A Server-Side Request Forgery vulnerability was identified in GitHub Enterprise Server that allowed an attacker with the Site Administrator role to gain arbitrary code execution capability on the GitHub Enterprise Server instance. Exploitation required authenticated access to GitHub Enterprise Server as a user with the Site Administrator role. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.13 and was fixed in versions 3.12.5, 3.11.11, 3.10.13, and 3.9.16. This vulnerability was reported via the GitHub Bug Bounty program.

A server-side request forgery (SSRF) vulnerability was identified in the GitHub Enterprise Server notebook viewer that allowed an attacker to access internal services by exploiting URL parser confusion between the validation layer and the HTTP request library. The hostname validation used a different URL parser than the request library, enabling a crafted URL to pass validation while directing the request to an unintended host. Exploitation required network access to the GitHub Enterprise Server instance. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.16.18, 3.17.15, 3.18.9, 3.19.6, and 3.20.2. This vulnerability was reported via the GitHub Bug Bounty program.

HCL MyXalytics is affected by out-of-band resource load (HTTP) vulnerability. An attacker can deploy a web server that returns malicious content, and then induce the application to retrieve and process that content.