Upstream information
Description
DefaultBaseTypeLimitingValidator is the PolymorphicTypeValidator applied automatically whenever @JsonTypeInfo is used without an explicitly configured custom validator. It denies polymorphic resolution only for a fixed set of "unsafe base types", and its isSafeSubType method returns true unconditionally for every base type outside that set. java.lang.Comparable was absent from the list despite being implemented by a very large fraction of JDK and application classes, comparable in breadth to java.io.Serializable, which is on the list for that reason. An application declaring an @JsonTypeInfo-annotated property or class with Comparable as its base type, and no custom PolymorphicTypeValidator, will accept a type identifier for essentially any class implementing Comparable. This yields an attacker-controlled object instantiation primitive; a demonstrated case constructs a java.io.File for an arbitrary attacker-chosen path, which becomes path-traversal-adjacent if the application subsequently calls path-sensitive methods on the value. No class implementing Comparable has been identified that yields code execution through deserialization alone. Global Default Typing via activateDefaultTyping is not affected, because that method structurally requires an explicit PolymorphicTypeValidator argument. This affects com.fasterxml.jackson.core:jackson-databind from 2.11.0 before 2.18.10, from 2.19.0 before 2.21.6, and from 2.22.0 before 2.22.2, and tools.jackson.core:jackson-databind from 3.0.0 before 3.1.6 and from 3.2.0 before 3.2.2. Users should upgrade to 2.18.10, 2.21.6, 2.22.2, 3.1.6, or 3.2.2.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
| CVSS detail | CNA (HeroDevs) | SUSE |
|---|---|---|
| Base Score | 5.6 | 5.6 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L |
| Attack Vector | Network | Network |
| Attack Complexity | High | High |
| Privileges Required | None | None |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | Low | Low |
| Integrity Impact | Low | Low |
| Availability Impact | Low | Low |
| CVSSv3 Version | 3.1 | 3.1 |
| CVSS detail | SUSE |
|---|---|
| Base Score | 6.3 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Attack Requirements | Present |
| Privileges Required | None |
| User Interaction | None |
| Vulnerable System Confidentiality Impact | Low |
| Vulnerable System Integrity Impact | Low |
| Vulnerable System Availability Impact | Low |
| Subsequent System Confidentiality Impact | None |
| Subsequent System Integrity Impact | None |
| Subsequent System Availability Impact | None |
| CVSSv4 Version | 4.0 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP7 | jackson-databind | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | jackson-databind | Affected |
| SUSE Linux Enterprise Server 15 SP7 | jackson-databind | Affected |
| SUSE Linux Enterprise Server 16.0 | jackson-databind | Affected |
| SUSE Linux Enterprise Server 16.1 | jackson-databind | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | jackson-databind | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | jackson-databind | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | jackson-databind | Affected |
| openSUSE Leap 16.0 | jackson-databind | Affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | jackson-databind | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | jackson-databind | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | jackson-databind | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | jackson-databind | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | jackson-databind | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | jackson-databind | Affected |
| SUSE Linux Enterprise Server 15 SP4 | jackson-databind | Affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | jackson-databind | Affected |
| SUSE Linux Enterprise Server 15 SP5 | jackson-databind | Affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | jackson-databind | Affected |
| SUSE Linux Enterprise Server 15 SP6 | jackson-databind | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | jackson-databind | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | jackson-databind | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | jackson-databind | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | jackson-databind | Affected |
| SUSE Manager Server Module 4.3 | jackson-databind | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Enterprise Storage 7 | jackson-databind | Affected |
| SUSE Enterprise Storage 7.1 | jackson-databind | Affected |
| SUSE Linux Enterprise Desktop 15 SP2 | jackson-databind | Affected |
| SUSE Linux Enterprise Desktop 15 SP3 | jackson-databind | Affected |
| SUSE Linux Enterprise Desktop 15 SP4 | jackson-databind | Affected |
| SUSE Linux Enterprise Desktop 15 SP5 | jackson-databind | Affected |
| SUSE Linux Enterprise Desktop 15 SP6 | jackson-databind | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | jackson-databind | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | jackson-databind | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | jackson-databind | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | jackson-databind | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | jackson-databind | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | jackson-databind | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | jackson-databind | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | jackson-databind | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | jackson-databind | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | jackson-databind | Affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP2 | jackson-databind | Affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP3 | jackson-databind | Affected |
| SUSE Linux Enterprise Real Time 15 SP2 | jackson-databind | Affected |
| SUSE Linux Enterprise Real Time 15 SP3 | jackson-databind | Affected |
| SUSE Linux Enterprise Real Time 15 SP4 | jackson-databind | Affected |
| SUSE Linux Enterprise Server 15 SP2 | jackson-databind | Affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | jackson-databind | Affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | jackson-databind | Affected |
| SUSE Linux Enterprise Server 15 SP3 | jackson-databind | Affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | jackson-databind | Affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | jackson-databind | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | jackson-databind | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | jackson-databind | Affected |
| SUSE Manager Proxy 4.1 | jackson-databind | Affected |
| SUSE Manager Proxy 4.2 | jackson-databind | Affected |
| SUSE Manager Proxy 4.3 | jackson-databind | Affected |
| SUSE Manager Proxy LTS 4.3 | jackson-databind | Affected |
| SUSE Manager Retail Branch Server 4.1 | jackson-databind | Affected |
| SUSE Manager Retail Branch Server 4.2 | jackson-databind | Affected |
| SUSE Manager Retail Branch Server 4.3 | jackson-databind | Affected |
| SUSE Manager Retail Branch Server LTS 4.3 | jackson-databind | Affected |
| SUSE Manager Server 4.1 | jackson-databind | Affected |
| SUSE Manager Server 4.2 | jackson-databind | Affected |
| SUSE Manager Server 4.3 | jackson-databind | Affected |
| SUSE Manager Server LTS 4.3 | jackson-databind | Affected |
| openSUSE Leap 15.3 | jackson-databind | Affected |
| openSUSE Leap 15.4 | jackson-databind | Affected |
| openSUSE Leap 15.5 | jackson-databind | Affected |
| openSUSE Leap 15.6 | jackson-databind | Affected |
| Container Status | ||
| suse/manager/5.0/x86_64/server suse/manager/5.0/x86_64/server-attestation suse/multi-linux-manager/5.1/x86_64/server suse/multi-linux-manager/5.1/x86_64/server-attestation suse/multi-linux-manager/5.2/x86_64/server suse/multi-linux-manager/5.2/x86_64/server-attestation | jackson-databind | Affected |
SUSE Timeline for this CVE
CVE page created: Tue Sep 1 22:08:19 2026CVE page last modified: Tue Sep 1 22:08:19 2026