Vulnerability · Published Oct 2, 2026 · Assigned by VulnCheck

CVE-2026-104434Zebra before 8.0.0 Denial of Service via z_listunifiedreceivers RPC

Medium 6.5

In plain English

A medium-severity security flaw in zebra from ZcashFoundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.3%top 76.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
ZcashFoundation	zebra	0 – before 8.0.0
ZcashFoundation	zebra	0 – before 4.5.0

Weakness: CWE-617 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

GitHub Security Advisory (GHSA-c8w6-x74f-vmg3) vendor-advisory
VulnCheck Advisory: Zebra before 8.0.0 Denial of Service via z_listunifiedreceivers RPC third-party-advisory