Description
go-f3 is a Golang implementation of Fast Finality for Filecoin (F3). In versions 0.8.6 and below, go-f3 panics when it validates a "poison" messages causing Filecoin nodes consuming F3 messages to become vulnerable. A "poison" message can can cause integer overflow in the signer index validation, which can cause the whole node to crash. These malicious messages aren't self-propagating since the bug is in the validator. An attacker needs to directly send the message to all targets. This issue is fixed in version 0.8.7.
References (1)
Core 1
Core References
Vendor Advisory x_refsource_confirm
https://github.com/filecoin-project/go-f3/security/advisories/GHSA-g99p-47x7-mq88
Scores
CVSS v3
7.5
EPSS
0.0031
EPSS Percentile
22.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-190
Status
published
Products (2)
filecoin/go-f3
< 0.8.7
filecoin-project/go-f3
0 - 0.8.7Go
Published
Sep 29, 2025
Tracked Since
Feb 18, 2026