MEDIUM 6.9 NVD
CVE-2026-104428
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
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.
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-ve
This medium severity vulnerability with a CVSS score of 6.9 was published on 2026-10-02 via NVD.
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