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CVE-2026-34202

Published: Mar 31, 2026

Modified: Mar 31, 2026

PUBLISHED

Description

ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.0 and zebra-chain version 6.0.1, a vulnerability in Zebra's transaction processing logic allows a remote, unauthenticated attacker to cause a Zebra node to panic (crash). This is triggered by sending a specially crafted V5 transaction that passes initial deserialization but fails during transaction ID calculation. This issue has been patched in zebrad version 4.3.0 and zebra-chain version 6.0.1.

Vendor	Product	Versions
ZcashFoundation	zebra	affected `< 4.3.0`
ZcashFoundation	zebra-chain	affected `< 6.0.1`

Weaknesses (CWE)

References

https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-qp6f-w4r3-h8wg

x_refsource_CONFIRM

https://github.com/ZcashFoundation/zebra/releases/tag/v4.3.0

x_refsource_MISC

https://zfnd.org/zebra-4-3-0-critical-security-fixes-zip-235-support-and-performance-improvements

x_refsource_MISC

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