CVE-2026-45033: GitHub Copilot CLI brings AI-powered coding assistance directly to your command line

Q: How do I fix CVE-2026-45033?

copilot-cli: upgrade to 1.0.43. Exact commands for each OS are on this page.

Q: Is CVE-2026-45033 being exploited?

CVE-2026-45033 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-45033 affect?

CVE-2026-45033 affects copilot-cli. Severity is high (CVSS 7.8). GitHub Copilot CLI brings AI-powered coding assistance directly to your command line. Prior to 1.0.43, a security vulnerability has been identified in GitHub Copilot CLI where a malicious bare git repository nested inside a project directo

Q: How urgent is CVE-2026-45033?

Priority 39/100. High severity; Public exploit reference

Routine

HIGH 7.8UPGRADE

CVE-2026-45033 is a high-severity flaw (CVSS 7.8) affecting copilot-cli. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

GitHub Copilot CLI brings AI-powered coding assistance directly to your command line. Prior to 1.0.43, a security vulnerability has been identified in GitHub Copilot CLI where a malicious bare git repository nested inside a project directory can achieve arbitrary code execution when the agent performs git operations. By exploiting git's automatic bare repository discovery during directory traversal, an attacker can set core.fsmonitor or other ex

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 72%)
CISA exploited list	No
Weakness	CWE-696
Published	2026-05-13
Last modified	2026-10-26

Publisher (CNA): GitHub, Inc. · Vendor: github

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-13 16:17 UTCPublished CVE record published
2026-10-26 17:10 UTCUpdated Record last modified

github copilot-cli UPGRADE

Affected: < 1.0.43

Fixed in: 1.0.43

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy copilot-cli || rpm -q copilot-cli || copilot-cli --version

2. UPGRADE to 1.0.43 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade copilot-cli

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade copilot-cli

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2026-45033?

copilot-cli: upgrade to 1.0.43. Exact commands for each OS are on this page.

Is CVE-2026-45033 being exploited?

CVE-2026-45033 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-2026-45033 affect?

CVE-2026-45033 affects copilot-cli. Severity is high (CVSS 7.8). GitHub Copilot CLI brings AI-powered coding assistance directly to your command line. Prior to 1.0.43, a security vulnerability has been identified in GitHub Copilot CLI where a malicious bare git repository nested inside a project directo

How urgent is CVE-2026-45033?

Priority 39/100. High severity; Public exploit reference

Software pages

GitHub vulnerabilities · Git vulnerabilities

References

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