Medium severity4.4NVD Advisory· Published Aug 28, 2026· Updated Sep 11, 2026

CVE-2026-58616

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Copilot Chat (Microsoft Edge) allows an authorized attacker to disclose information over a network.

Affected products

Microsoft/Edgellm-create
Microsoft/365 Copilot Chatllm-fuzzy

Patches

Vulnerability mechanics

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58616nvdVendor Advisory

News mentions

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