Authenticated peer task hijacking via role spoofing
Published May 27, 2026 · Updated May 27, 2026
Authorization bypass in Microsoft UFO 3.0.1-4-ge2626659 allows remote authenticated users to dispatch tasks to peer devices. In ufo/server/ws/handler.py, task handling trusts each message's client_type and target_id instead of the role bound to its WebSocket connection. A shared server token and another connected device are required; exploitation routes attacker-controlled automation into that peer's context and can expose results or disrupt sessions.
Summary
What happened
Authorization bypass in Microsoft UFO 3.0.1-4-ge2626659 allows remote authenticated users to dispatch tasks to peer devices. In ufo/server/ws/handler.py, task handling trusts each message's client_type and target_id instead of the role bound to its WebSocket connection. A shared server token and another connected device are required; exploitation routes attacker-controlled automation into that peer's context and can expose results or disrupt sessions.
The record
- CVE
- CVE-2026-46414
- Published
- May 27, 2026
- Updated
- May 27, 2026
- Vendor
- Microsoft
- Product
- UFO
- Classifications
- CWE-862, CWE-290, CWE-639, T1210
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 27, 2026CVE publishedPublication date reported by the CVE source.
- May 27, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=3.0.1-4-ge2626659
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- UFO WebSocket role-spoofing proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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