CVE-2026-19503
Insufficient OIDC endpoint validation could invoke unintended local protocol handlers
CVSS Score
4.8
EPSS Score
0.0%
EPSS Percentile
0th
MongoDB Schema Manager and MongoDB Atlas SQL ODBC Driver do not validate the scheme of the authorization and token endpoints returned by an OIDC issuer's discovery document. A user induced to connect to an uncontrolled MongoDB deployment using MONGODB-OIDC authentication may have an uncontrolled URI dispatched to their operating system's default protocol handler, potentially exposing credentials or, under certain conditions, resulting in code execution in the user's context.
| CWE | CWE-20 |
| Vendor | mongodb |
| Product | atlas sql odbc driver |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 12, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
MongoDB / Atlas SQL ODBC Driver
1.0.0 < 2.0.9
MongoDB / Schema Builder CLI
1.0.1 < 1.2.1