EUVD-2026-56908
GHSA-f96f-54rq-c385
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/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
Network-accessible with low complexity; authenticated low-privilege access required (PR:L); confidentiality-only impact with no scope change beyond the vulnerable collection.
Primary rating from Vendor (mongodb).
CVSS VectorVendor: mongodb
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/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
Lifecycle Timeline
3DescriptionCVE.org
An issue in MongoDB Server's Atlas Vector Search feature could allow an authenticated user with read access to one view to retrieve documents from a different, protected view over the same underlying collection. This is due to insufficient handling of certain user-supplied fields when constructing an internal request forwarded to the search process.
AnalysisAI
Atlas Vector Search in MongoDB Server exposes a horizontal authorization bypass allowing an authenticated low-privileged user to read documents from a view they are not authorized to access, crossing view-level access control boundaries within the same underlying collection. The flaw arises from MongoDB Server insufficiently validating user-supplied fields before forwarding internal requests to the search process, enabling the search backend to return documents outside the scope of the caller's authorized view. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires: (1) a valid MongoDB user account with at minimum low-privilege read access to at least one view defined over a target collection; (2) the Atlas Vector Search feature must be enabled and the user must have the ability to issue Vector Search queries; and (3) a separate, access-restricted view must exist over the same underlying collection containing documents the attacker is not permitted to read. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 7.1 (AV:N/AC:L/AT:N/PR:L/UI:N/VC:H) is consistent with the realistic threat profile: network-accessible with low complexity, requiring only authenticated low-privilege access, and producing high confidentiality impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An authenticated MongoDB user with read access to a low-sensitivity view crafts a Vector Search query containing manipulated user-supplied fields targeting the Atlas Vector Search endpoint. The internal request forwarded to the search process omits the view's filter boundary due to the CWE-807 flaw, causing the search backend to operate against the raw underlying collection. … |
| Remediation | Monitor the MongoDB JIRA ticket at https://jira.mongodb.org/browse/SERVER-129618 for a vendor-released patch and apply it immediately upon availability; no exact fixed version has been confirmed in available data. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, audit all MongoDB deployments using Atlas Vector Search to identify low-privileged users with access to this feature; cross-reference access logs from the past 7 days and immediately revoke Vector Search privileges for users without documented business justification. …
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