CVE-2019-12086

HIGH
7.5
CVSS Score
Published: May 17, 2019 at 04:57 PM UTC
Updated: October 8, 2026 at 09:17 PM UTC
2 products affected across 2 vendorsDebian LinuxJackson Databind

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Severity
HIGH7.5
Exploit prediction
EPSS 22%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.0.0 ≤ v < 2.6.7.32.7.0 ≤ v < 2.7.9.62.8.0 ≤ v < 2.8.11.42.9.0 ≤ v < 2.9.9*
Affected range stops below 2.6.7.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.7.9.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.8.11.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.9.9, so it looks safe — our inference, not a vendor statement

References (41)

VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/109227
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:2858
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:2935
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:2936
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:2937
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:2938
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:2998

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-502

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