{"id":"CVE-2025-59942","title":"go-f3 is a Golang implementation of Fast Finality for Filecoin (F3)","summary":"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 ca…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-190"],"vendor":"filecoin","product":"go-f3","affected":["go-f3 < 0.8.7"],"patched":["go-f3 0.8.7"],"published":"2025-09-29","updated":"2026-10-09","sourceUpdated":"2026-10-09T09:10:00.213","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-59942","references":[{"url":"https://github.com/filecoin-project/go-f3/security/advisories/GHSA-g99p-47x7-mq88","label":"security-advisories@github.com"}],"tags":["nvd"],"epss":0.00335,"epssPercentile":0.24796,"ingestedAt":"2026-10-09T09:31:00.994Z","slug":"CVE-2025-59942","body":"## Overview\n\ngo-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.\n\n## Affected\n\n- `go-f3 < 0.8.7`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `go-f3 0.8.7`","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}