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PatchSiren cyber security CVE debrief

CVE-2026-47172 duck-organization CVE debrief

CVE-2026-47172 is a CRITICAL vulnerability in Quest Bot, an open-source Discord bot. The vulnerability allows for remote code execution due to a privileged deploy workflow that runs after an unprivileged build workflow, potentially allowing an attacker to deploy a malicious container and compromise the production bot. This issue has been patched in version 1.0.3.

Vendor
duck-organization
Product
quest-bot
CVSS
CRITICAL 9.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-11
Original CVE updated
2026-06-11
Advisory published
2026-06-11
Advisory updated
2026-06-11

Who should care

Users of Quest Bot prior to version 1.0.3, administrators of Discord servers using Quest Bot, and security teams monitoring for potential remote code execution vulnerabilities in their applications.

Technical summary

The Quest Bot 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.

Defensive priority

High

Recommended defensive actions

  • Upgrade Quest Bot to version 1.0.3 or later.
  • Restrict the deploy workflow to only run on trusted branches.
  • Monitor for suspicious pull requests and deployment activities.

Evidence notes

CVE-2026-47172 has a CVSS score of 9.5 and is considered CRITICAL. The vulnerability was published on 2026-06-11T19:16:45.240Z and last modified on 2026-06-11T20:58:18.123Z.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-47172 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-47172

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-47172 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-47172

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.