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CVE-2026-45482

Microsoft Visual Studio Code CoPilot Chat Security Feature Bypass Vulnerability

HIGH
8.4
CVSS Score
Published: June 9, 2026 at 05:05 PM UTC
Updated: July 23, 2026 at 07:32 PM UTC
2 products affected across 1 vendorVisual Studio CodeGitHub Copilot Chat

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Severity
HIGH8.4
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Improper limitation of a pathname to a restricted directory ('path traversal') in GitHub Copilot and Visual Studio Code allows an unauthorized attacker to bypass a security feature locally.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Visual Studio Code· Microsoft
95%
v < 1.123.2
Affected range stops below 1.123.2, so it looks safe — our inference, not a vendor statement
GitHub Copilot Chat· Microsoft
60%
0.27.0 ≤ v < 1.123.20.27.0
Affected range stops below 1.123.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor AdvisoryPatch
Source: [email protected]
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45482

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.4HIGHmicrosoft
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-22

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