{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-49471", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-30T04:17:43.094Z", "datePublished": "2026-07-07T20:50:50.545Z", "dateUpdated": "2026-07-07T20:50:50.545Z"}, "containers": {"cna": {"title": "Serena: Unauthenticated Flask dashboard on fixed port enables DNS rebinding \u2192 memory poisoning \u2192 RCE", "problemTypes": [{"descriptions": [{"cweId": "CWE-306", "lang": "en", "description": "CWE-306: Missing Authentication for Critical Function", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-352", "lang": "en", "description": "CWE-352: Cross-Site Request Forgery (CSRF)", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.3, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/oraios/serena/security/advisories/GHSA-37h2-6p4f-mp3q", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/oraios/serena/security/advisories/GHSA-37h2-6p4f-mp3q"}, {"name": "https://github.com/oraios/serena/commit/016ccbe1c095a3eed7967737ac1d4df2754f5d96", "tags": ["x_refsource_MISC"], "url": "https://github.com/oraios/serena/commit/016ccbe1c095a3eed7967737ac1d4df2754f5d96"}, {"name": "https://github.com/oraios/serena/releases/tag/v1.5.2", "tags": ["x_refsource_MISC"], "url": "https://github.com/oraios/serena/releases/tag/v1.5.2"}], "affected": [{"vendor": "oraios", "product": "serena", "versions": [{"version": "< 1.5.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-07T20:50:50.545Z"}, "descriptions": [{"lang": "en", "value": "Serena is a powerful MCP toolkit for coding that provides semantic retrieval and editing capabilities. Prior to v1.5.2, Serena's built-in web dashboard exposes an unauthenticated Flask API on a fixed, predictable port, with no authentication, no CSRF protection, and no Host header validation. A DNS rebinding attack allows a malicious webpage to reach this API from any browser and write arbitrary content to the agent's persistent memory store, which the agent reads and acts on autonomously. Combined with execute_shell_command using shell=True, this creates a remote code execution chain requiring only that the victim visit a malicious webpage while Serena is running. This issue is fixed in version v1.5.2."}], "source": {"advisory": "GHSA-37h2-6p4f-mp3q", "discovery": "UNKNOWN"}}}}

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{}