Allocation of Resources Without Limits or Throttling Affecting python3-zeroconf package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.39% (32nd percentile)

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  • Snyk IDSNYK-RHEL8-PYTHON3ZEROCONF-18603229
  • published10 Aug 2026
  • disclosed17 Jul 2026

Introduced: 17 Jul 2026

CVE-2026-47184  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:8 python3-zeroconf.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-zeroconf package and not the python3-zeroconf package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1