CVE-2026-103054 (CVSS 7.1)

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.

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CVSS v3.1 Score

7.1

HIGH

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

EPSS — Exploit Prediction

0.0022

Probability of exploitation

0.12%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-639 CWE-639

References

Other 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

Frequently Asked Questions

What is CVE-2026-103054? +

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. It has a CVSS v3.1 base score of 7.1 (HIGH).

How severe is CVE-2026-103054? +

CVE-2026-103054 has a CVSS v3.1 score of 7.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0022, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-103054? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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