CVE-2026-26137

8.9 HIGH

Published: March 19, 2026 Modified: March 19, 2026

Description

Server-side request forgery (ssrf) in Microsoft 365 Copilot's Business Chat allows an authorized attacker to elevate privileges over a network.

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0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L

Patch Vendor Advisory Exploit Third Party Advisory

Source: secure@microsoft.com

1 reference(s) from NVD

CVSS v3 Score

8.9 / 10.0

Exploitation Status

Not in CISA KEV

CWE-918