What is CVE-2026-8106?

CVE-2026-8106 is a medium-severity vulnerability in Github Enterprise Server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-05-07.

How severe is CVE-2026-8106?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Github Enterprise Server

CVE-2026-8106

A reflected HTML injection vulnerability was identified in the GitHub Enterprise Server Management Console login page that could allow credential theft. The redirect_to query parameter on the /setup/unlock endpoint was reflected into an HT…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (8.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Github Enterprise Server — versions 3.19.1, 3.20.0, 3.19.0
Github Enterprise_server

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

product-cna@github.com (release-notes, Release Notes, Vendor Advisory)
product-cna@github.com (release-notes, Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2026-8106?: CVE-2026-8106 is a medium-severity vulnerability in Github Enterprise Server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-05-07.
How severe is CVE-2026-8106?: Medium severity. CVSS v3 base score is 6.1 out of 10.