CVE-2026-86730 Craft CMS 5.0.0-RC1 before 5.10.12 Behavior Injection RCE

Craft CMS versions before 5.10.12 fail to properly cleanse string-typed field-layout elements, allowing authenticated control-panel users to inject Yii2 behavior attachments and event handlers. Attackers can post field-layout tab elements as JSON strings to bypass cleanse validation, then trigger...

CVE-2026-86730 Craft CMS 5.0.0-RC1 before 5.10.12 Behavior Injection RCE

Craft CMS versions before 5.10.12 fail to properly cleanse string-typed field-layout elements, allowing authenticated control-panel users to inject Yii2 behavior attachments and event handlers. Attackers can post field-layout tab elements as JSON strings to bypass cleanse validation, then trigger...

PT-2026-88164

In Stapler 2107.v8dfcb e8ed317 and earlier, except 2088.2093.vd7c3e58008a 6, included in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, Stapler does not restrict the types of objects that can be instantiated via form data binding to those compatible with the expected field type, allowing...

CVE-2026-84647

A flaw was found in Stapler, a web framework included in Jenkins. This vulnerability allows an attacker with 'Overall/Read' permission to instantiate objects related to configuration through form data binding. The system does not properly restrict the types of objects that can be created, enablin...

CVE-2026-84647

In Stapler 2107.v8dfcbe8ed317 and earlier, except 2088.2093.vd7c3e58008a6, included in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, Stapler does not restrict the types of objects that can be instantiated via form data binding to those compatible with the expected field type, allowing...

CVE-2026-84647

In Stapler 2107.v8dfcbe8ed317 and earlier, except 2088.2093.vd7c3e58008a6, included in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, Stapler does not restrict the types of objects that can be instantiated via form data binding to those compatible with the expected field type, allowing...

EUVD-2026-70113

In Stapler 2107.v8dfcbe8ed317 and earlier, except 2088.2093.vd7c3e58008a6, included in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, Stapler does not restrict the types of objects that can be instantiated via form data binding to those compatible with the expected field type, allowing...

CVE-2026-84647

Stapler versions 2107.v8dfcb_e8ed317 and earlier (except 2088.2093.vd7c3e58008a_6), which are included in Jenkins 2.579 and earlier, and LTS 2.568.2 and earlier, are vulnerable to an object instantiation flaw. The root cause is that Stapler fails to restrict the types of objects instantiated via ...

CVE-2026-84647

In Stapler 2107.v8dfcbe8ed317 and earlier, except 2088.2093.vd7c3e58008a6, included in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, Stapler does not restrict the types of objects that can be instantiated via form data binding to those compatible with the expected field type, allowing...

SUSE CVE-2026-83557

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...

Linux Distros Unpatched Vulnerability : CVE-2026-83557

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - DefaultBaseTypeLimitingValidator is the PolymorphicTypeValidator applied automatically whenever @JsonTypeInfo is used without an explicitly configured custom...

PT-2026-84770

In Stapler 2107.v8dfcb e8ed317 and earlier, except 2088.2093.vd7c3e58008a 6, included in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, Stapler does not restrict the types of objects that can be instantiated via form data binding to those compatible with the expected field type, allowing...

Instantiation of any types related to configuration

Jenkins uses the https://github.com/jenkinsci/staplerStapler web framework for HTTP request handling. Stapler's form data binding instantiates configuration objects of types specified in form submissions. In Stapler 2107.v8dfcbe8ed317 and earlier, except 2088.2093.vd7c3e58008a6, included in Jenki...

CVE-2026-83557

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...

DEBIAN-CVE-2026-83557

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...

CVE-2026-83557 jackson-databind omits java.lang.Comparable from DefaultBaseTypeLimitingValidator's unsafe base types

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...

CVE-2026-83557 jackson-databind omits java.lang.Comparable from DefaultBaseTypeLimitingValidator's unsafe base types

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...

CVE-2026-83557

jackson-databind ships a default PolymorphicTypeValidator (DefaultBaseTypeLimitingValidator) used automatically when @JsonTypeInfo is present without a custom validator. The flaw: java.lang.Comparable was omitted from its "unsafe base types" deny-list, so isSafeSubType returned true unconditional...

CVE-2026-83557 jackson-databind omits java.lang.Comparable from DefaultBaseTypeLimitingValidator's unsafe base types

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...

CVE-2026-83557

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...