cve-2023-20768

Samsung Galaxy M32 における CVE-2023-20768 — 到達可能性の調査 概要. CVE-2023-20768 は、MediaTek の ION アロケータにおける型混乱 CWE-843 です。私は、2022年7月のファームウェアを実行している Samsung SM-M325F Galaxy M32, Helio G80 で、これが実際に悪用可能かどうかを確認しました。脆弱なコードは存在し、非特権プロセスからトリガーしたときにこのデバイス上で実行されることを実証しました。武器化には至りませんでした。ioctl...

CVE-2026-91776

A flaw was found in jackson-databind. A remote attacker can exploit this vulnerability by repeatedly supplying distinct, unrecognized type identifiers to an application configured with name-based polymorphism and a fallback deserializer. This action causes the TypeDeserializerBase component to...

jackson-databind retains every unknown raw type ID

Summary With @JsonTypeInfouse = Id.NAME, defaultImpl = ..., every distinct unknown raw type ID selects the same fallback deserializer but is retained as a separate key in TypeDeserializerBase.deserializers. An attacker who can repeatedly supply new unknown type IDs can grow this process-lifetime...

EUVD-2026-85002

jackson-databind retains every unknown raw type ID...

SUSE CVE-2026-91776

TypeDeserializerBase.findDeserializer in FasterXML jackson-databind caches the resolved deserializer under the raw, attacker-supplied type ID. When name-based polymorphism is configured with a fallback, for example @JsonTypeInfouse = Id.NAME, defaultImpl = ..., every distinct unrecognized type ID...

DEBIAN-CVE-2026-91776

TypeDeserializerBase.findDeserializer in FasterXML jackson-databind caches the resolved deserializer under the raw, attacker-supplied type ID. When name-based polymorphism is configured with a fallback, for example @JsonTypeInfouse = Id.NAME, defaultImpl = ..., every distinct unrecognized type ID...

CVE-2026-91776

TypeDeserializerBase.findDeserializer in FasterXML jackson-databind caches the resolved deserializer under the raw, attacker-supplied type ID. When name-based polymorphism is configured with a fallback, for example @JsonTypeInfouse = Id.NAME, defaultImpl = ..., every distinct unrecognized type ID...

UBUNTU-CVE-2026-91776

TypeDeserializerBase.findDeserializer in FasterXML jackson-databind caches the resolved deserializer under the raw, attacker-supplied type ID. When name-based polymorphism is configured with a fallback, for example @JsonTypeInfouse = Id.NAME, defaultImpl = ..., every distinct unrecognized type ID...

CVE-2026-91776

TypeDeserializerBase.findDeserializer in FasterXML jackson-databind caches the resolved deserializer under the raw, attacker-supplied type ID. When name-based polymorphism is configured with a fallback, for example @JsonTypeInfouse = Id.NAME, defaultImpl = ..., every distinct unrecognized type ID...

Allocation of Resources Without Limits or Throttling

Overview org.codehaus.jackson:jackson-mapper-asl is a high-performance data binding package built on Jackson JSON processor. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the findDeserializer method of TypeDeserializerBase, which cache...

Allocation of Resources Without Limits or Throttling

Overview com.fasterxml.jackson.core:jackson-databind is a library which contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the findDeserializ...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the findDeserializer method of TypeDeserializerBase, which caches every unknown type ID as a distinct key in the deserializers map even when all of them resolve to the same...

CVE-2026-91776

TypeDeserializerBase.findDeserializer in FasterXML jackson-databind caches the resolved deserializer under the raw, attacker-supplied type ID. When name-based polymorphism is configured with a fallback, for example @JsonTypeInfouse = Id.NAME, defaultImpl = ..., every distinct unrecognized type ID...

CVE-2026-91776 jackson-databind: unbounded growth of the type id cache in TypeDeserializerBase retains every unknown raw type ID

TypeDeserializerBase.findDeserializer in FasterXML jackson-databind caches the resolved deserializer under the raw, attacker-supplied type ID. When name-based polymorphism is configured with a fallback, for example @JsonTypeInfouse = Id.NAME, defaultImpl = ..., every distinct unrecognized type ID...

CVE-2026-91776 jackson-databind: unbounded growth of the type id cache in TypeDeserializerBase retains every unknown raw type ID

TypeDeserializerBase.findDeserializer in FasterXML jackson-databind caches the resolved deserializer under the raw, attacker-supplied type ID. When name-based polymorphism is configured with a fallback, for example @JsonTypeInfouse = Id.NAME, defaultImpl = ..., every distinct unrecognized type ID...

CVE-2026-91776: Uncontrolled Resource Consumption

TypeDeserializerBase.findDeserializer in FasterXML jackson-databind caches the resolved deserializer under the raw, attacker-supplied type ID. When name-based polymorphism is configured with a fallback, for example @JsonTypeInfouse = Id.NAME, defaultImpl = ..., every distinct unrecognized type ID...

Linux Distros Unpatched Vulnerability : CVE-2026-91776

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - TypeDeserializerBase.findDeserializer in FasterXML jackson-databind caches the resolved deserializer under the raw, attacker-supplied type ID. When name-based...

Astra Linux – Vulnerability in Samba

A flaw was identified in the way Samba, as an Active Directory Domain Controller, implemented Kerberos name-based authentication. If Samba’s AD DC did not strictly require a Kerberos PAC and always used the SIDs contained within it, it could become confused about the user represented by a ticket...

Improper Authorization

Keycloak is vulnerable to Improper Authorization. The vulnerability is due to missing authorization checks in name-based admin REST API endpoints for composite role management, which allows a delegated administrator with manage-realm permissions to remove essential child roles from built-in admin...

CVE-2026-18207 Keycloak-services: keycloak-services: client policy source-group condition bypass via duplicate group name matching

A flaw was found in the client policy enforcement mechanism of Keycloak. The issue occurs when the system checks group membership by name instead of a unique identifier. An attacker with client management privileges could bypass security policies by joining a group with a matching name in a...