Mintlify experienced a security incident involving their integrations provider Composio, where user credentials for third-party integrations in Slack Agent and Workflows products may have been accessed. The company disabled affected features, revoked all vendor and customer credentials associated with Composio, and directly contacted all potentially impacted customers via email. GitHub and GitLab integrations remained secure as they are handled internally and were never exposed to the compromised vendor.
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We have disabled the affected features, revoked all credentials associated with this vendor, and attempted to revoke all customer credentials associated with this vendor.
Additionally, we have reached out via email to the entire subset of customers potentially affected by this incident. We are continuing to monitor the vendor's security published security bulletin for updates:
https://composio.dev/blog/composio-may-2026-security-incident
We have completed an in-depth review of corporate devices, production and development systems, and have found no indicators of compromise. Automated alerts have been configured, and we are continuing to monitor the situation.
We have disabled the affected features, revoked all credentials associated with this vendor, and attemped to revoke all customer credentials associated with this vendor.
Additionally, we have reached out via email to the subset of customers potentially affected by this incident. We are continuing to monitor the vendor's security published security bulletin for updates:
https://composio.dev/blog/composio-may-2026-security-incident
We are continuing to review internally to ensure the integrity of our systems, but no indicators of compromise have been discovered and we currently have no reason to believe any compromise has taken place.
We were notified of a security incident involving our integrations provider, Composio, in which user credentials may have been accessed for third-party integrations in our Slack Agent and Workflows product. As a precaution, we are proactively rotating all affected customer credentials and will reach out directly to every impacted customer shortly.
Note: GitHub and GitLab integrations were never exposed to Composio. These are handled in-house and remain secure.
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