CVE-2026-33111
Copilot Chat (Microsoft Edge) Information Disclosure Vulnerability
Description
Improper neutralization of special elements used in a command ('command injection') in Copilot Chat (Microsoft Edge) allows an unauthorized attacker to disclose information over a network.
INFO
Published Date :
May 7, 2026, 10:16 p.m.
Last Modified :
May 14, 2026, 2:31 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-33111
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | f38d906d-7342-40ea-92c1-6c4a2c6478c8 | ||||
| CVSS 3.1 | HIGH | [email protected] |
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-33111.
| URL | Resource |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33111 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-33111 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-33111
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-33111 vulnerability anywhere in the article.
-
CrowdStrike.com
May 2026 Patch Tuesday: 30 Critical Vulnerabilities Among 130 CVEs
Microsoft has addressed 130 vulnerabilities in its May 2026 security update release, fewer than April’s 164 vulnerabilities. This month's patches include fixes for 30 Critical vulnerabilities, along w ... Read more
-
CybersecurityNews
Critical Microsoft 365 Copilot Vulnerabilities Expose sensitive Information
Microsoft has disclosed and fully remediated three critical information disclosure vulnerabilities affecting Microsoft 365 Copilot and Copilot Chat in Microsoft Edge, all released on May 7, 2026, requ ... Read more
-
security.nl
Microsoft dicht kritieke Copilot-lekken die datadiefstal mogelijk maken
Microsoft heeft meerdere kritieke kwetsbaarheden in chatbot Copilot verholpen waardoor aanvallers informatie hadden kunnen stelen. "Information disclosure" beveiligingslekken worden over het algemeen ... Read more
The following table lists the changes that have been made to the
CVE-2026-33111 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
May. 14, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:microsoft:copilot_chat:-:*:*:*:*:microsoft_edge:*:* Added Reference Type Microsoft Corporation: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33111 Types: Vendor Advisory -
New CVE Received by [email protected]
May. 07, 2026
Action Type Old Value New Value Added Tag exclusively-hosted-service Added Description Improper neutralization of special elements used in a command ('command injection') in Copilot Chat (Microsoft Edge) allows an unauthorized attacker to disclose information over a network. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Added CWE CWE-77 Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33111