CVE-2026-108721
Open Computer Use through 1.0.0 Denylist Bypass via Case-Variant Bundle ID
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Passive
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Open Computer Use through 1.0.0 Denylist Bypass via Case-Variant Bundle ID
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.
- Record
CVE-2026-108721- CVSS 4.0
- 5.8 Medium
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N - CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N - Weakness
- CWE-178
- Updated
- 2026-11-02
EUVDEUVD-2026-96995
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.
- Record
EUVD-2026-96995- CVSS 4.0
- 5.8 Medium
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-6m6f-g6c9-vp3w
Open Computer Use through 1.0.0 on macOS contains an improper case sensitivity handling...
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.
- Record
GHSA-6m6f-g6c9-vp3w- CVSS 4.0
- 5.8 Medium
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N - Weakness
- CWE-178
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-108721- CVSS 4.0
- 5.8 Medium
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N - Weakness
- CWE-178
- Updated
- 2026-11-02
OSV
Open Computer Use through 1.0.0 Denylist Bypass via Case-Variant Bundle ID
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.
- Record
CVE-2026-108721- CVSS 4.0
- 5.8 Medium
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-178
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-108721 is a medium vulnerability (CVSS 5.8) in E2b-dev Open-computer-use, published October 11, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.13%, the 2nd percentile. No source names a fixed version.
References
hackmd.io/@haind/rJHI_S6IiMl
github.com/iFurySt/open-codex-computer-use/blob/8a3a7dec06402db2d760368cb24676ad3ba42c49/packages/OpenComputerUseKit/Sources/OpenComputerUseKit/AppDiscovery.swift
vulncheck.com/advisories/open-computer-use-through-1.0.0-denylist-bypass-via-case-variant-bundle-id
nvd.nist.gov/vuln/detail/CVE-2026-108721