{"schema_version":1,"title":"Libp2p Gossipsub vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 3 vulnerabilities in Libp2p Gossipsub: 0 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-86038, was published on 17 September 2026.","url":"https://junglewise.ai/threats/technologies/gossipsub","json_url":"https://junglewise.ai/threats/technologies/gossipsub.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/gossipsub","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":3,"all_time":3,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":1,"last_90_days":2,"last_365_days":3},"latest":[{"cve":"CVE-2026-86038","cvss":7.5,"epss":0.0019,"slug":"cve-2026-86038-libp2p-gossipsub-message-authentication-bypass-in-rsa-peer-ids","title":"libp2p is a JavaScript implementation of the libp2p networking stack. From 15.0.0 until 16.0.5, @libp2p/gossipsub uses the default StrictSig","severity":"high","exploited":false,"published_at":"2026-09-17T16:18:16.927+00:00","url":"https://junglewise.ai/threats/cve-2026-86038-libp2p-gossipsub-message-authentication-bypass-in-rsa-peer-ids"},{"cve":"CVE-2026-49866","cvss":7.5,"epss":0.0063,"slug":"cve-2026-49866-libp2p-gossipsub-denial-of-service-via-oversized-control-messages","title":"libp2p gossipsub denial of service via oversized control messages","severity":"high","exploited":false,"published_at":"2026-07-08T21:16:49.137+00:00","url":"https://junglewise.ai/threats/cve-2026-49866-libp2p-gossipsub-denial-of-service-via-oversized-control-messages"},{"cve":"CVE-2026-46679","cvss":7.5,"epss":0.0046,"slug":"cve-2026-46679-libp2p-js-libp2p-memory-exhaustion-in-libp2p-gossipsub","title":"libp2p js-libp2p memory exhaustion in @libp2p/gossipsub","severity":"high","exploited":false,"published_at":"2026-06-10T22:17:00.3+00:00","url":"https://junglewise.ai/threats/cve-2026-46679-libp2p-js-libp2p-memory-exhaustion-in-libp2p-gossipsub"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[],"technology":{"hub":true,"name":"Libp2p Gossipsub","slug":"gossipsub","vendor":{"name":"Libp2p","slug":"libp2p","url":"https://junglewise.ai/threats/vendors/libp2p"},"aliases":[],"category":"library","description":"A pub/sub protocol for libp2p networks that disseminates messages via a gossip mechanism to randomly selected peers.","url":"https://junglewise.ai/threats/technologies/gossipsub"},"most_severe":[{"cve":"CVE-2026-49866","cvss":7.5,"epss":0.0063,"slug":"cve-2026-49866-libp2p-gossipsub-denial-of-service-via-oversized-control-messages","title":"libp2p gossipsub denial of service via oversized control messages","severity":"high","exploited":false,"published_at":"2026-07-08T21:16:49.137+00:00","url":"https://junglewise.ai/threats/cve-2026-49866-libp2p-gossipsub-denial-of-service-via-oversized-control-messages"},{"cve":"CVE-2026-46679","cvss":7.5,"epss":0.0046,"slug":"cve-2026-46679-libp2p-js-libp2p-memory-exhaustion-in-libp2p-gossipsub","title":"libp2p js-libp2p memory exhaustion in @libp2p/gossipsub","severity":"high","exploited":false,"published_at":"2026-06-10T22:17:00.3+00:00","url":"https://junglewise.ai/threats/cve-2026-46679-libp2p-js-libp2p-memory-exhaustion-in-libp2p-gossipsub"},{"cve":"CVE-2026-86038","cvss":7.5,"epss":0.0019,"slug":"cve-2026-86038-libp2p-gossipsub-message-authentication-bypass-in-rsa-peer-ids","title":"libp2p is a JavaScript implementation of the libp2p networking stack. From 15.0.0 until 16.0.5, @libp2p/gossipsub uses the default StrictSig","severity":"high","exploited":false,"published_at":"2026-09-17T16:18:16.927+00:00","url":"https://junglewise.ai/threats/cve-2026-86038-libp2p-gossipsub-message-authentication-bypass-in-rsa-peer-ids"}],"generated_at":"2026-09-26T09:11:00.170868+00:00"}