{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-47184", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-18T22:07:37.434Z", "datePublished": "2026-07-17T18:25:07.387Z", "dateUpdated": "2026-07-17T18:25:07.387Z"}, "containers": {"cna": {"title": "Zeroconf: Unbounded DNS record cache allows LAN-local memory exhaustion via multicast flood", "problemTypes": [{"descriptions": [{"cweId": "CWE-770", "lang": "en", "description": "CWE-770: Allocation of Resources Without Limits or Throttling", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/python-zeroconf/python-zeroconf/security/advisories/GHSA-rfg2-pjw2-56x2", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/python-zeroconf/python-zeroconf/security/advisories/GHSA-rfg2-pjw2-56x2"}, {"name": "https://github.com/python-zeroconf/python-zeroconf/issues/1715", "tags": ["x_refsource_MISC"], "url": "https://github.com/python-zeroconf/python-zeroconf/issues/1715"}, {"name": "https://github.com/python-zeroconf/python-zeroconf/pull/1718", "tags": ["x_refsource_MISC"], "url": "https://github.com/python-zeroconf/python-zeroconf/pull/1718"}, {"name": "https://github.com/python-zeroconf/python-zeroconf/commit/0ad3f37b5b852b8f614d322283d148efb2cef6e4", "tags": ["x_refsource_MISC"], "url": "https://github.com/python-zeroconf/python-zeroconf/commit/0ad3f37b5b852b8f614d322283d148efb2cef6e4"}, {"name": "https://github.com/python-zeroconf/python-zeroconf/releases/tag/0.149.7", "tags": ["x_refsource_MISC"], "url": "https://github.com/python-zeroconf/python-zeroconf/releases/tag/0.149.7"}], "affected": [{"vendor": "python-zeroconf", "product": "python-zeroconf", "versions": [{"version": "< 0.149.7", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-17T18:25:07.387Z"}, "descriptions": [{"lang": "en", "value": "Zeroconf is a pure Python implementation of multicast DNS service discovery. Prior to 0.149.7, DNSCache._async_add inserted every response record into cache, _expirations, _expire_heap, and service_cache without a cap, allowing unauthenticated hosts on the local link over UDP/5353 (224.0.0.251 / ff02::fb) to multicast valid mDNS responses with unique names and cause memory exhaustion, slower cache lookups, slower async_expire passes, and broken discovery, registration, and ServiceBrowser callbacks. This issue is fixed in version 0.149.7."}], "source": {"advisory": "GHSA-rfg2-pjw2-56x2", "discovery": "UNKNOWN"}}}}

{}

{}

{}

{}