CVE•Published 2026-06-09•Modified 2026-07-23•1 article on news•4 live references•NVD data
CVE-2026-9753Mongodb · Mongodb
Vulnerability data via NVD (ingested)
CVSS v3.1
8.1
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
EPSS percentile
22
Exploit Prediction Scoring System · top 78% of all CVEs
Description
The $_internalApplyOplogUpdate aggregation pipeline stage can be used to execute a document diff containing a malformed binary diff to return memory out-of-bounds or crash the server. $_internalApplyOplogUpdate can be executed by any authenticated user with access to the aggregate command.
Timeline
Published 2026-06-09
Modified 2026-07-23
External references
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 tag48,700 hosts
vuln:CVE-2026-9753Hosts 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-2026-9753Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-9753Censys host search filtered to this CVE id.
grep.app
CVE-2026-9753Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-9753GitHub code search for direct mentions.
Google dork
"CVE-2026-9753" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.