GitBook Confirms AI Agent Attack Exposed Infrastructure Credentials and Integration Tokens

GitBook security incident involving compromised infrastructure credentials, potentially exposed API tokens and integration secrets.

GitBook has disclosed a security incident in which an attack involving AI agents compromised infrastructure credentials on November 2, potentially exposing customer integration tokens, Git Sync secrets, API tokens and questions submitted to GitBook Assistant.

The company said it responded by revoking all customer API tokens and replacing its infrastructure credentials and secrets. GitBook also advised users to rotate tokens and secrets connected to the platform and re-authenticate their GitBook MCP server.

According to Coin Bureau, which shared the alert, GitBook's application, API and published documentation have returned online. However, some services remain degraded following the incident.

What Information May Have Been Exposed?

The compromised infrastructure credentials could have given the attacker access to several categories of sensitive information and authentication data. These include integration tokens, Git Sync secrets and API tokens, as well as questions visitors submitted through GitBook Assistant.

GitBook is a platform used by teams to create and publish markets documentation and knowledge bases. Its integrations and synchronization features connect documentation workflows with external services, making the security of associated credentials important for organizations using the platform.

The disclosure specifically identifies the potential exposure of credentials and information associated with GitBook's integrations and assistant feature. It does not establish that every listed item was accessed or misused, but the company has taken steps to invalidate customer API tokens and replace infrastructure secrets.

GitBook Urges Users to Rotate Credentials

GitBook's response includes revoking all customer API tokens and replacing the credentials and secrets used by its infrastructure. The company has also instructed users to take additional security measures on their own accounts and connected services.

Users should rotate their GitBook tokens and any tokens or secrets associated with third-party services connected to the platform. They are also advised to re-authenticate the GitBook MCP server to refresh its authorization.

These steps are intended to ensure that previously issued credentials are no longer relied upon following the reported compromise. Organizations using GitBook integrations should therefore review their connected services and update the relevant authentication details.

Platform Services Return Online

Despite the security incident, GitBook's application, API and published documentation are back online. The company has indicated, however, that some services are still operating with degraded performance.

The incident was reported as an attack involving AI agents that compromised infrastructure credentials on November 2. Coin Bureau shared the alert and outlined the potentially affected credentials, GitBook's response and the security steps users should take.

Writer: Victoria Hale
Technology & Blockchain Writer

Victoria Hale writes about blockchain technology, digital infrastructure, and the intersection of emerging technologies with finance. Her articles explore how new protocols and systems are shaping the evolving digital economy.

She prioritises clarity and accuracy when explaining technical developments to a general audience.

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