{"cve":"CVE-2025-59941","nvd":{"published":"2025-09-29T23:15:32.133","modified":"2026-10-09T09:10:00.213","status":"Analyzed","description":"go-f3 is a Golang implementation of Fast Finality for Filecoin (F3). In versions 0.8.8 and below, go-f3's justification verification caching mechanism has a vulnerability where verification results are cached without properly considering the context of the message. An attacker can bypass justification verification by submitting a valid message with a correct justification and then reusing the same cached justification in contexts where it would normally be invalid. This occurs because the cached verification does not properly validate the relationship between the justification and the specific message context it's being used with. This issue is fixed in version 0.8.9.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L","score":6.5},"cwes":["CWE-305"],"references":["https://github.com/filecoin-project/go-f3/commit/76fff18cf07b21baccf537024bdb2fb41f75f6e2#diff-e1f646cea41790e1642e4e649c9e3c526344736d67222201703e1c29c23e9625","https://github.com/filecoin-project/go-f3/security/advisories/GHSA-7pq9-rf9p-wcrf"],"products":["filecoin:go-f3"],"source":"nvd","synced_at":"2026-10-19T22:11:26.888974865+00:00"},"epss":{"cve":"CVE-2025-59941","score":0.00245,"percentile":0.15512,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-7pq9-rf9p-wcrf","url":"https://osv.dev/vulnerability/GHSA-7pq9-rf9p-wcrf","summary":"go-f3 Vulnerable to Cached Justification Verification Bypass","modified":"2025-10-23T20:32:35Z","packages":[{"ecosystem":"Go","name":"github.com/filecoin-project/go-f3","purl":"pkg:golang/github.com/filecoin-project/go-f3","ranges":["<0.8.9"],"fixed":["0.8.9"]}]},{"id":"GO-2025-3989","url":"https://osv.dev/vulnerability/GO-2025-3989","summary":"go-f3 Vulnerable to Cached Justification Verification Bypass in github.com/filecoin-project/go-f3","modified":"2026-03-03T04:56:57.687896Z","packages":[{"ecosystem":"Go","name":"github.com/filecoin-project/go-f3","purl":"pkg:golang/github.com/filecoin-project/go-f3","ranges":["<0.8.9"],"fixed":["0.8.9"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}