Vulnerability · Published Jun 19, 2026 · Assigned by microsoft
CVE-2026-50519Microsoft Visual Studio Code CoPilot Chat Security Feature Bypass Vulnerability
Medium 6.5
In plain English
A medium-severity security flaw in GitHub Copilot Chat from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.9%top 39.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Initialization of a resource with an insecure default in GitHub Copilot and Visual Studio Code allows an unauthorized attacker to disclose information over a network.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | GitHub Copilot Chat | 1.0.0 – before 1.123.2 |
Weakness: CWE-1188 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
References
- Microsoft Visual Studio Code CoPilot Chat Security Feature Bypass Vulnerability vendor-advisory, patch