CVE-2026-30615

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A prompt injection vulnerability in Windsurf 1.9544.26 allows remote attackers to execute arbitrary commands on a victim system. When Windsurf processes attacker-controlled HTML content, malicious instructions can cause unauthorized modification of the local MCP configuration and automatic registration of a malicious MCP STDIO server, resulting in execution of arbitrary commands without further user interaction. Successful exploitation may allow attackers to execute commands on behalf of the user, persist malicious MCP configuration changes, and access sensitive information exposed through the application."}], "id": "CVE-2026-30615", "lastModified": "2026-06-17T10:32:49.920", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.0, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 5.5, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-30615", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-04-15T17:53:59.688305Z", "version": "2.0.3"}}]}, "published": "2026-04-15T16:16:36.177", "references": [{"source": "cve@mitre.org", "url": "https://www.ox.security/blog/mcp-supply-chain-advisory-rce-vulnerabilities-across-the-ai-ecosystem/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-77"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "1.9544.26"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "windsurf", "vendor": "windsurf"}], "analysis": {"en": {"generated_at": "2026-04-16T02:33:53.993410+00:00", "value": {"mitigation_remediation": ["Upgrade Windsurf to a patched version once a fix is released by the vendor", "Implement input validation or sanitization for HTML content processed by Windsurf to prevent injection of malicious commands", "Disable or restrict automatic registration of MCP STDIO servers to prevent unauthorized server registrations"], "summary": {"action": "Apply Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "Windsurf 1.9544.26. No other vendor or product versions are listed, and the vulnerability is specific to this version.", "description_and_impact": "A prompt injection vulnerability exists in Windsurf version 1.9544.26. The flaw allows attackers who supply malicious HTML content to inject commands that modify the local MCP configuration. The injected instructions trigger the automatic registration of a rogue MCP STDIO server, allowing the attacker to execute arbitrary system commands on the host machine with the application\u2019s privileges. This can lead to the execution of malicious commands, persistence of unauthorized configuration changes, and disclosure of sensitive data exposed through the application.", "risk_and_exploitability": "The CVSS score of 8 indicates a high severity remote code execution flaw. EPSS is not available and the vulnerability is not listed in CISA\u2019s KEV catalog, implying no publicly known exploits yet. The most likely attack vector is remote, with an attacker supplying crafted HTML content that Windsurf will process. Successful exploitation requires the attacker to deliver such content to the application; once processed, the attacker can execute arbitrary system commands, persist configuration changes, and access sensitive information."}}}}, "created": "2026-04-15T21:02:36.139533+00:00", "title": "Prompt Injection in Windsurf Enables Remote Command Execution", "updated": "2026-04-16T02:45:06.077889+00:00", "vendors": ["windsurf", "windsurf$PRODUCT$windsurf"]}