PT-2026-104232 · Zcashfoundation · Zebra
CVE-2026-104421
·
Published
2026-10-02
·
Updated
2026-10-02
CVSS v3.1
5.3
Medium
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
Zebra before 6.2.1 contains an incomplete cleanup vulnerability that allows unauthenticated peers to block downloading of valid blocks by leaving rejected hashes in SentHashes. Attackers can send a contextually invalid block sharing an honest block's header hash, causing Request::KnownBlock to skip the honest block and keep nodes behind the tip.
Fix
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Weakness Enumeration
Related Identifiers
Affected Products
Zebra