CVE-2026-46544
Microsoft UFO reuses client-supplied WebSocket session IDs and replays stale task results to new authenticated requesters
Description
Microsoft UFO open-source framework for intelligent automation across devices and platforms. In 3.0.1-4-ge2626659, Microsoft UFO accepts client-supplied session_id values in WebSocket task messages and reuses an existing in-memory session object if that session_id already exists. If a prior session has completed and remains in memory with populated results, a different authenticated client can send a new TASK message using the same session_id. The server re-enters the existing session object and sends the stale stored result to the new requester through the normal send_task_end() callback path. This is an authenticated cross-client stale result replay issue. The issue requires that the attacker knows or can predict a live or recently completed session_id.
INFO
Published Date :
May 27, 2026, 9:53 p.m.
Last Modified :
May 27, 2026, 9:53 p.m.
Remotely Exploit :
No
Source :
GitHub_M
Affected Products
The following products are affected by CVE-2026-46544
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update Microsoft UFO to the latest version.
- Apply vendor patches when available.
- Validate session IDs carefully.
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CVE-2026-46544 vulnerability anywhere in the article.