CVE-2026-72924

GitHub CLI: `gh codespace ports forward` exposes forwarded services on all network interfaces by default

Published Aug 25, 2026 CVSS 4.0 · 2.1 Low EPSS < 1% KEV · Not listed

Description

GitHub CLI (gh) is GitHub's official command line tool. Versions 2.28.0 through 2.97.0 bind the local listener created by gh codespace ports forward to all available network interfaces by default. While port forwarding is active, a service in a Codespace can therefore become reachable through the user's non-loopback local IP addresses by other hosts that can route to the user's machine. This behavior does not change the GitHub-side visibility of the Codespaces port. Instead, it exposes the forwarded service through a wildcard-bound listener on the user's local machine, even when the source Codespaces port remains private. Exploitation requires a network-adjacent attacker to reach the victim's machine while forwarding is active. This issue is fixed in version 2.98.0.

Analysis

Technical impact

GitHub CLI versions 2.28.0 through 2.97.0 create a listener for the commands gh codespace ports forward that binds to all network interfaces instead of only the loopback interface. Consequently a service running inside a Codespace can be accessed by any host that can reach the user’s machine while port forwarding is active, even though the Codespace port remains intended as private on the GitHub side.

Affected Systems

The affected product is the official GitHub command line tool (gh) identified by the vendor/product pair cli:cli. All releases between 2.28.0 and 2.97.0 inclusive are impacted; the vulnerability is resolved in release 2.98.0.

Risk and Exploitability

The CVSS score of 2.1 indicates a low severity risk. The EPSS score is not available, and the vulnerability is not listed in the CISA KEV catalog. An attacker must be on a network that can reach the victim’s host and must have port forwarding enabled to exploit the weakness. The problem does not give an attacker remote code execution or privilege escalation capability; it merely exposes a private service to the local network.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

cli

affected

Version	Status	Constraints
`>= 2.28.0, < 2.98.0`	affected	—

No data.

Vendor Product Versions

Cli

Version	Status	Scheme	Platform
`[2.28.0,2.98.0)`	affected	semver	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Upgrade the GitHub CLI to version 2.98.0 or newer.
Configure your firewall or host-based rules to block incoming connections to the forwarded port on non‑loopback interfaces, ensuring the service remains reachable only from the local machine.
Avoid using the gh codespace ports forward command when local network exposure is unacceptable; instead, access the service via SSH tunnels or other secure channels.

Generated by OpenCVE AI on August 26, 2026 at 02:19 UTC.

Tracking

Advisories

No advisories available

Metrics

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required Low

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.257% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://github.com/cli/cli/releases/tag/v2.98.0
https://github.com/cli/cli/security/advisories/GHSA-vfhh-p7hm-pxfh
https://nvd.nist.gov/vuln/detail/CVE-2026-72924
https://www.cve.org/CVERecord?id=CVE-2026-72924

History

Aug 31, 2026 12:15 PM Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
References		https://nvd.nist.gov/vuln/detail/CVE-2026-72924 https://www.cve.org/CVERecord?id=CVE-2026-72924
Metrics	threat_severity `None`	cvssV3_1 `{'score': 4.6, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}` threat_severity `Moderate`

Aug 26, 2026 4:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Aug 26, 2026 3:45 AM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Cli Cli cli
Vendors & Products		Cli Cli cli

Aug 25, 2026 9:15 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		GitHub CLI (gh) is GitHub's official command line tool. Versions 2.28.0 through 2.97.0 bind the local listener created by gh codespace ports forward to all available network interfaces by default. While port forwarding is active, a service in a Codespace can therefore become reachable through the user's non-loopback local IP addresses by other hosts that can route to the user's machine. This behavior does not change the GitHub-side visibility of the Codespaces port. Instead, it exposes the forwarded service through a wildcard-bound listener on the user's local machine, even when the source Codespaces port remains private. Exploitation requires a network-adjacent attacker to reach the victim's machine while forwarding is active. This issue is fixed in version 2.98.0.
Title		GitHub CLI: `gh codespace ports forward` exposes forwarded services on all network interfaces by default
Weaknesses		CWE-1327 CWE-668
References		https://github.com/cli/cli/releases/tag/v2.98.0 https://github.com/cli/cli/security/advisories/GHSA-vfhh-p7hm-pxfh
Metrics		cvssV4_0 `{'score': 2.1, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}`