Cyber Resilience

CVE-2026-50510

Microsoft Github Copilot ≤ 1.13.0-251

Published
14 July 2026
Modified
22 July 2026
Patch / advisory
View advisory
CVSS Score v3.1 7.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0023 14th percentile
Risk Priority 56 floored blend · peak EPSS

Summary

CVE-2026-50510 is a high-severity Improper Restriction of Names for Files and Other Resources (CWE-641) vulnerability in Microsoft Github Copilot. Its CVSS base score is 7.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Data from Local System (T1005); ranked at the 14th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

This vulnerability is AI-related — categorised as Enterprise AI Assistants.

The strongest mitigations our analysis identified map to SI-10 (Information Input Validation) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

Improper restriction of names for files and other resources in Github Copilot allows an unauthorized attacker to execute code locally.

CWE(s)
CWE-641

AI Security AnalysisAI

AI Category
Enterprise AI Assistants
Risk Domain
N/A
OWASP Top 10 for LLMs 2025
None mapped
Classification Reason
Matched keywords: copilot

Related Threats

MITRE ATT&CK Enterprise Techniques

T1005 Data from Local System Collection
Adversaries may search local system sources, such as file systems, configuration files, local databases, virtual machine files, or process memory, to find files of interest and sensitive data prior to Exfiltration.
attack.mitre.org →
T1083 File and Directory Discovery Discovery
Adversaries may enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-47173Same vendor: Microsoft
CVE-2025-21361Same vendor: Microsoft
CVE-2024-30063Same vendor: Microsoft
CVE-2025-47953Same vendor: Microsoft
CVE-2025-21402Same vendor: Microsoft
CVE-2026-25177Same vendor: Microsoft
CVE-2024-30073Same vendor: Microsoft
CVE-2024-30036Same vendor: Microsoft
CVE-2025-21189Same vendor: Microsoft
CVE-2025-21219Same vendor: Microsoft

Affected Assets

microsoft
github copilot
≤ 1.13.0-251

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match

SI-10 requires validation of inputs used to construct resource names, directly stopping malformed or dangerous names from being accepted.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require input validation and sanitization to restrict resource names derived from untrusted data.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing can detect improper filename handling but does not itself prevent the weakness.

A.8.25 Secure development life cycle partial match
prevents

Secure development life cycle mandates input validation and safe resource naming practices that directly prevent CWE-641.

A.8.26 Application security requirements partial match
prevents

Application security requirements include rules for handling untrusted input when constructing file or resource names.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure system architecture principles discourage unsafe resource naming but do not prescribe specific controls.

A.8.28 Secure coding partial match
prevents

Secure coding standards explicitly require validation and sanitization of filenames derived from external input.

References