CVE-2026-8106
Last modified
CVE-2026-8106 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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. EPSS estimates a 0.16% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Github | Enterprise Server | >= 3.19.1, < 3.19.6 |
| Github | Enterprise Server | >= 3.20.0, < 3.20.2 |
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
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-8106?
How severe is CVE-2026-8106?
How do I fix CVE-2026-8106?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-8094Other issue in the WebRTC component. This vulnerability was …9.8
- CVE-2026-8095The Frontend File Manager Plugin plugin for WordPress is vul…8.1
- CVE-2026-8096The Kirki – Freeform Page Builder, Website Builder & Customi…6.5
- CVE-2026-8097A security flaw has been discovered in CodeAstro Online Clas…6.3
- CVE-2026-8098A security vulnerability has been detected in code-projects …7.3
- CVE-2026-8100Impact A security issue has been identified in Chef 360 tha…8.6
- CVE-2026-8108The installation of Fuji Tellus adds a driver to the kernel …7.8
- CVE-2026-8109An exposed dangerous method on the Core Server of Ivanti End…6.5
- CVE-2026-8110Incorrect permissions assignment in the agent of Ivanti Endp…7.8
- CVE-2026-8111SQL injection in the web console of Ivanti Endpoint Manager …8.8
- CVE-2026-8112A vulnerability was found in 8421bit MiniClaw up to 223c16a1…8.8
- CVE-2026-8113A vulnerability was determined in 8421bit MiniClaw up to 439…6.5
Are you affected by CVE-2026-8106?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST