CVE-2021-22870

A path traversal vulnerability was identified in GitHub Pages builds on GitHub Enterprise Server that could allow an attacker to read system files. 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 3.0.19, 3.1.11, and 3.2.3. This vulnerability was reported via the GitHub Bug Bounty program.

• CWE-23
• CWE-22

• https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.19
• https://docs.github.com/en/enterprise-server%403.1/admin/release-notes#3.1.11
• https://docs.github.com/en/enterprise-server%403.2/admin/release-notes#3.2.3
• https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.19
• https://docs.github.com/en/enterprise-server%403.1/admin/release-notes#3.1.11
• https://docs.github.com/en/enterprise-server%403.2/admin/release-notes#3.2.3

Published

Nov 10, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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