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.
Advisories
Source ID Title
EUVD EUVD EUVD-2025-31621 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.
Github GHSA Github GHSA GHSA-7pq9-rf9p-wcrf go-f3 Vulnerable to Cached Justification Verification Bypass
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sat, 18 Oct 2025 01:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:filecoin:go-f3:*:*:*:*:*:*:*:*

Tue, 30 Sep 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 30 Sep 2025 09:00:00 +0000

Type Values Removed Values Added
First Time appeared Filecoin
Filecoin go-f3
Vendors & Products Filecoin
Filecoin go-f3

Mon, 29 Sep 2025 22:45:00 +0000

Type Values Removed Values Added
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.
Title go-f3 is Vulnerable to Cached Justification Verification Bypass
Weaknesses CWE-305
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-09-30T14:13:56.958Z

Reserved: 2025-09-23T14:33:49.505Z

Link: CVE-2025-59941

cve-icon Vulnrichment

Updated: 2025-09-30T14:13:54.407Z

cve-icon NVD

Status : Analyzed

Published: 2025-09-29T23:15:32.133

Modified: 2025-10-18T01:21:51.237

Link: CVE-2025-59941

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-09-30T08:47:42Z