CVE-2026-103956
CriticalCVSS 10.0Summary
Missing authentication for a critical function in the authentication dependency in Loom for AWS before 1.6.1 allowed remote actors to obtain super-admin authority over the agent control plane, including registering tool servers, reading stored integration credentials, and rewriting the IAM role policies attached to managed agent roles, via any request to the application API in a deployment where no identity provider is configured.
Risk Assessment
In deployments without a configured identity provider, a remote attacker can obtain super-admin authority over the agent control plane. This enables registering tool servers, stealing integration credentials, and modifying IAM policies, leading to full compromise of the AWS environment.
Recommendation
Upgrade Loom for AWS to version 1.6.1 or later. Ensure an identity provider is configured in every deployment to prevent unauthorized access.
Other vulnerabilities in Loom for AWS
See all- CVE-2026-103958High
Loom for AWS before 1.7.0 contains a server-side request forgery vulnerability in the tool server and remote agent connection handling. An authenticated remote user can obtain the credentials of the application's own container role and read responses from arbitrary internal network locations by supplying a crafted connection address when registering, updating, or testing a tool server or remote agent.
- CVE-2026-103957Medium
Server-side request forgery in the OAuth2 discovery handling in Loom for AWS before 1.7.0 might allow an authenticated remote user to obtain the access token of another user of the deployment and to cause the application to issue requests to arbitrary internal network locations. This is achieved via a crafted discovery document address supplied when registering a tool server or remote agent configured for delegated authentication.
Original NVD description (English source)
Missing authentication for critical function in the authentication dependency in Loom for AWS before 1.6.1 allowed remote actors to obtain super-admin authority over the agent control plane, including registering tool servers, reading stored integration credentials, and rewriting the IAM role policies attached to managed agent roles, via any request to the application API in a deployment where no identity provider is configured. To remediate this issue, users should upgrade to version 1.6.1 or later.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS