CVE•Published 2026-05-13•Modified 2026-05-13•0 articles on news•5 live references•NVD data

CVE-2026-8199Mongodb · Mongodb

Vulnerability data via NVD (ingested)

CVSS v3.1

6.5

MEDIUM

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

EPSS percentile

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Weaknesses (CWE)

CWE-1325Improperly Controlled Sequential Memory Allocation

Description

An authenticated user can cause excess memory usage via bitwise match expression AST processing of $bitsAllSet, $bitsAnySet, $bitsAllClear, and $bitsAnyClear. This contributes to memory pressure and may lead to availability loss by OOM. This issue impacts MongoDB Server v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.

Timeline

Published 2026-05-13

Modified 2026-05-13

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 tag26,896 hosts

vuln:CVE-2026-8199

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-2026-8199