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
Affected Vendors & Products
References
History
Fri, 08 May 2026 20:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Microsoft 365 Copilot Chat
|
|
| CPEs | cpe:2.3:a:microsoft:365_copilot_chat:-:*:*:*:*:*:*:* | |
| Vendors & Products |
Microsoft 365 Copilot Chat
|
Fri, 08 May 2026 14:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Thu, 07 May 2026 21:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | M365 Copilot Information Disclosure Vulnerability | |
| First Time appeared |
Microsoft
Microsoft 365 Copilot Business Chat |
|
| Weaknesses | CWE-74 | |
| CPEs | cpe:2.3:a:microsoft:365_copilot_business_chat:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Microsoft
Microsoft 365 Copilot Business Chat |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: microsoft
Published:
Updated: 2026-05-08T13:52:02.167Z
Reserved: 2026-02-11T18:33:57.776Z
Link: CVE-2026-26164
Updated: 2026-05-08T13:51:57.730Z
Status : Analyzed
Published: 2026-05-07T22:16:33.773
Modified: 2026-05-08T19:53:26.070
Link: CVE-2026-26164
No data.
OpenCVE Enrichment
Updated: 2026-05-08T00:00:11Z