๐Ÿ” CVE Alert

CVE-2026-80209

MEDIUM 4.3

Fonoster through 0.22.7 Incorrect Authorization in the Identity UpdateWorkspace Handler

CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th

The updateWorkspace handler in mods/identity/src/workspaces/createUpdateWorkspace.ts in Fonoster through 0.22.7 invokes the gRPC callback with PERMISSION_DENIED when createIsWorkspaceMember reports that the caller is not a member of the target workspace, but it does not return. Execution continues into prisma.workspace.update, which is scoped by the workspace reference alone, so the rename commits before the second callback is issued and the caller receives a permission error for a write that already succeeded. The gRPC interceptor in mods/common/src/identity/createAuthInterceptor.ts binds the workspace accessKeyId to the caller's token only for paths in workspaceResourceAccess or workspaceResourceOwnerOrAdminAccess, and Identity/UpdateWorkspace is listed in fullIdentityAccess, which the base USER role holds. Any authenticated user can therefore rename an arbitrary workspace in the deployment.

CWE CWE-863
Vendor fonoster
Product fonoster
Published Aug 27, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

Affected Versions

fonoster / fonoster
0 โ‰ค 0.22.7

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
github.com: https://github.com/fonoster/fonoster/issues/861 github.com: https://github.com/fonoster/fonoster github.com: https://github.com/fonoster/fonoster/blob/v0.22.7/mods/identity/src/workspaces/createUpdateWorkspace.ts#L47 vulncheck.com: https://www.vulncheck.com/advisories/fonoster-through-0.22.7-incorrect-authorization-in-the-identity-updateworkspace-handler

Credits

๐Ÿ” George Chen