Insufficient OIDC endpoint validation could invoke unintended local protocol handlers
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| MongoDB | Atlas SQL ODBC Driver | 1.0.0 to before 2.0.9 | 2.0.9 | Patch available | CNA |
| MongoDB | Schema Builder CLI | 1.0.1 to before 1.2.1 | 1.2.1 | Patch available | CNA |
Remediation
- Fix · CNA Atlas SQL ODBC Driver (MongoDB) Fixed in 2.0.9
- Fix · CNA Schema Builder CLI (MongoDB) Fixed in 1.2.1
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
MongoDB Schema Builder CLI 1.2.1
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-15877 Insufficient redaction of sensitive configuration values in diagnostic output of MongoDB SQL Schema Builder CLIPriority LOW 29
Timeline
- 2026-10-02 Threatist record created from CVE-2026-19503
- 2026-10-03 Alias added: GHSA-gxxm-9rmv-h4mp
References
Sources
- CVE-2026-19503 · CVE Program
- CVE-2026-19503 · NVD
- FIRST EPSS
- GHSA-gxxm-9rmv-h4mp · GitHub Advisory Database · CC BY 4.0
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