Denylist bypass in Open Computer Use via case-variant bundle IDs
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Open Computer Use by iFurySt through 1.0.0 on macOS mishandles letter case in bundle identifiers (CWE-178). Local MCP callers, including prompt-injected model turns, can bypass the password-manager denylist by passing case-variant bundle identifiers. This lets them read accessibility trees and capture screenshots of unlocked password manager interfaces.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for open-computer-use.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-11 Threatist record created from CVE-2026-108721
- 2026-10-11 Alias added: GHSA-6m6f-g6c9-vp3w
- 2026-10-12 Priority changed: MEDIUM → LOW
- 2026-10-13 CISA SSVC decision points changed
References
Advisory 1
Other 3
- https://github.com/iFurySt/open-codex-computer-use/blob/8a3a7dec06402db2d760368cb24676ad3ba42c49/packages/OpenComputerUseKit/Sources/OpenComputerUseKit/AppDiscovery.swift#L144-L198
- https://github.com/iFurySt/open-codex-computer-use/blob/8a3a7dec06402db2d760368cb24676ad3ba42c49/packages/OpenComputerUseKit/Sources/OpenComputerUseKit/AppDiscovery.swift#L554-L572
- https://github.com/iFurySt/open-codex-computer-use
Sources
- CVE-2026-108721 · CVE Program
- CVE-2026-108721 · NVD
- FIRST EPSS
- GHSA-6m6f-g6c9-vp3w · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences