CVE-2026-34202

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1

7.5 (HIGH) מקור הציון: NVD CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS 4.0

9.2 (CRITICAL) מקור הציון: CNA CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — סבירות ניצול

1% (אחוזון 100) נכון ל-26/7/2026

CWE

CWE-94, CWE-1336, CWE-502

מוצרים מושפעים

zfnd: zebra; zfnd: zebra-chain

קישורים

• https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-qp6f-w4r3-h8wg Vendor Advisory
• https://zfnd.org/zebra-4-3-0-critical-security-fixes-zip-235-support-and-perfo‮… Vendor Advisory
• https://github.com/ZcashFoundation/zebra/releases/tag/v4.3.0 Release Notes