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CVE-2026-49483— Code for IBMi: Uses IBM i components with blind check allowing arbitrary code execution

Quick assessment

Affected
codefori vscode-ibmi
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

IBM i 是 IBMi 平台上用于维护和编译 ILE（Integrated Language Environment，集成语言环境）语言的 Visual Studio Code 扩展。在 3.0.1 版本之前，实现 IBMiComponent 的 IBMi 组件在检查过程中仅验证了指定过程是否存在，而未可靠地校验组件本身的完整性。如果组件被安装了过于宽泛的公共权限，则允许其他本地账户篡改诸如 GETMBRINFO 之类的程序。由于 LONG_COMMENT 标记本身不足以建立完整性保障，后续连接可能会以当前登录账

CVSS 8.9 · High EPSS 0.14% · P3

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
codefori vscode-ibmi < 3.0.1 affected
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I. Basic Information for CVE-2026-49483

Vulnerability Information
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Vulnerability Title
Code for IBMi: Uses IBM i components with blind check allowing arbitrary code execution
Source: CVE Program / CVE List V5
Vulnerability Description
Code for IBMi is a Visual Studio Code extension for maintaining and compiling ILE languages on the IBMi platform. Prior to 3.0.1, IBMi components implementing IBMiComponent were accepted after checking that a procedure existed without reliably verifying component integrity. Components installed with broad public permissions allow another local account to alter a program such as GETMBRINFO. A later connection can execute the altered program under the connecting account because the LONG_COMMENT marker alone does not establish integrity. This issue is fixed in version 3.0.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键资源的不正确权限授予
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
codefori vscode-ibmi < 3.0.1 -

II. Public POCs for CVE-2026-49483

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III. Intelligence Information for CVE-2026-49483

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Vendor Advisories for CVE-2026-49483 (1)

IV. Related Vulnerabilities

Same product: vscode-ibmi
Same vendor: codefori
Same weakness: CWE-732

V. Comments for CVE-2026-49483

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