CVE-2026-47172 CRITICAL

CVE-2026-47172: Quest Bot: Untrusted pull request code can be built and deployed by privileged `workflow_run` deployment.

Vendor Duck-Organization
Product quest-bot
Weakness CWE-829 · Inclusion from untrusted sphere
Published June 11, 2026
Last update June 11, 2026

CVSS base score

9.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

What the vulnerability does

01Description

Quest Bot is an opensource modern Discord Bot built for moderation, utilities and support. Prior to version 1.0.3, the repository has a privileged deploy workflow that runs after the unprivileged build workflow completes. The build workflow runs on pull requests, and the deploy workflow checks out the triggering workflow’s head_sha, builds that code into a Docker image, pushes it as latest, and triggers production deployment. If an attacker can open a pull request from a branch named main, the deploy workflow condition can treat the PR build as deployable and build the attacker-controlled commit in a privileged deployment context. This can result in malicious container deployment and production bot compromise. This issue has been patched in version 1.0.3.

Key dates

02Disclosure timeline

June 11, 2026 CVE published
June 11, 2026 Record updated