Slack‑Claude Tag Integration Vulnerability Allows Unauthorized Enterprise Actions
What Happened — Tego AI identified that the “Claude Tag” Slack integration can be triggered with crafted messages to execute actions in an enterprise Slack workspace without proper authorization. The flaw stems from inadequate validation of tag payloads, enabling attackers to issue commands that bypass normal access controls.
Why It Matters for Compliance & Audit Readiness
- Demonstrates a gap in SOC 2 CC6.1 (Logical Access) – unauthorized actions were possible through a third‑party integration.
- Highlights the need for continuous monitoring of third‑party app activity as audit evidence of due‑diligence (SOC 2 CC7.1 – System Operations).
- Provides a concrete example of why access‑control policies must cover SaaS‑to‑SaaS integrations, not just internal accounts.
Who Is Affected — Organizations that have enabled the Claude Tag integration in Slack, spanning technology SaaS providers, professional services firms, and any enterprise that relies on Slack for collaboration.
Recommended Actions
- Review and tighten the Slack‑Claude integration configuration; restrict scopes to the minimum required.
- Implement real‑time monitoring of Slack API calls and tag usage, logging events for SOC 2 evidence.
- Conduct a focused SOC 2 access‑control test (CC6.1) on all third‑party integrations.
- Update internal policies to require security‑by‑design reviews for any new Slack app or bot.
Source: HackRead
Technical Notes — The attack vector is a maliciously crafted Slack message containing a Claude tag that the integration processes without proper authentication checks. No public CVE has been assigned; the vulnerability is limited to the integration logic. Affected data includes message content and any downstream commands executed in the enterprise environment. Source: HackRead