CVE•Published 2019-05-17•Modified 2026-10-08•1 article on news•5 live references•NVD data

CVE-2019-12086Fasterxml · Jackson-databind

Vulnerability data via NVD (ingested)

CVSS v3.1

7.5

HIGH

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

EPSS percentile

Exploit Prediction Scoring System · top 2% of all CVEs

Weaknesses (CWE)

CWE-502Deserialization of Untrusted Data

Description

A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.x before 2.9.9. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint, the service has the mysql-connector-java jar (8.0.14 or earlier) in the classpath, and an attacker can host a crafted MySQL server reachable by the victim, an attacker can send a crafted JSON message that allows them to read arbitrary local files on the server. This occurs because of missing com.mysql.cj.jdbc.admin.MiniAdmin validation.

Timeline

Published 2019-05-17

Modified 2026-10-08

External references

NVD MITRE Exploit-DB trickest/cve 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 tag0 hosts

vuln:CVE-2019-12086

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Fasterxml Jackson-databind"

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

Shodan · banner/body mention

http.html:"Jackson-databind"

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

More intel sources (5)

Shodan report

vuln:CVE-2019-12086