EUVD-2026-56880
GHSA-q3g2-c227-xmvh
Severity by source
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/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
AC:H reflects the text index prerequisite as a condition beyond attacker control; PR:L captures the required read authentication; no confidentiality or integrity impact applies.
Primary rating from Vendor (mongodb).
CVSS VectorVendor: mongodb
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/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 query planner could allow an authenticated user with read-level privileges to cause the server process to terminate unexpectedly by submitting a specially formed query against a collection with a text index. This could result in a denial of service, affecting connected clients and in-flight operations.
AnalysisAI
MongoDB Server's query planner contains a null pointer dereference (CWE-476) that enables any authenticated user holding read-level privileges to crash the server process by submitting a specially crafted query against a collection with a text index. Affected branches span MongoDB 7.0.x, 8.0.x, and 8.3.x, with fixed releases available in 7.0.40, 8.0.29, and 8.3.8 respectively. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires three concrete conditions: (1) a valid MongoDB account with at minimum read-level privileges (PR:L) on the target database - unauthenticated access is insufficient; (2) the targeted collection must have a text index explicitly configured, which is a non-default deployment choice requiring deliberate administrator action; and (3) the attacker must be able to submit arbitrary queries to that collection. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 6.0 with vector AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N accurately captures the threat profile: network-reachable, low-privilege, but gated by a specific attack requirement (AT:P) - namely, a text index must be present on the targeted collection. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An authenticated MongoDB user - even one holding only a default read role granted to an application service account or end-user - submits a specially crafted query against a collection that has a text index defined. The malformed query triggers a null pointer dereference in the query planner, causing the mongod process to terminate unexpectedly and disconnecting all clients with in-flight operations lost. … |
| Remediation | Upgrade MongoDB Server to the patched release corresponding to your deployed branch: 8.3.8, 8.0.29, or 7.0.40, all of which are confirmed available from MongoDB per the vendor advisory and Jira ticket https://jira.mongodb.org/browse/SERVER-130266. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-476 – NULL Pointer Dereference
View allSame technique Null Pointer Dereference
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External POC / Exploit Code
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