What is GHSA-cpwj-fm29-9h32?

GHSA-cpwj-fm29-9h32 is a security advisory published by GitHub Security Advisories with High severity. ZcashFoundation Zebra zebrad before 7.0.0 contains a reachable assertion race condition that...

Which CVE IDs does GHSA-cpwj-fm29-9h32 cover?

GHSA-cpwj-fm29-9h32 covers the following CVE IDs: CVE-2026-123557. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-cpwj-fm29-9h32?

GHSA-cpwj-fm29-9h32 has a CVSS v3 base score of 5.9, published by GitHub Security Advisories.

GHSA-cpwj-fm29-9h32HighCVSS 5.9

ZcashFoundation Zebra zebrad before 7.0.0 contains a reachable assertion race condition that...

Vendor

GitHub Security Advisories

Published

November 8, 2026

Last Modified

November 8, 2026

🔗 CVE IDs covered (1)

CVE-2026-123557 →

📋 Description

ZcashFoundation Zebra zebrad before 7.0.0 contains a reachable assertion race condition that allows unauthenticated remote peers to abort the node by triggering disconnection during a blocked outbound send. Malicious peers can return empty FindBlocks or FindHeaders replies and stop reading their socket, dropping an unresolved MustUseClientResponseSender and terminating syncing nodes.

🔗 References (4)

https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-6v36-c42v-v98p
https://nvd.nist.gov/vuln/detail/CVE-2026-123557
https://www.vulncheck.com/advisories/zebra-zebrad-before-7.0.0-reachable-assertion-dos-via-peer-disconnection
https://github.com/advisories/GHSA-cpwj-fm29-9h32