CVE-2026-44497

Published: Mag 08, 2026 Last Modified: Mag 08, 2026
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,3
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
CRITICAL 9,1
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: high
Availability: high

Description

AI Translation Available

ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.4.0 and prior to zebra-script version 6.0.0, the fix for CVE-2026-41583 introduced a separate issue due to insufficient error handling of the case where the sighash type is invalid, during sighash computation. Instead of returning an error, the normal flow would resume, and the input sighash buffer would be left untouched. In scenarios where a previous signature validation could leave a valid sighash in the buffer, an invalid hash-type could be incorrectly accepted, which would create a consensus split between Zebra and zcashd nodes. This issue has been patched in zebrad version 4.4.0 and zebra-script version 6.0.0.

347

Improper Verification of Cryptographic Signature

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control Integrity Confidentiality
Potential Impacts:
Gain Privileges Or Assume Identity Modify Application Data Execute Unauthorized Code Or Commands
Applicable Platforms
All platforms may be affected
View CWE Details
Application

Zebrad by Zfnd

Product Information
Vendor Zfnd
Product Zebrad
Version Range Affected
To 4.4.0 (exclusive)
cpe:2.3:a:zfnd:zebrad:*:*:*:*:*:rust:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Zebra-Script by Zfnd

Product Information
Vendor Zfnd
Product Zebra-Script
Version Range Affected
To 6.0.0 (exclusive)
cpe:2.3:a:zfnd:zebra-script:*:*:*:*:*:rust:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/ZcashFoundation/zebra/security/advisorie…
https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-gq4h-3grw-2rhv