CVE-2026-87986

{"id": "CVE-2026-87986", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-87986", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-09-11T14:53:56.024113Z"}}], "cvssMetricV40": [{"type": "Secondary", "source": "6f8de1f0-f67e-45a6-b68f-98777fdb759c", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 10.0, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "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/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "6f8de1f0-f67e-45a6-b68f-98777fdb759c", "affectedData": [{"repo": "https://github.com/mistralai/mistral-vibe", "vendor": "mistralai", "product": "mistral-vibe", "versions": [{"status": "affected", "version": "1.3.4", "versionType": "semver", "lessThanOrEqual": "*"}], "defaultStatus": "unaffected"}]}], "published": "2026-09-11T15:17:07.653", "references": [{"url": "https://www.hiddenlayer.com/sai-security-advisory/2026-09-mistral-vibe4", "source": "6f8de1f0-f67e-45a6-b68f-98777fdb759c"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "6f8de1f0-f67e-45a6-b68f-98777fdb759c", "description": [{"lang": "en", "value": "CWE-228"}]}], "descriptions": [{"lang": "en", "value": "An arbitrary code execution vulnerability in Mistral Vibe allows an attacker to bypass command permission checks using shell constructs it's parser cannot interpret. Unparsed portions are omitted from inspection, enabling embedded commands to execute on the user's system without approval."}], "lastModified": "2026-09-11T17:35:21.440", "sourceIdentifier": "6f8de1f0-f67e-45a6-b68f-98777fdb759c"}