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.
Does this matter?
Lower severity and a low EPSS score (0.22%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 5.3 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.22% probability · 13th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-862
- Source
- disclosure@vulncheck.com
EPSS moved from 0.2% on 12 October 2026 to 0.2% on 26 October 2026.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.