Connect your agent
AdvisoriesCriticalCheck your lockfilePluginHow it worksPricing Connect your agent

Advisory record · GHSA-c8w6-x74f-vmg3

zebrad vulnerable to full node denial of service via crafted Sapling receiver in z_listunifiedreceivers

CVSS 7.1 HighEPSS 0.0031 · 23rd percentile

Published by the GitHub Advisory Database at 2 Jul 2026, 19:37 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
zebra-rpccrates.io<8.0.08.0.0
zebradcrates.io<4.5.04.5.0
Identifiers
GHSA-c8w6-x74f-vmg3 · CVE-2026-104434
Weakness (CWE)
CWE-20 · CWE-248 · CWE-617 · CWE-754
Tags
Published
2 Jul 2026
Updated
3 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Affected: zebrad versions up to and including 4.4.1, and zebra-rpc before 8.0.0, where a crafted Sapling receiver in a Unified Address passed to z_listunifiedreceivers causes a panic. An attacker needs to authenticate to the RPC endpoint, which with default cookie auth means local access to the cookie file, or network access to the RPC port if cookie auth is disabled. A single request then aborts the whole node process. Upgrade zebrad to 4.5.0 and zebra-rpc to 8.0.0; until then, disable the RPC server or keep cookie auth enabled and restrict access to the cookie file.

Written 3 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.1 High 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CNA (VulnCheck)
  • CISA KEV Not listed.
  • EPSS 0.0031, the 23rd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:24 UTC First seen by agentprime
  2. 31 Oct 2026, 14:24 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.