{"id":"CVE-2025-59942","aliases":["GHSA-g99p-47x7-mq88","GO-2025-3990"],"url":"https://o3.security/vulnerability/CVE-2025-59942","summary":"go-f3 module vulnerable to integer overflow leading to panic","details":"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.","published":"2025-09-29T22:50:36.462Z","modified":"2026-07-31T18:31:26.334561173Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/filecoin-project/go-f3","fixedVersion":"0.8.7"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59942.json"},{"type":"ADVISORY","url":"https://github.com/filecoin-project/go-f3/security/advisories/GHSA-g99p-47x7-mq88"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-59942"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-31T18:31:26.334561173Z"}}