CVE-2026-104420

Published: Ott 02, 2026 Last Modified: Ott 02, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,9
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
MEDIUM 5,3
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: low

Description

AI Translation Available

Zebra before 6.3.0 contains a protection mechanism failure that allows unauthenticated peers to evade misbehavior scoring by supplying invalid gossiped blocks. The inbound cleanup step wrongly downcasts RouterError to VerifyBlockError and discards the score, so attackers can repeatedly force block download and Equihash verification without being banned.

704

Incorrect Type Conversion or Cast

Incomplete
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Other
Potential Impacts:
Other
Applicable Platforms
Languages: C, C++, Not Language-Specific, Memory-Unsafe
View CWE Details
https://github.com/ZcashFoundation/zebra/security/advisorie…
https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-8hh2-hrf2-cqf4
https://www.vulncheck.com/advisories/zebra-before-6.3.0-pee…
https://www.vulncheck.com/advisories/zebra-before-6.3.0-peer-misbehavior-ban-by…