Microsoft GitHub Copilot Chat up to 1.123.1 insecure default initialization of resource

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k8.44-

Summaryinfo

A vulnerability classified as problematic was found in Microsoft GitHub Copilot Chat up to 1.123.1. Impacted is an unknown function. The manipulation results in insecure default initialization of resource. This vulnerability was named CVE-2026-50519. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Microsoft GitHub Copilot Chat up to 1.123.1. It has been classified as problematic. Affected is an unknown function. The manipulation with an unknown input leads to a insecure default initialization of resource vulnerability. CWE is classifying the issue as CWE-1188. The product initializes or sets a resource with a default that is intended to be changed by the administrator, but the default is not secure. This is going to have an impact on confidentiality. CVE summarizes:

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.

The advisory is available at msrc.microsoft.com. This vulnerability is traded as CVE-2026-50519 since 06/04/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 06/20/2026).

Upgrading to version 1.123.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-38089). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (microsoft): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Insecure default initialization of resource
CWE: CWE-1188
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: GitHub Copilot Chat 1.123.2

Timelineinfo

06/04/2026 CVE reserved
06/19/2026 +15 days Advisory disclosed
06/19/2026 +0 days VulDB entry created
06/20/2026 +1 days VulDB entry last update

Sourcesinfo

Vendor: microsoft.com

Advisory: msrc.microsoft.com
Status: Confirmed

CVE: CVE-2026-50519 (🔒)
GCVE (CVE): GCVE-0-2026-50519
GCVE (VulDB): GCVE-100-372498
EUVD: 🔒

Entryinfo

Created: 06/19/2026 23:55
Updated: 06/20/2026 03:33
Changes: 06/19/2026 23:55 (63), 06/20/2026 03:33 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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