Allocation of Resources Without Limits or Throttling Affecting zeroconf package, versions [,0.149.12)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Allocation of Resources Without Limits or Throttling vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-PYTHON-ZEROCONF-17318192
- published12 Jun 2026
- disclosed11 Jun 2026
- creditUnknown
Introduced: 11 Jun 2026
CVE-2026-48045 (opens in a new tab)How to fix?
Upgrade zeroconf to version 0.149.12 or higher.
Overview
zeroconf is a Pure Python Multicast DNS Service Discovery Library (Bonjour/Avahi compatible)
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the AsyncListener.handle_query_or_defer() function. An attacker can exhaust system memory and degrade service availability by sending a flood of spoofed, truncated mDNS queries from unauthenticated hosts on the local network, causing unbounded queue growth and excessive CPU usage.