CVE-2026-108731

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.

CVSS 4.0

5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 12% of CVEs (scores of 2026-10-25)

CWE

CWE-862

Published

2026-10-11

Modified

2026-10-16

Record from

the NVD, synced 2026-10-19

References

• https://github.com/The-Commit-Company/raven
• https://github.com/The-Commit-Company/raven/blob/a732e10f9c8b2ab3446038396e3eea763da617e7/raven/api/workspaces.py#L58-L67
• https://github.com/The-Commit-Company/raven/blob/a732e10f9c8b2ab3446038396e3eea763da617e7/raven/permissions.py#L74-L90
• https://hackmd.io/@haind03/frappe-raven-invite-only-workspace-flag-unenforced-20261010
• https://www.vulncheck.com/advisories/raven-2.0.0-through-3.0.0-missing-authorization-via-join-workspace-invite-only-bypass

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