What’s Vulnerable › Vulnerabilities
CVE-2026-41584: ZEBRA: rk Identity Point Panic in Transaction Verification
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-05-08 · updated 2026-06-17
- Weakness: CWE-617
Description
ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.1 and prior to zebra-chain version 6.0.2, Orchard transactions contain a rk field which is a randomized validating key and also an elliptic curve point. The Zcash specification allows the field to be the identity (a "zero" value), however, the orchard crate which is used to verify Orchard proofs would panic when fed a rk with the identity value. Thus an attacker could send a crafted transaction that would make a Zebra node crash. This issue has been patched in zebrad version 4.3.1 and zebra-chain version 6.0.2.
Affected products
- ZcashFoundation zebra-chain: before 6.0.2 — fixed in 6.0.2
- ZcashFoundation zebra: before 4.3.1 — fixed in 4.3.1
How to fix
Upgrade to a fixed version: ZcashFoundation zebra-chain 6.0.2; ZcashFoundation zebra 4.3.1. Check the vendor advisory for mitigations.
References
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