Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Filecoin | Go-F3 | < 0.8.9 |
Related Weaknesses (CWE)
References
- https://github.com/filecoin-project/go-f3/commit/76fff18cf07b21baccf537024bdb2fbPatch
- https://github.com/filecoin-project/go-f3/security/advisories/GHSA-7pq9-rf9p-wcrVendor Advisory
FAQ
What is CVE-2025-59941?
CVE-2025-59941 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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 ar...
How severe is CVE-2025-59941?
CVE-2025-59941 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-59941?
Check the references section above for vendor advisories and patch information. Affected products include: Filecoin Go-F3.