CVE-2026-34377

Katalog CVE

CVSS 8.1 · High EPSS 0,38%

Kerentanan Improper Verification of Cryptographic Signature pada zfnd zebra, zfnd zebra-consensus. Skor CVSS 3.1 8.1 (High) menurut NVD.

Deskripsi (NVD)

ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.0 and zebra-consensus version 5.0.1, a logic error in Zebra's transaction verification cache could allow a malicious miner to induce a consensus split. By matching a valid transaction's txid while providing invalid authorization data, a miner could cause vulnerable Zebra nodes to accept an invalid block, leading to a consensus split from the rest of the Zcash network. This would not allow invalid transactions to be accepted but could result in a consensus split between vulnerable Zebra nodes and invulnerable Zebra and Zcashd nodes. This issue has been patched in zebrad version 4.3.0 and zebra-consensus version 5.0.1.

Rincian

Terbit di NVD

31 Maret 2026

Terakhir diubah

24 Juli 2026

Status NVD

Analyzed

CVSS 3.1

8.1 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-347: Improper Verification of Cryptographic Signature

EPSS (30 hari)

0,38% peluang dieksploitasi; lebih tinggi dari 30,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-3vmh-33xr-9cqh exploit · advisory vendor
• https://zfnd.org/zebra-4-3-0-critical-security-fixes-zip-235-support-and-performance-improvements advisory vendor
• https://github.com/ZcashFoundation/zebra/releases/tag/v4.3.0 release notes