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Schemata API Flaw Exposed Military Training Data and Service Member Records

Updated 20d agoFirst seen May 6, 20262 sources

Schemata, an AI-powered virtual training platform used by defense customers under active Department of Defense contracts, exposed cross-tenant data through API endpoints that lacked effective authorization checks. Researchers at Strix reported that a low-privilege account could access user listings, organization records, course information, training metadata, and direct AWS-hosted document links belonging to other tenants. The exposed material reportedly included confidential naval maintenance training content, Army field manuals covering explosive ordnance handling and tactical deployment, and service member records containing names, email addresses, enrollment details, and military base affiliations.

Researchers said the same authorization failures also affected write-enabled routes, creating the potential for unauthorized modification or deletion of training courses. Strix disclosed the issue privately on December 2, 2025 and said remediation took roughly 150 days despite repeated follow-ups; Schemata said it patched the exposed endpoints on May 1, 2026, found no evidence of third-party exploitation, and began working with cybersecurity consultants and government authorities. The exposure has intensified scrutiny of basic tenant-isolation controls and compliance obligations tied to protecting defense-related data, including Controlled Unclassified Information under DFARS 252.204-7012 and CMMC requirements.

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Schemata API Flaw Exposed Military Training Data and Service Member Records
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EVENT TIMELINE

How this story unfolded

3 events from the most recent confirmed update back to the earliest known activity.

3 EVENTS
May 6, 20262mo ago

Schemata says no exploitation was found and authorities were engaged

After remediation, Schemata said it found no evidence that any third party exploited the vulnerability and stated it was working with cybersecurity consultants and government authorities. The company also said it remediated the issue the same day it received actionable details from a verified researcher.

A DOD contractor’s API flaw exposed military course data and service member records | CyberScoop
May 1, 20262mo ago

Schemata patches exposed API endpoints

Schemata acknowledged the exposed endpoints and applied a patch after the vulnerability remained unremediated for roughly 150 days. Researchers later verified that the remediation was in place.

Zero-Auth Flaw Exposes DoD Contractor to Cross-Tenant Data Access
Dec 2, 20257mo ago

Strix privately discloses Schemata API flaw

Strix reported a zero-authorization flaw in Schemata's API to the company, describing cross-tenant access to military training materials and service member records. The issue reportedly allowed low-privilege users to access data across organizations due to missing authorization checks.

A DOD contractor’s API flaw exposed military course data and service member records | CyberScoop
LINKED ENTITIES

Related entities

Vulnerabilities, threat actors, malware, products, organizations, and breaches Mallory has linked to this story.

8 LINKEDOpen in app
Affected products
1 linked
Amazon Web Services
Organizations
5 linked
Amazon Web ServicesSchemataStrixAndreessen HorowitzCyberScoop
Breaches
2 linked
SCHEMATA-2026-05DEPARTMENTOFDEFENSE-2026-05
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