CVE-2026-123557

5.9 MEDIUMpublic exploit available

Published 2026-11-08 · Updated 2026-11-10

AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.

NVD 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.

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CWE-617

Public exploit & PoC references

https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-6v36-c42v-v98p

All references

https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-6v36-c42v-v98p
https://www.vulncheck.com/advisories/zebra-zebrad-before-7.0.0-reachable-assertion-dos-via-peer-disconnection

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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