CVE-2020-12821

critical

Description

Gossipsub 1.0 does not properly resist invalid message spam, such as an eclipse attack or a sybil attack.

References

Advisories
More

https://github.com/libp2p/specs/tree/master/pubsub/gossipsub

https://github.com/libp2p/specs/blob/master/pubsub/gossipsub/gossipsub-v1.1.md

https://github.com/ipfs/blog/pull/450

https://bitcoin.stackexchange.com/questions/61151/eclipse-attack-vs-sybil-attack

https://gateway.ipfs.io/ipfs/QmPWuNBs8h6a8KamRvGqhTq5UDYJRQsEEy37zDKjujQQQm/Gossipsub%20Evaluation%20Report.pdf

Details

Source: Mitre, NVD

Published: 2020-07-07

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00887