CVE-2026-104434

Medium

Description

ZcashFoundation Zebra zebra-rpc before 8.0.0 and zebrad before 4.5.0 contain a reachable assertion in the z_listunifiedreceivers RPC handler, which calls expect() on Sapling receiver parsing that fails for Unified Addresses carrying invalid Jubjub points. Authenticated RPC clients can submit such an address to abort the zebrad process, repeatably keeping the node offline.

SeverityMedium

CVSS6.5

Exploit probability—

ProductZcashfoundation Zebra

PublishedOct 2, 2026

First seenOct 2, 2026

Weakness typeCWE-617CWE-617

How to fix

Update

ZcashFoundation zebra8.0.0, 4.5.0 or later

Vendor advisories

github.com/ZcashFoundation/zebra/security/advisories/GHSA-c8w6-x74f-vmg3

Affected products

Product	Affected versions	Fixed in
ZcashFoundation zebra	v < 8.0.0, v < 4.5.0	8.0.0, 4.5.0

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