Out-of-bounds Read Affecting capstone package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.13% (4th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ECHOLATEST-CAPSTONE-18860297
  • published16 Aug 2026
  • disclosed14 Aug 2026

Introduced: 14 Aug 2026

NewCVE-2026-49282  (opens in a new tab)
CWE-125  (opens in a new tab)
CWE-129  (opens in a new tab)
CWE-191  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest capstone.

NVD Description

Note: Versions mentioned in the description apply only to the upstream capstone package and not the capstone package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's public cs_insn_name() API forwards caller-supplied instruction IDs directly to the selected architecture backend. Most backends validate the ID before indexing instruction-name tables, but the M68K and RISCV backends have missing or incomplete bounds checks. On a Capstone handle opened for M68K or RISCV, a caller-controlled invalid instruction ID can trigger an out-of-bounds read and crash the process. The demonstrated impact is availability loss in applications or bindings that expose instruction-name lookup to untrusted IDs. No code execution or data disclosure was demonstrated. Version 6.0.0-Alpha9 patches the issue.

CVSS Base Scores

version 3.1