{"id":"CVE-2025-29606","aliases":["GHSA-x8c6-gj59-6rx8","PYSEC-2026-1536"],"title":"py-libp2p is vulnerable to DoS attacks through use of large RSA keys","summary":"py-libp2p is vulnerable to DoS attacks through use of large RSA keys","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","vendor":"libp2p","product":"libp2p","ecosystem":"pip","affected":["libp2p < 0.2.3"],"patched":["libp2p 0.2.3"],"published":"2025-07-14","updated":"2026-07-07","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-x8c6-gj59-6rx8","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-29606"},{"url":"https://github.com/libp2p/py-libp2p/issues/526"},{"url":"https://github.com/libp2p/py-libp2p/pull/531/files"},{"url":"https://github.com/libp2p/py-libp2p/commit/e150d3153af30530ce61d751bc166e099f1ead7a"},{"url":"https://github.com/libp2p/py-libp2p"},{"url":"https://github.com/libp2p/py-libp2p/compare/v0.2.2...v0.2.3"}],"tags":["osv","pip"],"epss":0.00331,"epssPercentile":0.26563,"ingestedAt":"2026-07-08T18:25:54.147Z","slug":"CVE-2025-29606","body":"## Overview\n\npy-libp2p before 0.2.3 allows a peer to cause a denial of service (resource consumption) via a large RSA key.\n\n## Affected packages\n\n- `libp2p < 0.2.3`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `libp2p 0.2.3`","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}