CVE-2026-103054: AiSOC 10.0.0 before 12.0.0 Unauthorized Tenant Access via MSSP

Severity: high (CVSS 7.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-30 · updated 2026-09-30
Weakness: CWE-639

Description

AiSOC versions before 12.0.0 contain an authorization bypass vulnerability in the MSSP module that allows authenticated users to add arbitrary tenants to portfolios they own. Attackers can submit tenant UUIDs via the add_tenants_to_portfolio endpoint to claim unclaimed tenants and read their security alerts, incidents, and posture metrics without consent.

Affected products

beenuar AiSOC: from 10.0.0 before 12.0.0 — fixed in 12.0.0

How to fix

Upgrade to a fixed version: beenuar AiSOC 12.0.0. Check the vendor advisory for mitigations.

References

https://github.com/beenuar/AiSOC/blob/v11.2.0/services/api/app/api/v1/endpoints/mssp.py#L1073-L1110
https://github.com/beenuar/AiSOC/commit/151264a8b846db55099e5e0f4d76c388e8df4a92
https://github.com/beenuar/AiSOC/releases/tag/v12.0.0
https://github.com/beenuar/AiSOC/security/advisories/GHSA-mcg9-8pxf-j98v
https://www.vulncheck.com/advisories/aisoc-10.0.0-before-12.0.0-unauthorized-tenant-access-via-mssp
https://github.com/beenuar/AiSOC/security/advisories/GHSA-mcg9-8pxf-j98v

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