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CVE-2026-26164 (GCVE-0-2026-26164)

Vulnerability from cvelistv5 – Published: 2026-05-07 20:58 – Updated: 2026-08-10 15:13 Exclusively Hosted Service
VLAI
Title
M365 Copilot Information Disclosure Vulnerability
Summary
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.
Severity
7.5 (High)
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
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-08 13:51 UTC
CWE
  • CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Assigner
References
Impacted products
Vendor Product Version CPE status
Microsoft Microsoft 365 Copilot's Business Chat Affected: -
    cpe:2.3:a:microsoft:365_copilot_business_chat:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-05-07 14:00
Show details on NVD website
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