Missing Authorization in Raven 2.0.0 to 3.0.0 Allows Unauthorized Access to Public Workspaces
CVE-2026-108731

5.3MEDIUM

Key Information:

Vendor

The-commit-company

Status
Raven
Vendor
CVE Published:
11 October 2026

What is CVE-2026-108731?

Raven versions 2.0.0 to 3.0.0 exhibit a missing authorization vulnerability that allows authenticated users to bypass the can_only_join_via_invite setting. This flaw enables attackers with the Raven User role to exploit the join_workspace method, gaining unauthorized access to join Public workspaces. Once joined, these users can read and contribute in both Public and Open channels, potentially leading to information leakage and unauthorized communications.

Affected Version(s)

raven 2.0.0 <= 3.0.0

References

https://hackmd.io/@haind03/frappe-raven-invite-only-works...
third-party-advisory
https://github.com/The-Commit-Company/raven/blob/a732e10f...
technical-description
https://github.com/The-Commit-Company/raven/blob/a732e10f...
technical-description

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

HaiND from the Post and Telecommunication Institute of Technology
.