Incorrect Provision of Specified Functionality Affecting zebra-script package, versions <7.0.0


Severity

Recommended
0.0
critical
0
10

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  • Snyk IDSNYK-RUST-ZEBRASCRIPT-17808036
  • published3 Jul 2026
  • disclosed2 Jul 2026
  • creditUnknown

Introduced: 2 Jul 2026

NewCVE-2026-52735  (opens in a new tab)
CWE-684  (opens in a new tab)

How to fix?

Upgrade zebra-script to version 7.0.0 or higher.

Overview

Affected versions of this package are vulnerable to Incorrect Provision of Specified Functionality due to improper control flow in the sig_op_count function when parsing redeem scripts containing disabled opcodes. An attacker can cause consensus divergence between network validators by broadcasting transactions with maliciously crafted redeem scripts, potentially leading to a chain split and network instability.

CVSS Base Scores

version 4.0
version 3.1