CVE-2026-27208 is an OS Command Injection vulnerability classified under CWE-78, affecting bleon-ethical's api-gateway-deploy product, version 1.0.0. The vulnerability stems from improper neutralization of special elements in the entrypoint.sh script, allowing an attacker to inject and execute arbitrary OS commands within the container environment. Because the container runs as root, successful exploitation grants root privileges inside the container, enabling privilege escalation. This can lead to container escape, where the attacker breaks out of the container isolation to affect the host system or other infrastructure components. The vulnerability also relates to CWE-88 (Argument Injection), CWE-250 (Execution with Unnecessary Privileges), and CWE-269 (Improper Privilege Management). The vendor addressed the issue in version 1.0.1 by implementing strict input sanitization, secure delimiters in the entrypoint script, enforcing a non-root user (appuser) in the Dockerfile, and introducing mandatory security quality gates to prevent regressions. The CVSS v3.1 score of 9.2 reflects the critical severity, with an attack vector limited to local access (AV:L), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), and a scope change (S:C) indicating impact beyond the vulnerable component. The vulnerability compromises confidentiality (C:H), integrity (I:L), and availability (A:H) of affected systems. No known exploits are currently reported in the wild, but the potential impact is severe given the root-level access and container escape possibilities.

The vulnerability allows attackers with local access to execute arbitrary commands as root inside the container, which can lead to full compromise of the container environment. This includes unauthorized modification or destruction of data, disruption of services, and potential lateral movement if container escape is achieved. Organizations relying on api-gateway-deploy version 1.0.0 face risks of infrastructure compromise, data breaches, and service outages. The ability to escalate privileges and escape containers undermines the security boundaries typically enforced by containerization, increasing the attack surface. This can have cascading effects on cloud environments, microservices architectures, and DevOps pipelines where this product is deployed. The critical severity and scope change highlight the potential for widespread impact if exploited, especially in environments where containers run with elevated privileges or have access to sensitive resources.

Organizations should immediately upgrade bleon-ethical/api-gateway-deploy to version 1.0.1 or later, which includes fixes for this vulnerability. Until upgrade is possible, restrict local access to systems running the vulnerable version to trusted personnel only. Implement strict input validation and sanitization on any user-supplied data that may reach the container entrypoint or related scripts. Avoid running containers with root privileges; enforce non-root user execution within container configurations. Employ container security best practices such as using minimal base images, applying mandatory access controls (e.g., SELinux, AppArmor), and isolating containers with namespaces and cgroups. Regularly audit container images and deployment scripts for unsafe command execution patterns. Integrate security quality gates and automated scanning in CI/CD pipelines to detect similar issues early. Monitor logs and system behavior for signs of command injection or privilege escalation attempts. Consider network segmentation and zero-trust principles to limit lateral movement if a container is compromised.