GHSA-qmqc-x3r4-6v39

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    GHSA-qmqc-x3r4-6v39

    Published: 15 May 2020Last Modified: 7 Aug 2026

    Summary: Polymorphic deserialization of malicious object in jackson-databind

    Details: A flaw was discovered in FasterXML jackson-databind in all versions before 2.9.10 and 2.10.0, where it would permit polymorphic deserialization of malicious objects using the xalan JNDI gadget when used in conjunction with polymorphic type handling methods such as `enableDefaultTyping()` or when @JsonTypeInfo is using `Id.CLASS` or `Id.MINIMAL_CLASS` or in any other way which ObjectMapper.readValue might instantiate objects from unsafe sources. An attacker could use this flaw to execute arbitrary code.

    Affected packages

    Package

    Name: com.fasterxml.jackson.core:jackson-databind

    Purl: pkg:maven/com.fasterxml.jackson.core/jackson-databind

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 2.9.0
    Fixed -2.9.10

    Affected versions

    2.9.0
    2.9.0.pr1
    2.9.0.pr2
    2.9.0.pr3
    2.9.0.pr4
    2.9.1
    2.9.2
    2.9.3
    2.9.4
    2.9.5
    2.9.6
    2.9.7
    2.9.8
    2.9.9
    2.9.9.1
    2.9.9.2
    2.9.9.3

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-qmqc-x3r4-6v39 | CVE-DB