Vulnerabilities

CVSS

5.3 Medium

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

Risk score

42.4

Published

2026-03-19

Status

Published

Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.

Weaknesses

CWE-77

Coverage 1

vulnerability

Microsoft Copilot Personal Flaws Could Let One Click Exfiltrate Data From Connected Apps

Varonis Threat Labs discovered three vulnerabilities, collectively named ‘CoSnitch,’ in Microsoft Copilot Personal that could allow a single click on a crafted link to silently exfiltrate data from connected apps. The fl…

The Hacker News · Aug 18, 2026 High

CVE-2026-24301CVE-2026-24299prompt injectiondata exfiltrationmemory poisoning

All articles mentioning it

Advisories and references

• msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24299