68f-98777fdb759c", "state": "PUBLISHED", "assignerShortName": "HiddenLayer", "dateReserved": "2026-09-09T19:14:18.451Z", "datePublished": "2026-09-11T14:34:01.384Z", "dateUpdated": "2026-09-11T14:59:37.174Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "6f8de1f0-f67e-45a6-b68f-98777fdb759c", "shortName": "HiddenLayer", "dateUpdated": "2026-09-11T14:34:01.384Z" }, "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-15", "description": "CWE-15 External control of system or configuration setting", "type": "CWE" } ] } ], "impacts": [ { "capecId": "CAPEC-13", "descriptions": [ { "lang": "en", "value": "CAPEC-13 Subverting Environment Variable Values" } ] } ], "affected": [ { "vendor": "mistralai", "product": "mistral-vibe", "repo": "https://github.com/mistralai/mistral-vibe", "versions": [ { "status": "affected", "version": "2.6.0", "lessThanOrEqual": "*", "versionType": "semver" } ], "defaultStatus": "unaffected" } ], "descriptions": [ { "lang": "en", "value": "An arbitrary code execution vulnerability in Mistral Vibe allows an attacker to bypass command permission checks using environment variable assignments preceding allowlisted commands. These assignments are excluded from inspection, enabling attacker-controlled environment variables to cause arbitrary code execution without user approval.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "An arbitrary code execution vulnerability in Mistral Vibe allows an attacker to bypass command permission checks using environment variable assignments preceding allowlisted commands. These assignments are excluded from inspection, enabling attacker-controlled environment variables to cause arbitrary code execution without user approval." } ] } ], "references": [ { "url": "https://www.hiddenlayer.com/sai-security-advisory/2026-09-mistral-vibe5" } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV4_0": { "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "CRITICAL", "baseScore": 10, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H" } } ], "source": { "discovery": "UNKNOWN" }, "x_generator": { "engine": "Vulnogram 1.0.5" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-09-11T14:59:24.182218Z", "id": "CVE-2026-87987", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-11T14:59:37.174Z" } } ] } }