CVE-2026-47644 Copilot Chat (Microsoft Edge) Information Disclosure Vulnerability
An injection flaw in Microsoft Edge Copilot Chat allows attackers to disclose sensitive information over the network.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-47644?
CVE-2026-47644 is a medium-severity vulnerability in Copilot Chat (Microsoft Edge), published on 4 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Improper neutralization of special elements in output used by a downstream component ('injection') in Copilot Chat (Microsoft Edge) allows an unauthorized attacker to disclose information over a network.
Weakness: CWE-74
Which versions are affected by CVE-2026-47644?
It affects 1 product.
Products include Microsoft Copilot Chat.
How do I fix CVE-2026-47644?
No fix has been published for CVE-2026-47644 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-47644 being exploited?
There is no known exploitation of CVE-2026-47644 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Copilot Chat (Microsoft Edge)
Sources
Also known as GHSA-6w62-wfvj-6pfp.