CVE-2021-41599

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

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.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 2.50% Top 20%
Affected: GitHub GitHub Enterprise Server
Published at:
Updated at:

References

Link Tags
https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.21
https://docs.github.com/en/enterprise-server%403.1/admin/release-notes#3.1.13
https://docs.github.com/en/enterprise-server%403.2/admin/release-notes#3.2.5

Frequently Asked Questions

What is the severity of CVE-2021-41599?
CVE-2021-41599 has been scored as a high severity vulnerability.
How to fix CVE-2021-41599?
To fix CVE-2021-41599, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-41599 being actively exploited in the wild?
It is possible that CVE-2021-41599 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-41599?
CVE-2021-41599 affects GitHub GitHub Enterprise Server.
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