CVE-2026-108731 Raven 2.0.0 through 3.0.0 Missing Authorization via join_workspace Invite-Only Bypass
Authenticated users can bypass invite-only restrictions to join public workspaces, allowing unauthorized reading and posting in channels.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-108731?
CVE-2026-108731 is a medium-severity missing authorization vulnerability in The-Commit-Company raven, published on 11 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2026-108731?
How do I fix CVE-2026-108731?
No fix has been published for CVE-2026-108731 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-108731 being exploited?
There is no known exploitation of CVE-2026-108731 in the wild and no public exploit code.
Sources
Also known as GHSA-9xc3-m4r3-v8qc.