CVE•Published 2026-03-17•Modified 2026-04-10•1 article on news•5 live references•NVD data

CVE-2026-4148Mongodb · Mongodb

Vulnerability data via NVD (ingested)

CVSS v3.1

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS percentile

—

Weaknesses (CWE)

CWE-416Use After Free

Description

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.

Timeline

Published 2026-03-17

Modified 2026-04-10

External references

NVD MITRE Exploit-DB GitHub PoC VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag25,305 hosts

vuln:CVE-2026-4148

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Mongodb Mongodb"

All exposed Mongodb Mongodb instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Mongodb"

HTTP body or banner mentions "Mongodb" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-4148