Home/CVE/A use-after-free vulnerability can be triggered in sharded clusters by an authenticated user with the read role who issu
CVE

CVE-2026-4148

A use-after-free vulnerability can be triggered in sharded clusters by an authenticated user with the read role who issu

A use-after-free vulnerability can be triggered in sharded clusters by an authenticated user with the read role who issues a specially crafted $lookup or $graphLookup aggregation pipeline.

HIGH · CVSS 8.8 EPSS 0.0007
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-416Use After Free
▤

Affected Products & Versions

4
mongodb>= 7.0.0 and < 7.0.31
mongodb>= 8.0.0 and < 8.0.20
mongodb>= 8.2.0 and < 8.2.6
mongodball versions
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · cna@mongodb.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD17 Mar 2026 · 04:16 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://jira.mongodb.org/browse/SERVER-119319PatchVendor Advisory
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