EUVD-2026-67779
GHSA-67f8-9r65-xc46
Severity by source
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
PR:H reflects required schema-validator write privileges; AC:H reflects the non-default deployment configuration and DDL replay dependency; S:C because injected SQL executes on a downstream SQL server outside the BI Connector's trust boundary.
Primary rating from Vendor (mongodb).
CVSS VectorVendor: mongodb
Lifecycle Timeline
3DescriptionCVE.org
In MongoDB Connector for BI, the description text of a collection's JSON schema validator is incorporated into the comment text of the DDL returned by SHOW CREATE statements without complete escaping of backslash characters. A user with permission to modify a collection's schema validator, in deployments configured to build their SQL schema from those validators, can cause additional SQL text to be embedded in that generated output. If an operator or automated tool later replays that generated statement against a SQL server, the additional text is executed with the privileges of that session.
AnalysisAI
SQL injection in MongoDB Connector for BI allows a high-privilege user to embed arbitrary SQL in generated DDL output by crafting a collection JSON schema validator description containing unescaped backslash sequences. All versions covered by cpe:2.3:a:mongodb:bi_connector:*:*:*:*:*:*:*:* in deployments that build SQL schemas from collection validators are affected. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires three concrete, simultaneous conditions: (1) the attacker holds high-privilege access sufficient to modify a MongoDB collection's JSON schema validator - typically a database administrator or equivalent role (PR:H in the CVSS 4.0 vector); (2) the target BI Connector deployment is explicitly configured to build its SQL schema from collection validators, which is not the default mode; and (3) an operator or automated tool actively replays the generated SHOW CREATE DDL output against a SQL server without sanitizing comment fields (UI:A). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 5.7 (Medium) accurately reflects a constrained but credible threat: AV:N establishes network reachability for the initial privilege step, but AT:P (specific attack requirements present) and PR:H (high privileges required) limit the attacker pool to trusted insiders or accounts compromised at the database-administrator level. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Consult the MongoDB BI Connector release notes at https://www.mongodb.com/docs/bi-connector/current/release-notes/ to identify the patched release and upgrade as soon as possible; no exact fix version is independently confirmed from available input data, so the release notes page should be checked directly. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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