CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2020-12821
Critical (9.8) in protocol gossipsub. EPSS 1.9% chance of exploitation in the next 30 days.
Gossipsub 1.0 does not properly resist invalid message spam, such as an eclipse attack or a sybil attack.
Severity
- EPSS
- 1.9% chance of exploitation in the next 30 days; higher than 80% of CVEs (scores of 2026-10-31)
- Published
- Modified
- Record from
- the NVD, synced
Affected
- protocol:gossipsub
References
- https://bitcoin.stackexchange.com/questions/61151/eclipse-attack-vs-sybil-attack
- https://gateway.ipfs.io/ipfs/QmPWuNBs8h6a8KamRvGqhTq5UDYJRQsEEy37zDKjujQQQm/Gossipsub%20Evaluation%20Report.pdf
- https://github.com/ipfs/blog/pull/450
- https://github.com/libp2p/specs/blob/master/pubsub/gossipsub/gossipsub-v1.1.md
- https://github.com/libp2p/specs/tree/master/pubsub/gossipsub