CVE-2026-104428

5.3 MEDIUMpublic exploit available

Published 2026-10-02 · Updated 2026-10-06

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

NVD description

The getblock RPC method in zebra-rpc before 11.0.0, used by the Zcash Foundation's Zebra node, panics on verbosity 2 for a side-chain block because the block's -1 confirmations sentinel is converted to u32 with .expect(), aborting the process. Remote unauthenticated attackers, directly or through lightwalletd, can repeat this call to keep the node in a crash loop.

CVSS vector

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

Weaknesses

CWE-617

Public exploit & PoC references

https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-x6v8-c2xp-928m

All references

https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-x6v8-c2xp-928m
https://www.vulncheck.com/advisories/zebra-before-11.0.0-denial-of-service-via-getblock-verbosity-2

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

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