CVE-2025-59941

MEDIUM
2025-09-29 [email protected]
5.9
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
Low

Lifecycle Timeline

3
Analysis Generated
Mar 28, 2026 - 19:14 vuln.today
Patch Released
Mar 28, 2026 - 19:14 nvd
Patch available
CVE Published
Sep 29, 2025 - 23:15 nvd
MEDIUM 5.9

Tags

Authentication Bypass Go F3 Suse

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.

Analysis

go-f3 is a Golang implementation of Fast Finality for Filecoin (F3). Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable.

Technical Context

This vulnerability is classified under CWE-305. 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. Affected products include: Filecoin Go-F3. Version information: version 0.8.9..

Affected Products

Filecoin Go-F3.

Remediation

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Priority Score

30
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +30
POC: 0

Vendor Status

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CVE-2025-59941 vulnerability details – vuln.today
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