Medium 6.1Published May 7, 2026

CVE-2026-8106A reflected HTML injection vulnerability was identified in the GitHub Enterprise Server Management Console login page that could allow credential theft.

Updated under an hour ago (2026-10-19 09:10 UTC)

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It affects github enterprise_server. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for github enterprise_server

Exploited in the last 30 days

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 HTML attribute without proper sanitization, enabling an attacker to inject a form element that could capture administrator credentials. Exploitation required an administrator to click a crafted link and enter their credentials. This vulnerability affected GitHub Enterprise Server versions 3.19.1 through 3.19.5 and 3.20.0 through 3.20.1, and was fixed in versions 3.19.6 and 3.20.2. This vulnerability was reported via the GitHub Bug Bounty program.

CVSS: 6.1 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jun 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

github enterprise_server github:enterprise_server	from 3.19.1 before 3.19.6; from 3.20.0 before 3.20.2	NVD

References

https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.6release-notes, vendor-advisory
https://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.2release-notes, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.