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API Location Creation Bypasses FMCS Parent-Child Company Boundary Validation

Moderate
snipe published GHSA-8w8c-8mx9-52cw Jun 24, 2026

Package

No package listed

Affected versions

=<8.6.1

Patched versions

8.6.2

Description

Impact

When Full Multiple Companies Support and scope_locations_fmcs are both enabled, the API endpoint for creating locations can still create a child location under a parent location from a different company. The code detects the invalid parent/child company mismatch, but it appears not to return immediately, so the request continues and the record is still saved. The equivalent Web flow correctly rejects the same relationship.

This breaks the expected company-boundary enforcement for location hierarchies under FMCS. It allows cross-company parent/child relationships to be inserted into the location tree, which can affect hierarchy integrity, downstream business logic, and the consistency of company isolation between the Web and API interfaces.

Patches

Patched in 9a8cbd6

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVE ID

CVE-2026-55472

Weaknesses

No CWEs

Credits