GitHub Enterprise Server 3.20.3 Released With Fox for Critical Vulnerabilities

GitHub Enterprise Server 3.20.3 is a security-focused patch that fixes a critical pre-auth SSRF allowing internal HTTP requests, two high-severity local kernel privilege-escalation bugs (Dirty Frag), and additional SSRF/secret-exposure issues; administrators must rotate the GPG signing key before upgrading and prioritize deployment for internet-exposed or multi-tenant instances to prevent internal service access and potential full appliance compromise.