CVE-2026-50519: Initialization of a resource with an insecure default in GitHub Copilot and Visual Studio Code allows an unaut

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MEDIUM 6.5WATCHLISTMITIGATE

CVE-2026-50519 is a medium-severity flaw (CVSS 6.5) affecting github copilot chat. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-1188
Published	2026-06-19
Last modified	2026-10-25

Publisher (CNA): Microsoft Corporation · Vendor: microsoft

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-19 21:17 UTCPublished CVE record published
2026-10-25 23:10 UTCUpdated Record last modified

microsoft github copilot chat MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy github-copilot-chat || rpm -q github-copilot-chat || github-copilot-chat --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-50519?

github copilot chat: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-50519 being exploited?

CVE-2026-50519 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-50519 affect?

CVE-2026-50519 affects github copilot chat. Severity is medium (CVSS 6.5). 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.

How urgent is CVE-2026-50519?

Priority 43/100. On your watchlist

Software pages

GitHub vulnerabilities · Visual Studio vulnerabilities

Related CVEs

CVE-2026-23653 MEDIUM 5.7 UPGRADE Improper neutralization of special elements used in a command ('command injection') in GitHub Copilot and Visu
CVE-2026-65675 HIGH 7.1 MITIGATE No cwe for this issue in Visual Studio Code CoPilot Chat Extension allows an unauthorized attacker to bypass a

References

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