CVE-2026-108721
Open Computer Use through 1.0.0 Denylist Bypass via Case-Variant Bundle ID
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-178 |
| Vendor | ifuryst |
| Product | open-computer-use |
| Published | Oct 11, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None
Affected Versions
iFurySt / open-computer-use
0 ≤ 1.0.0
References
hackmd.io: https://hackmd.io/@haind/rJHI_S6IiMl github.com: https://github.com/iFurySt/open-codex-computer-use/blob/8a3a7dec06402db2d760368cb24676ad3ba42c49/packages/OpenComputerUseKit/Sources/OpenComputerUseKit/AppDiscovery.swift#L144-L198 github.com: https://github.com/iFurySt/open-codex-computer-use/blob/8a3a7dec06402db2d760368cb24676ad3ba42c49/packages/OpenComputerUseKit/Sources/OpenComputerUseKit/AppDiscovery.swift#L554-L572 github.com: https://github.com/iFurySt/open-codex-computer-use vulncheck.com: https://www.vulncheck.com/advisories/open-computer-use-through-1.0.0-denylist-bypass-via-case-variant-bundle-id
Credits
HaiND from the Post and Telecommunication Institute of Technology