CVE-2021-41599 - CVE House

Back to Database

Status published High CVE-2021-41599

Improper control flow in GitHub Enterprise Server hosted Pages leads to remote code execution

8.8 CVSS

Vulnerability Description

A remote code execution vulnerability was identified in GitHub Enterprise Server that could be exploited when building a GitHub Pages site. To exploit this vulnerability, an attacker would need permission to create and build a GitHub Pages site on the GitHub Enterprise Server instance. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.3 and was fixed in versions 3.0.21, 3.1.13, 3.2.5. This vulnerability was reported via the GitHub Bug Bounty program.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-41599

Check My Exposure

Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

yvvdwf

References

More from GitHub

View All →

Incorrect authorization vulnerability was identified in GitHub Enterprise Server that allowed read-only access

Incorrect authorization vulnerability was identified in GitHub Enterprise Server that allowed unauthorized read-only access

GitHub Enterprise Server Information Disclosure Vulnerability Exposes Private Repository Names via Search API

Pre-Receive Hook Remote Code Execution vulnerability was identified in GitHub Enterprise Server that allowing Privilege Escalation

Markdown math block sanitization bypass allows privilege escalation and unauthorized workflow triggers

Affected Vendor

GitHub

View all reports →

Affected Software

GitHub Enterprise Server

Vulnerable Versions:

3.0, 3.1, 3.2

Timeline

Official Publish: February 17th, 2022

Last Modified: August 4th, 2024

Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application

T1059 Command and Scripting Interpreter

T1068 Exploitation for Privilege Escalation

Privilege Escalation

T1105 Ingress Tool Transfer

Command and Control