Improper Validation of Specified Quantity in Input Affecting libp2p package, versions [0,]
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Test your applications- Snyk IDSNYK-PYTHON-LIBP2P-18313058
- published26 Jul 2026
- disclosed24 Jul 2026
- credittahaafarooq
Introduced: 24 Jul 2026
New CVE NOT AVAILABLE CWE-1284 (opens in a new tab)Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
A fix was pushed into the master branch but not yet published.
Overview
libp2p is a libp2p: The Python implementation of the libp2p networking stack
Affected versions of this package are vulnerable to Improper Validation of Specified Quantity in Input through the handle_incoming process. An attacker can cause the read loop to block indefinitely by sending a crafted frame with an oversized length field after completing a standard handshake, resulting in all streams on the connection becoming unresponsive.