Medium severity6.5NVD Advisory· Published Jun 4, 2026· Updated Jun 8, 2026
CVE-2026-47644
CVE-2026-47644
Description
Improper neutralization of special elements in output used by a downstream component ('injection') in Copilot Chat (Microsoft Edge) allows an unauthorized attacker to disclose information over a network.
Affected products
2cpe:2.3:a:microsoft:copilot_chat:-:*:*:*:*:microsoft_edge:*:*+ 1 more
- cpe:2.3:a:microsoft:copilot_chat:-:*:*:*:*:microsoft_edge:*:*
- (no CPE)
Patches
Vulnerability mechanics
References
1- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47644nvdVendor Advisory
News mentions
3- Microsoft Patch Tuesday for June 2026 — Snort rules and prominent vulnerabilitiesCisco Talos Intelligence · Jun 9, 2026
- Microsoft: Seven Critical and High Vulnerabilities Disclosed on June 4thVypr Intelligence · Jun 4, 2026
- June 2026 Patch Tuesday: Microsoft Patches 206 Vulnerabilities Including Three Publicly Disclosed Zero-DaysCrowdStrike Blog