Name: CVE-2026-4148: Use After Free
Creator: Rapid7
Published: 2026-03-17T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-4148, CVSS 8.8, EPSS 0.00042

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.

CVSS Details

CVSS 4.0 Base Score: 8.7 (HIGH)
CVSS 4.0 Vector: (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/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)
CVSS 3.1 Base Score: 8.8
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Mongodb	—	Upgrade MongoDB to version 7.0.31Upgrade MongoDB to version 8.0.20Upgrade to the latest version of MongoDBUpgrade MongoDB to version 8.2.6	Apr 27, 2026	Mar 17, 2026
Splunk	—	Upgrade Splunk Enterprise to version 9.3.13Upgrade Splunk Enterprise to version 10.4.0Upgrade Splunk Enterprise to version 10.0.7Upgrade Splunk Enterprise to version 9.4.12Upgrade Splunk Enterprise to version 10.2.4	Jul 30, 2026	Mar 17, 2026

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CVSS Details

Covered by Rapid7

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