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CVE-2025-59941

go-f3 is Vulnerable to Cached Justification Verification Bypass

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 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
Vendors
Filecoin
Products
Go-f3
CVE-2025-59942

go-f3 module vulnerable to integer overflow leading to panic

go-f3 is a Golang implementation of Fast Finality for Filecoin (F3). In versions 0.8.6 and below, go-f3 panics when it validates a "poison" messages causing Filecoin nodes consuming F3 messages to become vulnerable. A "poison" message can can cause integer overflow in the signer index validation, which can cause the whole node to crash. These malicious messages aren't self-propagating since the bug is in the validator. An attacker needs to directly send the message to all targets. This issue is fixed in version 0.8.7.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Filecoin
Products
Go-f3