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CVE-2026-108721— Open Computer Use through 1.0.0 Denylist Bypass via Case-Variant Bundle ID

Quick assessment

Affected
iFurySt open-computer-use
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.

macOS 平台上的 Open Computer Use 1.0.0 版本存在一个不当处理大小写敏感性的漏洞，本地 MCP 调用者可以利用大小写变体 bundle identifiers 绕过密码管理器的黑名单。攻击者（包括通过提示注入方式操控的模型）可以传递如 “com.1Password.1Password” 这样的标识符，以调用 和 工具，从而读取辅助功能树（accessibility trees）、截取屏幕截图，并操控已解锁的密码管理器界面。

CVSS 5.3 · Medium EPSS 0.13% · P2

Affected Version Matrix 1

VendorProduct Version RangeStatus
iFurySt open-computer-use ≤ 1.0.0 affected
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I. Basic Information for CVE-2026-108721

Vulnerability Information
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Vulnerability Title
Open Computer Use through 1.0.0 Denylist Bypass via Case-Variant Bundle ID
Source: CVE Program / CVE List V5
Vulnerability Description
Open Computer Use through 1.0.0 on macOS contains an improper case sensitivity handling vulnerability that allows local MCP callers to bypass the password-manager denylist using case-variant bundle identifiers. Attackers, including prompt-injected model turns, can pass identifiers like com.1Password.1Password to get_app_state and action tools to read accessibility trees, capture screenshots, and drive unlocked password manager interfaces.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
大小写敏感处理不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
iFurySt open-computer-use 0 ~ 1.0.0 -

II. Public POCs for CVE-2026-108721

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III. Intelligence Information for CVE-2026-108721

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Vendor Advisories for CVE-2026-108721 (1)

Proof of Concept for CVE-2026-108721 (2)

Security Blog Posts for CVE-2026-108721 (1)

IV. Related Vulnerabilities

Same product: open-computer-use
Same weakness: CWE-178

V. Comments for CVE-2026-108721

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