HIGHCVE-2026-26164Published Modified CNA microsoft
CVE-2026-26164: M365 Copilot Information Disclosure Vulnerability
Improper neutralization of special elements in output used by a downstream component ('injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.
Metrics
- CVSS v3.1
- 7.5
- Severity
- HIGH
- Fixed in
- —
- Affected Products
- 1
Affected packages
- Microsoft / Microsoft 365 Copilot's Business Chat-
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C