Vulnerability · Published Jul 14, 2025 · Assigned by mitre
CVE-2025-29606
Medium 4.3
In plain English
A medium-severity resource allocation without limits in py-libp2p from libp2p. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.4%top 68.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
py-libp2p before 0.2.3 allows a peer to cause a denial of service (resource consumption) via a large RSA key.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | libp2p | 0.2.3 | GHSA-x8c6-gj59-6rx8 |
| PyPI | libp2p | 0.2.3 | PYSEC-2026-1536 |
Affected products (as reported)
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L