Security Advisory

CVE-2026-42298

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-05-08 22:24:10

Last updated 2026-05-11 18:02:03

Assigner GitHub_M

State PUBLISHED

Description

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 highly privileged GITHUB_TOKEN (write-all permissions). This can be achieved simply by opening a Pull Request from a fork with a maliciously modified Dockerfile.dev. This issue has been patched via commit da44801.

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