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| CVE | CVSS | EPSS | Vendor, product | Description | Modified |
|---|---|---|---|---|---|
| CVE-2019-12384exploit ×2 | 5.9 medium | 45.0% | fasterxml, debian, jackson-databind, debian_linux, enterprise_linux | FasterXML jackson-databind 2.x before 2.9.9.1 might allow attackers to have a variety of impacts by leveraging failure to block the logback-core class from polymorphic deserialization. Depending on the classpath content, remote code execution may be possible. | 8 Oct |
| CVE-2017-7525exploit ×5 | 9.8 critical | 38.0% | fasterxml, debian, jackson-databind, debian_linux, oncommand_balance | A deserialization flaw was discovered in the jackson-databind, versions before 2.6.7.1, 2.7.9.1 and 2.8.9, which could allow an unauthenticated user to perform code execution by sending the maliciously crafted input to the readValue method of the ObjectMapper. | 8 Oct |
| CVE-2020-8840exploit ×6 | 9.8 critical | 27.0% | fasterxml, debian, jackson-databind, debian_linux, oncommand_api_services | FasterXML jackson-databind 2.0.0 through 2.9.10.2 lacks certain xbean-reflect/JNDI blocking, as demonstrated by org.apache.xbean.propertyeditor.JndiConverter. | 8 Oct |
| CVE-2019-12086exploit ×2 | 7.5 high | 22.0% | fasterxml, debian, jackson-databind, debian_linux | 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. | 8 Oct |
| CVE-2018-7489exploit | 9.8 critical | 20.0% | fasterxml, debian, jackson-databind, debian_linux, communications_billing_and_revenue_management | FasterXML jackson-databind before 2.7.9.3, 2.8.x before 2.8.11.1 and 2.9.x before 2.9.5 allows unauthenticated remote code execution because of an incomplete fix for the CVE-2017-7525 deserialization flaw. This is exploitable by sending maliciously crafted JSON input to the readValue method of the ObjectMapper, bypassing a blacklist that is ineffective if the c3p0 libraries are available in the classpath. | 15 Oct |
| CVE-2020-9548exploit | 9.8 critical | 19.0% | fasterxml, netapp, jackson-databind, active_iq_unified_manager, debian_linux | FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to br.com.anteros.dbcp.AnterosDBCPConfig (aka anteros-core). | 8 Oct |
| CVE-2019-14540exploit | 9.8 critical | 11.0% | fasterxml, netapp, jackson-databind, oncommand_api_services, oncommand_workflow_automation | A Polymorphic Typing issue was discovered in FasterXML jackson-databind before 2.9.10. It is related to com.zaxxer.hikari.HikariConfig. | 8 Oct |
| CVE-2019-14439exploit | 7.5 high | 11.0% | fasterxml, debian, jackson-databind, debian_linux, fedora | A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.x before 2.9.9.2. This occurs when Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has the logback jar in the classpath. | 8 Oct |
| CVE-2020-36188exploit | 8.1 high | 9.0% | fasterxml, netapp, jackson-databind, cloud_backup, service_level_manager | FasterXML jackson-databind 2.x before 2.9.10.8 mishandles the interaction between serialization gadgets and typing, related to com.newrelic.agent.deps.ch.qos.logback.core.db.JNDIConnectionSource. | 8 Oct |
| CVE-2020-24616exploit | 8.1 high | 8.0% | fasterxml, netapp, jackson-databind, active_iq_unified_manager, agile_product_lifecycle_management | FasterXML jackson-databind 2.x before 2.9.10.6 mishandles the interaction between serialization gadgets and typing, related to br.com.anteros.dbcp.AnterosDBCPDataSource (aka Anteros-DBCP). | 8 Oct |
| CVE-2020-24750exploit | 8.1 high | 7.0% | fasterxml, oracle, jackson-databind, agile_product_lifecycle_management, application_testing_suite | FasterXML jackson-databind 2.x before 2.9.10.6 mishandles the interaction between serialization gadgets and typing, related to com.pastdev.httpcomponents.configuration.JndiConfiguration. | 8 Oct |
| CVE-2020-14195exploit | 8.1 high | 5.0% | fasterxml, netapp, jackson-databind, active_iq_unified_manager, steelstore_cloud_integrated_storage | FasterXML jackson-databind 2.x before 2.9.10.5 mishandles the interaction between serialization gadgets and typing, related to org.jsecurity.realm.jndi.JndiRealmFactory (aka org.jsecurity). | 8 Oct |
| CVE-2026-54512exploit ×2 | 8.1 high | 1.0% | fasterxml, jackson-databind | jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.10.0 until 2.18.8, 2.21.4, and 3.1.4, jackson-databind's PolymorphicTypeValidator (PTV) is the primary safety mechanism guarding polymorphic deserialization. When polymorphic typing is enabled and a type identifier contains generic parameters (i.e. the type ID string contains <), DatabindContext._resolveAndValidateGeneric() validates only the raw container class name (the substring before <) against the configured PTV. If the container type is approved, the method parses the full canonical type string via TypeFactory.constructFromCanonical() and returns the fully parameterized type without ever validating the nested type arguments against the PTV. The nested type arguments are then resolved, instantiated, and populated as beans during deserialization. An attacker who controls the type ID can therefore place a denied class as a generic type parameter of an allowed container — for example java.util.ArrayList<com.evil.Gadget> when only java.util.ArrayList is allow-listed. The container passes the PTV check; com.evil.Gadget is loaded via Class.forName(name, true, loader), instantiated, and its properties are set from attacker-controlled JSON. This completely bypasses an explicitly configured PTV allow-list. This vulnerability is fixed in 2.18.8, 2.21.4, and 3.1.4. | Sun 25 Oct |
| CVE-2026-54515exploit | 5.3 medium | 0.00% | fasterxml, jackson-databind | jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.8.0 until 2.18.9, 2.21.5, and 3.1.4, in BeanDeserializerBase.createContextual(), per-property @JsonIgnoreProperties exclusions are applied by _handleByNameInclusion(), producing a contextual deserializer whose BeanPropertyMap has the ignored properties removed. The subsequent per-property case-insensitivity block (triggered by @JsonFormat(ACCEPT_CASE_INSENSITIVE_PROPERTIES)) rebuilds from this._beanProperties (the original, unfiltered map) instead of contextual._beanProperties, then overwrites the filtered map — restoring every property _handleByNameInclusion had just removed. The ignored property becomes writable again. This vulnerability is fixed in 2.18.9, 2.21.5, and 3.1.4. | Sun 25 Oct |
| CVE-2020-25649 | 7.5 high | 18.0% | fasterxml, netapp, jackson-databind, oncommand_api_services, oncommand_workflow_automation | A flaw was found in FasterXML Jackson Databind, where it did not have entity expansion secured properly. This flaw allows vulnerability to XML external entity (XXE) attacks. The highest threat from this vulnerability is data integrity. | 8 Oct |
| CVE-2018-14718 | 9.8 critical | 13.0% | fasterxml, debian, jackson-databind, debian_linux, banking_platform | FasterXML jackson-databind 2.x before 2.9.7 might allow remote attackers to execute arbitrary code by leveraging failure to block the slf4j-ext class from polymorphic deserialization. | 8 Oct |
| CVE-2018-19362 | 9.8 critical | 11.0% | fasterxml, debian, jackson-databind, debian_linux, business_process_management_suite | FasterXML jackson-databind 2.x before 2.9.8 might allow attackers to have unspecified impact by leveraging failure to block the jboss-common-core class from polymorphic deserialization. | 15 Oct |
| CVE-2018-19361 | 9.8 critical | 11.0% | fasterxml, debian, jackson-databind, debian_linux, business_process_management_suite | FasterXML jackson-databind 2.x before 2.9.8 might allow attackers to have unspecified impact by leveraging failure to block the openjpa class from polymorphic deserialization. | 15 Oct |
| CVE-2018-19360 | 9.8 critical | 11.0% | fasterxml, debian, jackson-databind, debian_linux, business_process_management_suite | FasterXML jackson-databind 2.x before 2.9.8 might allow attackers to have unspecified impact by leveraging failure to block the axis2-transport-jms class from polymorphic deserialization. | 15 Oct |
| CVE-2018-14721 | 10.0 critical | 10.0% | fasterxml, debian, jackson-databind, debian_linux, banking_platform | FasterXML jackson-databind 2.x before 2.9.7 might allow remote attackers to conduct server-side request forgery (SSRF) attacks by leveraging failure to block the axis2-jaxws class from polymorphic deserialization. | 15 Oct |
| CVE-2018-14719 | 9.8 critical | 10.0% | fasterxml, debian, jackson-databind, debian_linux, banking_platform | FasterXML jackson-databind 2.x before 2.9.7 might allow remote attackers to execute arbitrary code by leveraging failure to block the blaze-ds-opt and blaze-ds-core classes from polymorphic deserialization. | 8 Oct |
| CVE-2019-20330 | 9.8 critical | 9.0% | fasterxml, oracle, jackson-databind, banking_platform, communications_billing_and_revenue_management | FasterXML jackson-databind 2.x before 2.9.10.2 lacks certain net.sf.ehcache blocking. | 8 Oct |
| CVE-2020-14060 | 8.1 high | 9.0% | fasterxml, netapp, jackson-databind, active_iq_unified_manager, steelstore_cloud_integrated_storage | FasterXML jackson-databind 2.x before 2.9.10.5 mishandles the interaction between serialization gadgets and typing, related to oadd.org.apache.xalan.lib.sql.JNDIConnectionPool (aka apache/drill). | 8 Oct |
| CVE-2018-12023 | 7.5 high | 9.0% | fasterxml, debian, jackson-databind, debian_linux, fedora | An issue was discovered in FasterXML jackson-databind prior to 2.7.9.4, 2.8.11.2, and 2.9.6. When Default Typing is enabled (either globally or for a specific property), the service has the Oracle JDBC jar in the classpath, and an attacker can provide an LDAP service to access, it is possible to make the service execute a malicious payload. | 15 Oct |
| CVE-2018-14720 | 9.8 critical | 8.0% | fasterxml, debian, jackson-databind, debian_linux, banking_platform | FasterXML jackson-databind 2.x before 2.9.7 might allow attackers to conduct external XML entity (XXE) attacks by leveraging failure to block unspecified JDK classes from polymorphic deserialization. | 15 Oct |
| CVE-2017-15095 | 9.8 critical | 8.0% | fasterxml, debian, jackson-databind, debian_linux, openshift_container_platform | A deserialization flaw was discovered in the jackson-databind in versions before 2.8.10 and 2.9.1, which could allow an unauthenticated user to perform code execution by sending the maliciously crafted input to the readValue method of the ObjectMapper. This issue extends the previous flaw CVE-2017-7525 by blacklisting more classes that could be used maliciously. | 8 Oct |
| CVE-2019-14379 | 9.8 critical | 8.0% | fasterxml, debian, jackson-databind, debian_linux, active_iq_unified_manager | SubTypeValidator.java in FasterXML jackson-databind before 2.9.9.2 mishandles default typing when ehcache is used (because of net.sf.ehcache.transaction.manager.DefaultTransactionManagerLookup), leading to remote code execution. | 8 Oct |
| CVE-2020-35491 | 8.1 high | 8.0% | fasterxml, netapp, jackson-databind, service_level_manager, debian_linux | FasterXML jackson-databind 2.x before 2.9.10.8 mishandles the interaction between serialization gadgets and typing, related to org.apache.commons.dbcp2.datasources.SharedPoolDataSource. | 8 Oct |
| CVE-2020-14062 | 8.1 high | 8.0% | fasterxml, netapp, jackson-databind, active_iq_unified_manager, steelstore_cloud_integrated_storage | FasterXML jackson-databind 2.x before 2.9.10.5 mishandles the interaction between serialization gadgets and typing, related to com.sun.org.apache.xalan.internal.lib.sql.JNDIConnectionPool (aka xalan2). | 8 Oct |
| CVE-2018-5968 | 8.1 high | 7.0% | fasterxml, debian, jackson-databind, debian_linux, openshift_container_platform | FasterXML jackson-databind through 2.8.11 and 2.9.x through 2.9.3 allows unauthenticated remote code execution because of an incomplete fix for the CVE-2017-7525 and CVE-2017-17485 deserialization flaws. This is exploitable via two different gadgets that bypass a blacklist. | 8 Oct |
| CVE-2018-12022 | 7.5 high | 7.0% | fasterxml, debian, jackson-databind, debian_linux, fedora | An issue was discovered in FasterXML jackson-databind prior to 2.7.9.4, 2.8.11.2, and 2.9.6. When Default Typing is enabled (either globally or for a specific property), the service has the Jodd-db jar (for database access for the Jodd framework) in the classpath, and an attacker can provide an LDAP service to access, it is possible to make the service execute a malicious payload. | 8 Oct |
| CVE-2019-16942 | 9.8 critical | 6.0% | fasterxml, debian, jackson-databind, debian_linux, fedora | A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.0.0 through 2.9.10. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has the commons-dbcp (1.4) jar in the classpath, and an attacker can find an RMI service endpoint to access, it is possible to make the service execute a malicious payload. This issue exists because of org.apache.commons.dbcp.datasources.SharedPoolDataSource and org.apache.commons.dbcp.datasources.PerUserPoolDataSource mishandling. | 8 Oct |
| CVE-2019-14892 | 9.8 critical | 6.0% | fasterxml, redhat, jackson-databind, decision_manager, jboss_data_grid | A flaw was discovered in jackson-databind in versions before 2.9.10, 2.8.11.5 and 2.6.7.3, where it would permit polymorphic deserialization of a malicious object using commons-configuration 1 and 2 JNDI classes. An attacker could use this flaw to execute arbitrary code. | 8 Oct |
| CVE-2018-11307 | 9.8 critical | 6.0% | fasterxml, redhat, jackson-databind, openshift_container_platform, clusterware | An issue was discovered in FasterXML jackson-databind 2.0.0 through 2.9.5. Use of Jackson default typing along with a gadget class from iBatis allows exfiltration of content. Fixed in 2.7.9.4, 2.8.11.2, and 2.9.6. | 8 Oct |
| CVE-2020-35490 | 8.1 high | 6.0% | fasterxml, netapp, jackson-databind, service_level_manager, debian_linux | FasterXML jackson-databind 2.x before 2.9.10.8 mishandles the interaction between serialization gadgets and typing, related to org.apache.commons.dbcp2.datasources.PerUserPoolDataSource. | 8 Oct |
| CVE-2020-11620 | 8.1 high | 6.0% | fasterxml, debian, jackson-databind, debian_linux, active_iq_unified_manager | FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to org.apache.commons.jelly.impl.Embedded (aka commons-jelly). | 8 Oct |
| CVE-2019-17531 | 9.8 critical | 5.0% | fasterxml, debian, jackson-databind, debian_linux, jboss_enterprise_application_platform | A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.0.0 through 2.9.10. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has the apache-log4j-extra (version 1.2.x) jar in the classpath, and an attacker can provide a JNDI service to access, it is possible to make the service execute a malicious payload. | 8 Oct |
| CVE-2019-16335 | 9.8 critical | 5.0% | fasterxml, fedoraproject, jackson-databind, fedora, debian_linux | A Polymorphic Typing issue was discovered in FasterXML jackson-databind before 2.9.10. It is related to com.zaxxer.hikari.HikariDataSource. This is a different vulnerability than CVE-2019-14540. | 8 Oct |
| CVE-2020-36183 | 8.1 high | 5.0% | fasterxml, netapp, jackson-databind, cloud_backup, service_level_manager | FasterXML jackson-databind 2.x before 2.9.10.8 mishandles the interaction between serialization gadgets and typing, related to org.docx4j.org.apache.xalan.lib.sql.JNDIConnectionPool. | 8 Oct |
| CVE-2019-14893 | 9.8 critical | 4.0% | fasterxml, netapp, jackson-databind, oncommand_api_services, steelstore_cloud_integrated_storage | 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. | 8 Oct |
| CVE-2020-36189 | 8.1 high | 4.0% | fasterxml, netapp, jackson-databind, cloud_backup, service_level_manager | FasterXML jackson-databind 2.x before 2.9.10.8 mishandles the interaction between serialization gadgets and typing, related to com.newrelic.agent.deps.ch.qos.logback.core.db.DriverManagerConnectionSource. | 8 Oct |
| CVE-2020-36187 | 8.1 high | 4.0% | fasterxml, netapp, jackson-databind, cloud_backup, service_level_manager | FasterXML jackson-databind 2.x before 2.9.10.8 mishandles the interaction between serialization gadgets and typing, related to org.apache.tomcat.dbcp.dbcp.datasources.SharedPoolDataSource. | 8 Oct |
| CVE-2020-36186 | 8.1 high | 4.0% | fasterxml, netapp, jackson-databind, cloud_backup, service_level_manager | FasterXML jackson-databind 2.x before 2.9.10.8 mishandles the interaction between serialization gadgets and typing, related to org.apache.tomcat.dbcp.dbcp.datasources.PerUserPoolDataSource. | 8 Oct |
| CVE-2020-36185 | 8.1 high | 4.0% | fasterxml, netapp, jackson-databind, cloud_backup, service_level_manager | FasterXML jackson-databind 2.x before 2.9.10.8 mishandles the interaction between serialization gadgets and typing, related to org.apache.tomcat.dbcp.dbcp2.datasources.SharedPoolDataSource. | 8 Oct |
| CVE-2020-11619 | 8.1 high | 4.0% | fasterxml, debian, jackson-databind, debian_linux, active_iq_unified_manager | FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to org.springframework.aop.config.MethodLocatingFactoryBean (aka spring-aop). | 8 Oct |
| CVE-2026-54513 | 8.1 high | 1.0% | fasterxml, jackson-databind | jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.10.0 until 2.18.8, 2.21.4, and 3.1.4, BasicPolymorphicTypeValidator.Builder.allowIfSubTypeIsArray() allowlists any array type based only on clazz.isArray(), without validating the array's component (element) type against the configured allowlist. A PTV built with allowIfSubTypeIsArray() plus an explicit concrete-type allowlist therefore still permits EvilType[] even though EvilType is not allowlisted. When Jackson deserializes the elements and no per-element type IDs are present, it instantiates the component type directly with no further PTV check, bypassing the allowlist. This vulnerability is fixed in 2.18.8, 2.21.4, and 3.1.4. | Sun 25 Oct |
| CVE-2026-68498 | 7.5 high | 1.0% | no CPE yet | StreamReadConstraints.maxNameLength (default 50,000 characters) is intended to bound how much memory a single JSON Object property name can consume while being parsed, independently of the much larger maxStringLength (default 100,000,000 characters) that bounds ordinary string values. For parsers built over character input — Reader, String or char[] sources, all served by ReaderBasedJsonParser — that bound is not applied while the name is being accumulated. The code path instead re-uses the string-value length check, which is roughly 2000x larger by default. In the character-input slow path, ReaderBasedJsonParser._parseName2() accumulates the name into the TextBuffer and, when a segment fills, calls TextBuffer.finishCurrentSegment(), which validates only maxStringLength. The correct check, StreamReadConstraints.validateNameLength(int), is reached afterwards in CharsToNameCanonicalizer.findSymbol(), once the entire name has been scanned to its closing quote. By that point the full name — up to maxStringLength characters — has already been buffered in memory. A remote attacker who can have a single sufficiently long JSON Object property name parsed through this path can force allocation on the order of 100,000,000 characters (approximately 200 MB, with segment bookkeeping pushing real peak usage higher) before any StreamConstraintsException is thrown, instead of the approximately 50,000-character (about 100 KB) bound the API promises. Repeating this across concurrent requests can exhaust the heap and crash the process. No authentication or user interaction is required. Because StreamReadConstraints.maxDocumentLength is disabled by default (-1), nothing else bounds the token first, so the issue is exploitable under default configuration. Byte-input parsers are not affected: UTF8StreamJsonParser, UTF8DataInputJsonParser and the non-blocking (async) parsers re-validate maxNameLength on every growth of the name-decode buffer via ParserBase._growNameDecodeBuffer(), rejecting an oversized name after allocating only tens of kilobytes. Applications are exposed when untrusted JSON is parsed from a String, Reader or char[] — for example an HTTP request body already read into a String — rather than from raw UTF-8 bytes. This issue affects com.fasterxml.jackson.core:jackson-core from 2.16.0 and tools.jackson.core:jackson-core from 3.0.0. Releases before 2.16.0 are not affected, because StreamReadConstraints.maxNameLength was first introduced in jackson-core 2.16.0. | 20 Oct |
| CVE-2026-34480 | 6.9 medium | 1.0% | apache, log4j | Apache Log4j Core's XmlLayout https://logging.apache.org/log4j/2.x/manual/layouts.html#XmlLayout , in versions up to and including 2.25.3, fails to sanitize characters forbidden by the XML 1.0 specification https://www.w3.org/TR/xml/#charsets producing invalid XML output whenever a log message or MDC value contains such characters. The impact depends on the StAX implementation in use: * JRE built-in StAX: Forbidden characters are silently written to the output, producing malformed XML. Conforming parsers must reject such documents with a fatal error, which may cause downstream log-processing systems to drop the affected records. * Alternative StAX implementations (e.g., Woodstox https://github.com/FasterXML/woodstox , a transitive dependency of the Jackson XML Dataformat module): An exception is thrown during the logging call, and the log event is never delivered to its intended appender, only to Log4j's internal status logger. Users are advised to upgrade to Apache Log4j Core 2.25.4, which corrects this issue by sanitizing forbidden characters before XML output. | Mon 26 Oct |
| CVE-2026-50193 | 6.3 medium | 1.0% | fasterxml, jackson-databind | jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.13.0 until 2.14.0, a potential Denial-of-Service exists when attacker sends deeply nested JSON if (and only if) the service reads deeply nested (1000s of levels) JSON as JsonNode (ObjectMapper.readTree()) and writes out same (or modifided) node using JsonNode.toString(). This can consume significant amount of resources with concurrent relatively small requests (1000 nested arrays is 2kB). This vulnerability is fixed in 2.14.0. | Sun 25 Oct |
| CVE-2026-110879 | 9.8 critical | — | no CPE yet | jackson-databind validates the outer class of a class-name type ID but accepts attacker-selected classes inside its generic arguments, even when those classes violate the declared type or would be rejected as direct type IDs. This bypasses the generic-argument validation added for CVE-2026-54512 (GHSA-j3rv-43j4-c7qm), of which this is an incomplete fix. DatabindContext._resolveAndValidateGeneric() checks the outer class against the declared base type and then passes each argument from the type ID to _validateTypeParameter(), which validates the argument against the outer base type rather than enforcing its corresponding declared generic binding. It also invokes validators with arguments that have not passed the subtype check those validators expect. Under the default DefaultBaseTypeLimitingValidator this accepts an unrelated class inside a generic subtype even when the same class is rejected as a direct type ID. Where an allowIfBaseType(...) rule approves the outer type, Jackson substitutes LaissezFaireSubTypeValidator, so the configured validator no longer restricts the embedded arguments. The element type of a plain array type ID such as [Lpkg.Gadget; is likewise left unvalidated once the array's base type is approved. Affected paths include annotation-based class-name polymorphism with a default Jackson 3.x JsonMapper, configured default typing in both Jackson 2.x and 3.x, and integrations that expose that default typing. The default-validator case requires no application-authored validator: with @JsonTypeInfo(use = Id.CLASS), a direct gadget type ID is rejected as "Not a subtype", while a type ID naming a generic wrapper around the same gadget is accepted and deserialized, including attacker-supplied bean properties. Where class-name default typing permits Map, a property declared as Map<String,String> accepts HashMap<FileSystemXmlApplicationContext,String>; map-key discovery then passes the attacker-controlled JSON property name to the selected class's one-string constructor. With Spring on the classpath and attacker-controlled XML the application can load, that constructor loads the XML and invokes ProcessBuilder.start() under the application account, giving arbitrary command execution. This issue affects com.fasterxml.jackson.core:jackson-databind from 2.10.0 and tools.jackson.core:jackson-databind from 3.0.0. Releases before 2.10.0 are not affected, because PolymorphicTypeValidator was introduced in jackson-databind 2.10.0. | 22 h ago |
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EPSS scores: 2026-10-27. NVD cursor: 2026-10-28 21:20. The News page shows only notable CVEs (KEV, your stack, new criticals, EPSS over 50%, or active exploitation per SSVC); this table has all of them.