CVE-2026-108731
Received Received - Intake

Raven Workspace Unauthorized Join Vulnerability

Publication date: 2026-10-11

Last updated on: 2026-10-11

Assigner: VulnCheck

Description
Raven 2.0.0 through 3.0.0 contains a missing authorization vulnerability that allows authenticated users to join invite-only Public workspaces by ignoring the can_only_join_via_invite setting. Attackers with the Raven User role can call the join_workspace method to become persistent members, reading and posting in Public and Open channels.

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Meta Information

Published
2026-10-11
Last Modified
2026-10-11
Generated
2026-10-11
AI Q&A
2026-10-11
EPSS Evaluated
N/A
NVD
CVE-2026-108731
EUVD
EUVD-2026-96897

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
The-Commit-Company raven 2.0.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

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Executive Summary

This vulnerability is a missing authorization flaw in Raven versions 2.0.0 through 3.0.0. It allows authenticated users with the Raven User role to bypass the invite-only restriction for Public workspaces by calling the join_workspace method. The can_only_join_via_invite setting is ignored, enabling unauthorized access to restricted workspaces.

Detection Guidance

Check Raven API logs for unauthorized join_workspace calls. Inspect workspace membership logs for unexpected additions by users with Raven User role. Verify if can_only_join_via_invite settings are enforced by testing workspace join attempts.

Impact Analysis

Attackers can join invite-only Public workspaces without permission, becoming persistent members. This grants them access to read and post in Public and Open channels within those workspaces, potentially exposing sensitive communications intended only for invited members.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data in workspaces, violating confidentiality requirements in GDPR and HIPAA. It may result in data breaches, non-compliance with access control mandates, and potential legal or regulatory penalties.

Mitigation Strategies

Upgrade Raven to a patched version beyond 3.0.0. Review workspace memberships for unauthorized users. Implement stricter access controls and audit API calls to join_workspace. Disable Public workspace creation if not required.

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