go-f3 is Vulnerable to Cached Justification Verification Bypass

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-59941
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-09-29 23:15:32 UTC
Updated2026-10-09 09:10:00 UTC
Descriptiongo-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.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L

EPSS: 0.002390000 probability, percentile 0.138090000 (date 2026-10-11)

Problem Types: CWE-305 | CWE-305 CWE-305: Authentication Bypass by Primary Weakness

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6.5MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L
3.1[email protected]Secondary5.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L
3.1CNADECLARED5.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
Low

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Filecoin Go-f3 All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Filecoin-project Go-f3 affected < 0.8.9 Not specified

References

ReferenceSourceLinkTags
github.com/filecoin-project/go-f3/security/advisories/GHSA-7pq9-rf9p-wcrf [email protected] github.com Vendor Advisory
github.com/filecoin-project/go-f3/commit/76fff18cf07b21baccf537024bdb2fb... [email protected] github.com Patch
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