SB2026082162 - Improper access control in GitHub CLI

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Main Vulnerability Database SB2026082162

SB2026082162 - Improper access control in GitHub CLI

Published: August 21, 2026

Security Bulletin ID SB2026082162
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Adjecent network
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper access control (CVE-ID: CVE-2026-72924)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: 5.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote user to access a forwarded service and disclose sensitive information.

The vulnerability exists due to improper access control in the `gh codespace ports forward` local TCP listener when creating a forwarded port listener bound to all network interfaces by default. A remote user can connect to the exposed non-loopback listener to access a forwarded service and disclose sensitive information.

Exploitation requires the victim to be actively forwarding a port and the attacker to be able to route traffic to the victim\'s machine.


Remediation

Install update from vendor's website.

References