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    CVE-2026-34202

    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.

    Published:Mar 31, 2026
    Last Modified:Apr 8, 2026
    EPS:Mar 31, 2026
    EPSS Score:0.00317
    CVSS Score:7.5

    Affected Products

    Vendor
    Zcashfoundation
    Product
    Zebra
    Vendor
    Zcashfoundation
    Product
    Zebra-chain
    Vendor
    Zfnd
    Product
    Zebra
    Vendor
    Zfnd
    Product
    Zebra-chain

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-52731 (CVSS 6.5) — ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, an attacker authenticated to an enabled Zebra …
    CVE-2026-52733 (CVSS 6.5) — ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, a natural or attacker-influenced chain fork ca…
    CVE-2026-52738 (CVSS 6.9) — ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, a consensus-valid block containing a long chai…
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    CVE-2026-52739 (CVSS 5.9) — ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, a malicious block producer can terminate zebra…
    CVE-2026-52734 (CVSS 5.3) — ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, an unauthenticated P2P peer can cause the memp…
    CVE-2026-52737 (CVSS 5.3) — ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, a malicious unauthenticated P2P peer can answe…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High