Allocation of Resources Without Limits or Throttling Affecting pywebtransport package, versions [,0.11.1)
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- published4 Feb 2026
- disclosed1 Feb 2026
- creditUnknown
Introduced: 1 Feb 2026
CVE NOT AVAILABLE CWE-770 (opens in a new tab)Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade pywebtransport to version 0.11.1 or higher.
Overview
pywebtransport is an An async-native WebTransport stack for Python.
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the _parse_capsules() function due to missing HTTP/3 capsule size limits. An attacker can exhaust system memory resources by sending capsule payloads exceeding default maximum size.