
Critical Bifrost AI Gateway Flaw Exposes Enterprise AI Infrastructure to Remote Code Execution
A critical vulnerability (CVE-2026-90898, CVSS 9.8) in Bifrost, an open-source AI gateway routing requests to over 20 LLM providers, allows unauthenticated remote code execution through a single HTTP request. Discovered by JFrog Security Research in September 2026, the flaw affects all versions before 2.1.0 when management authentication is disabled (the default configuration). Attackers can register malicious MCP clients via the management API endpoint, gaining immediate command execution and access to stored API keys for all connected AI providers. The official Docker image exposes this vulnerability to external networks by binding to 0.0.0.0. This incident highlights the growing security risks in the rapidly expanding AI infrastructure ecosystem, where authentication-by-default failures create critical attack surfaces. With AI gateways becoming central chokepoints for enterprise AI workflows and storing sensitive provider credentials, these vulnerabilities represent a new class of high-impact targets for attackers seeking to compromise AI operations at scale.
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