CVE-2026-27208

9.2 CRITICAL

📋 TL;DR

This vulnerability allows attackers to execute arbitrary operating system commands with root privileges within the container running bleon-ethical/api-gateway-deploy version 1.0.0. Attackers can potentially escape the container and modify infrastructure. Anyone using version 1.0.0 of this API gateway deployment software is affected.

💻 Affected Systems

Products:
  • bleon-ethical/api-gateway-deploy
Versions: Version 1.0.0 only
Operating Systems: Any OS running Docker containers
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects the specific API gateway deployment package, not the underlying API gateway software itself.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full container escape leading to complete compromise of the underlying host, lateral movement across infrastructure, and unauthorized modifications to systems and data.

🟠

Likely Case

Container compromise allowing data theft, service disruption, and deployment of malicious payloads within the container environment.

🟢

If Mitigated

Limited impact with proper network segmentation, container security controls, and monitoring in place, potentially containing the attack to the affected container.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

The vulnerability involves OS command injection which typically has low exploitation complexity when inputs are not properly sanitized.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.0.1

Vendor Advisory: https://github.com/bleon-ethical/api-gateway-deploy/security/advisories/GHSA-chh5-w73q-4gmm

Restart Required: Yes

Instructions:

1. Update to version 1.0.1 from the GitHub repository. 2. Rebuild and redeploy the container. 3. Verify the non-root user 'appuser' is being used in the container.

🔧 Temporary Workarounds

Implement strict input validation

all

Add input sanitization to reject any commands containing shell metacharacters

# Implement input validation in your application code to reject suspicious characters

Run container as non-root user

linux

Override the container to run with a non-root user even before patching

docker run --user 1001:1001 your-container-image

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate affected containers from critical infrastructure
  • Deploy runtime security monitoring to detect command injection attempts and container escape behaviors

🔍 How to Verify

Check if Vulnerable:

Check if you're running version 1.0.0 of bleon-ethical/api-gateway-deploy by examining your deployment configuration or container image tags.

Check Version:

docker exec <container_name> cat /app/version.txt || check your deployment manifest for image tag

Verify Fix Applied:

Verify the container is running version 1.0.1 and check that processes inside the container are running as user 'appuser' rather than root.

📡 Detection & Monitoring

Log Indicators:

  • Unusual command execution patterns in container logs
  • Processes running as root inside containers that should run as non-root users
  • Shell metacharacters in API request logs

Network Indicators:

  • Unexpected outbound connections from containers
  • Traffic to command and control infrastructure

SIEM Query:

container.runtime="docker" AND process.user="root" AND image.name="*api-gateway-deploy*" AND image.tag="1.0.0"

🔗 References

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