CVE-2026-47184

01/תיאור (מקור, אנגלית)

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.

02/מוצרים מושפעים

paulsm: zeroconf

03/קישורים5

• github.com/python-zeroconf/python-zeroconf/security/advisories‮… Vendor AdvisoryPatch
• github.com/python-zeroconf/python-zeroconf/commit/0ad3f37b5b85‮… Patch
• github.com/python-zeroconf/python-zeroconf/issues/1715 Issue TrackingPatch
• github.com/python-zeroconf/python-zeroconf/pull/1718 Issue TrackingPatch
• github.com/python-zeroconf/python-zeroconf/releases/tag/0.149.7 Release Notes