CVE-2026-103054

HIGHPre-NVD 7.17.1—
EchelonGraph scoreHIGH confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-09-30. A secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
7.1
EG Score
7.1HIGHhigh confidence
EG Risk
37
EG Risk 37/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity71% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.2%
EPSS %ILE
11th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 30, 2026

Last Modified

September 30, 2026

Advisory Details (5)

Auto-updated Sep 30, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_release, github.
generic

AiSOC 10.0.0 before 12.0.0 Unauthorized Tenant Access via MSSP | Advisories | VulnCheck

https://www.vulncheck.com/advisories/aisoc-10.0.0-before-12.0.0-unauthorized-tenant-access-via-mssp
generic

AiSOC/services/api/app/api/v1/endpoints/mssp.py at v11.2.0 · beenuar/AiSOC · GitHub

https://github.com/beenuar/AiSOC/blob/v11.2.0/services/api/app/api/v1/endpoints/mssp.py#L1073-L1110
github_release Patch Available

AiSOC v12.0.0

Patch available: beenuar/AiSOC v12.0.0

https://github.com/beenuar/AiSOC/releases/tag/v12.0.0
github_commit

commit 151264a8b846 (beenuar/AiSOC)

Fix landed in beenuar/AiSOC commit 151264a8b846 — awaiting tagged release

https://github.com/beenuar/AiSOC/commit/151264a8b846db55099e5e0f4d76c388e8df4a92
github Patch Available🟡 PoC Available

Improper Access Control and Authorization Bypass Through User-Controlled Key and Incorrect Authorization in aisoc · Advisory · beenuar/AiSOC · GitHub

https://github.com/beenuar/AiSOC/security/advisories/GHSA-mcg9-8pxf-j98v

Vendor Advisories for CVE-2026-103054(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 21× in last 7d / 21× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-04 10:07 UTCGHSA enrichment
  2. 2026-10-03 21:31 UTCEG score recompute
  3. 2026-10-03 21:31 UTCGHSA enrichment
  4. 2026-10-03 14:25 UTCEPSS rescore
  5. 2026-10-03 08:54 UTCGHSA enrichment
  6. 2026-10-02 20:17 UTCEG score recompute
  7. 2026-10-02 20:17 UTCGHSA enrichment
  8. 2026-10-02 07:36 UTCEG score recompute
  9. 2026-10-02 07:36 UTCGHSA enrichment
  10. 2026-10-01 19:49 UTCEPSS rescore
  11. 2026-10-01 19:00 UTCGHSA enrichment
  12. 2026-10-01 06:21 UTCGHSA enrichment
  13. 2026-09-30 17:45 UTCGHSA enrichment
  14. 2026-09-30 17:26 UTCEG score recompute
  15. 2026-09-30 17:26 UTCGHSA enrichment
  16. 2026-09-30 15:02 UTCEPSS rescore
  17. 2026-09-30 14:07 UTCEG score recompute
  18. 2026-09-30 14:07 UTCGHSA enrichment
  19. 2026-09-30 01:30 UTCEG score recompute
  20. 2026-09-30 00:36 UTCEG score recompute
  21. 2026-09-30 00:34 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-103054?
CVE-2026-103054 is a high vulnerability published on September 30, 2026. 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 addtenantsto_portfolio endpoint to claim unclaimed tenants and read their security…
When was CVE-2026-103054 disclosed?
CVE-2026-103054 was first published on September 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-103054 actively exploited?
CVE-2026-103054 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (11th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-103054?
CVE-2026-103054 has a CVSS base score of 7.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-103054?
A fix for CVE-2026-103054 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-103054 are linked in the Vendor Advisories panel on this page.

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