CVE-2021-41599

high

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.

References

https://docs.github.com/en/enterprise-server%403.2/admin/release-notes#3.2.5

https://docs.github.com/en/enterprise-server%403.1/admin/release-notes#3.1.13

https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.21

Details

Source: Mitre, NVD

Published: 2022-02-18

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 6.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 8.8

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

Severity: High

EPSS

EPSS: 0.02496