CVE-2026-3680

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{"affected": [{"affectedData": [{"product": "biome-mcp-server", "vendor": "RyuzakiShinji", "versions": [{"status": "affected", "version": "1.0"}]}], "source": "cna@vuldb.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A security flaw has been discovered in RyuzakiShinji biome-mcp-server up to 1.0.0. Affected by this issue is some unknown functionality of the file biome-mcp-server.ts. Performing a manipulation results in command injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The patch is named 335e1727147efeef011f1ff8b05dd751d8a660be. Applying a patch is the recommended action to fix this issue."}, {"lang": "es", "value": "Una falla de seguridad ha sido descubierta en RyuzakiShinji biome-mcp-server hasta 1.0.0. Afectada por este problema es alguna funcionalidad desconocida del archivo biome-mcp-server.ts. Realizar una manipulaci\u00f3n resulta en inyecci\u00f3n de comandos. El ataque puede ser iniciado remotamente. El exploit ha sido liberado al p\u00fablico y puede ser usado para ataques. El parche se llama 335e1727147efeef011f1ff8b05dd751d8a660be. Aplicar un parche es la acci\u00f3n recomendada para solucionar este problema."}], "id": "CVE-2026-3680", "lastModified": "2026-06-17T10:44:00.090", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 6.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.4, "source": "cna@vuldb.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 2.1, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "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": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-3680", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-11T16:22:53.764237Z", "version": "2.0.3"}}]}, "published": "2026-03-07T23:15:47.850", "references": [{"source": "cna@vuldb.com", "url": "https://github.com/RyuzakiShinji/biome-mcp-server/"}, {"source": "cna@vuldb.com", "url": "https://github.com/RyuzakiShinji/biome-mcp-server/pull/1"}, {"source": "cna@vuldb.com", "url": "https://github.com/RyuzakiShinji/biome-mcp-server/pull/1/changes/335e1727147efeef011f1ff8b05dd751d8a660be"}, {"source": "cna@vuldb.com", "url": "https://github.com/user-attachments/files/25466715/biome-mcp-server_security_advisory.pdf"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/?ctiid.349582"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/?id.349582"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/?submit.765399"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-74"}, {"lang": "en", "value": "CWE-77"}], "source": "cna@vuldb.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "1.0"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "biome-mcp-server", "source": "cna", "vendor": "RyuzakiShinji"}, "product": "biome-mcp-server", "vendor": "ryuzakishinji"}], "analysis": {"en": {"generated_at": "2026-04-16T10:44:40.766249+00:00", "value": {"mitigation_remediation": ["Apply the official patch identified by commit 335e1727147efeef011f1ff8b05dd751d8a660be to the biome-mcp-server source code or deploy a newer patched release.", "Sanitize all input parameters received by biome-mcp-server and remove any calls that allow raw command execution.", "Restrict network exposure of biome-mcp-server to trusted users or subnets and enforce strict access controls so that only authorized systems can invoke the affected functionalities."], "summary": {"action": "Immediate Patch", "impact": "Remote Command Execution"}, "threat_synthesis": {"affected_systems": "The issue affects RyuzakiShinji\u2019s biome\u2011mcp\u2011server up to version 1.0.0. Any deployment that has not incorporated the official patch or a newer version beyond 1.0.0 is vulnerable.", "description_and_impact": "The vulnerability resides in the biome\u2011mcp\u2011server project in the file biome\u2011mcp\u2011server.ts and allows an attacker to inject and execute arbitrary operating\u2011system commands. Input is not properly validated, leading to a classic command injection flaw. An attacker can trigger the flaw remotely without any special privileges, potentially compromising the entire host where the server is running.", "risk_and_exploitability": "With a CVSS score of 5.3 and an EPSS score of 2%, the vulnerability is considered moderate but not rare. The exploit has already been released publicly and could be used in remote attacks. The vulnerability is not listed in CISA\u2019s KEV catalog, but its remote nature and the availability of a public exploit raise significant risk. The recommended mitigation is to apply the patch identified by commit 335e1727147efeef011f1ff8b05dd751d8a660be immediately."}}}}, "created": "2026-03-09T10:03:50.101275+00:00", "updated": "2026-04-16T10:45:26.017064+00:00", "vendors": ["ryuzakishinji", "ryuzakishinji$PRODUCT$biome-mcp-server"]}