CVE-2024-52308 — cli
HIGHCVE-2024-52308 is a high-severity (CVSS 8) CWE-77 vulnerability in github.com/cli/cli/v2. A fix is available for github.com/cli/cli/v2 — see the affected versions and patch details below.
Connecting to a malicious Codespaces via GH CLI could allow command execution on the user's computer
Exploitation Status
No confirmed exploitation observed yet
- A successful exploit gives an attacker total control of the affected component, not partial access.
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2024-52308.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
github.com/cli/cli/v2🐹github.com/cli/cliReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.
Description
Summary
A security vulnerability has been identified in GitHub CLI that could allow remote code execution (RCE) when users connect to a malicious Codespace SSH server and use the gh codespace ssh or gh codespace logs commands.
Details
The vulnerability stems from the way GitHub CLI handles SSH connection details when executing commands. When developers connect to remote Codespaces, they typically use a SSH server running within a devcontainer, often provided through the default devcontainer image. GitHub CLI retrieves SSH connection details, such as remote username, which is used in executing ssh commands for gh codespace ssh or gh codespace logs commands.
This exploit occurs when a malicious third-party devcontainer contains a modified SSH server that injects ssh arguments within the SSH connection details. gh codespace ssh and gh codespace logs commands could execute arbitrary code on the user's workstation if the remote username contains something like -oProxyCommand="echo hacked" #. The -oProxyCommand flag causes ssh to execute the provided command while # shell comment causes any other ssh arguments to be ignored.
In 2.62.0, the remote username information is being validated before being used.
Impact
Successful exploitation could lead to arbitrary code execution on the user's workstation, potentially compromising the user's data and system.
Remediation and Mitigation
- Upgrade
ghto2.62.0 - Exercise caution when using custom devcontainer images, prefer default or pre-built devcontainers from trusted sources.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/cli/cli/v2 | all versions | 2.62.0go get github.com/cli/cli/v2@v2.62.0 |
| 🐹Go | github.com/cli/cli | all versions | 2.62.0go get github.com/cli/cli@v2.62.0 |
Affected Products
cligithubDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/cli/cli/v2, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/cli/cli/v2 to 2.62.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-52308 is resolved across your whole dependency graph.
Workarounds
Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.
Frequently Asked Questions
Is CVE-2024-52308 in your dependencies?
Find it across Go, including transitive dependencies.