CVE-2026-42298 Postiz: Arbitrary Code Execution and Token Exfiltration in pr-docker-build.yml via untrusted Dockerfile.dev

Postiz is an AI social media scheduling tool. Prior to commit da44801, a "Pwn Request" vulnerability in the Build and Publish PR Docker Image workflow .github/workflows/pr-docker-build.yml allows any unauthenticated user to execute arbitrary code during the Docker build process and exfiltrate a...