Weakness (CWE)
CWE-502: Deserialization of Untrusted Data
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
How to prevent it (7 mitigations)
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Architecture and Design, Implementation
If available, use the signing/sealing features of the programming language to assure that deserialized data has not been tainted. For example, a hash-based message authentication code (HMAC) could be used to ensure that data has not been modified.
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Implementation
When deserializing data, populate a new object rather than just deserializing. The result is that the data flows through safe input validation and that the functions are safe.
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Implementation
Explicitly define a final object() to prevent deserialization.
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Architecture and Design, Implementation
Make fields transient to protect them from deserialization.
An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.
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Implementation
Avoid having unnecessary types or gadgets (a sequence of instances and method invocations that can self-execute during the deserialization process, often found in libraries) available that can be leveraged for malicious ends. This limits the potential for unintended or unauthorized types and gadgets to be leveraged by the attacker. Add only acceptable classes to an allowlist. Note: new gadgets are constantly being discovered, so this alone is not a sufficient mitigation.
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Architecture and Design, Implementation
Employ cryptography of the data or code for protection. However, it's important to note that it would still be client-side security. This is risky because if the client is compromised then the security implemented on the client (the cryptography) can be bypassed.
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Operation
Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth [REF-1481].
Source: MITRE CWE-502
1,644 results · Clear filters · Feed
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High 8.8
WordPress Anti-Malware Security and Brute-Force Firewall plugin <= 4.23.87 - PHP Object Injection vulnerability
Contributor PHP Object Injection in Anti-Malware Security and Brute-Force Firewall <= 4.23.87 versions.
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High 7.2
WordPress WooCommerce PDF Invoices & Packing Slips plugin < 5.9.0 - PHP Object Injection vulnerability
Shop manager PHP Object Injection in WooCommerce PDF Invoices & Packing Slips < 5.9.0 versions.
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High 7.2
WordPress ShortPixel Image Optimizer plugin <= 6.4.3 - PHP Object Injection vulnerability
Author PHP Object Injection in ShortPixel Image Optimizer <= 6.4.3 versions.
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High 7.2
WordPress CTX Feed plugin <= 6.6.26 - PHP Object Injection vulnerability
Shop manager PHP Object Injection in CTX Feed <= 6.6.26 versions.
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High 8.1
WordPress Paid Videochat Turnkey Site plugin <= 7.3.23 - Deserialization of untrusted data vulnerability
Unauthenticated Deserialization of untrusted data in Paid Videochat Turnkey Site <= 7.3.23 versions.
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High 7.5
Insecure Deserialisation via Plaintext HTTP leading to Remote Code Execution in Quick.CMS
Quick.CMS deserializes user-controlled data received over plaintext HTTP without ensuring integrity or authenticity. This allows attackers to tamper with serialized payloads in transit and inject malicious objects. Because deserialization is performed without…
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High 7.8CVE-2026-12191 Public exploit
Comma AI Openpilot Pickle modeld.py pickle.loads deserialization
A vulnerability was found in Comma AI Openpilot 0.11. This issue affects the function pickle.load/pickle.loads of the file selfdrive/modeld/modeld.py of the component Pickle Module. The manipulation results in deserialization. The attack is only possible with…
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High 8.1
Apache CXF: JNDI Injection vulnerability in DispatchMDBMessageListenerImpl
A JNDI Injection vulnerability has been discovered in Apache CXF's JCA integration module, which can allow for code execution, if an attacker is able to manipulate the JCA deployment descriptor (ra.xml) or runtime activation parameters. Users are recommended …
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High 8.1
Apache CXF: JNDI Injection Vulnerability in JMSConfigFactory
A further incomplete fix for a previous advisory CVE-2026-44417 (Untrusted JMS configuration can lead to RCE) for Apache CXF has been identified, which can allow code execution capabilities, if untrusted users are allowed to configure JMS for Apache CXF. User…
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High 8.1
Unsafe Deserialization in Spring GraphQL
Spring for GraphQL applications are vulnerable to Unsafe Deserialization when processing paginated GraphQL queries. An attacker can craft a malicious GraphQL request that can lead to Remote Code Execution when the application exposes a paginated (Connection) …
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High 8.8
Remote Code Execution through Deserialization of Untrusted Data in Splunk Secure Gateway
In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, and 9.3.13, Splunk Cloud Platform versions below 10.3.2512.12, 10.2.2510.14, 10.1.2507.22, and 9.3.2411.132, and Splunk Secure Gateway versions below 3.10.6, 3.9.20, and 3.8.67, a low-privileged user…
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High 8.8
Jenkins arbitrary type deserialization from attacker-controlled config.xml allows remote code execution and user impersonation
In Jenkins 2.567 and earlier, LTS 2.555.2 and earlier, it is possible for attackers to have Jenkins deserialize arbitrary types defined in Jenkins core or plugins from an attacker-controlled `config.xml` submission in a way that allows them to handle HTTP req…
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High 8.8
Ghidra < 12.1 - Remote Code Execution via Unfiltered RMI Deserialization in Shared Project Connection
Ghidra before 12.1 contains an unsafe deserialization vulnerability in client-side Shared-Project RMI connection code that allows unauthenticated remote code execution. Attackers can craft a malicious project file with a ghidra:// URL that, when opened via Fi…
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High 8.4
Concrete CMS below 9.5.2 is vulnerable to PHP Object Injection via unserialize() calls in the in Permission, Cache, and Search components
Concrete CMS below 9.5.2 is vulnerable to PHP Object Injection via unserialize() calls in the in Permission, Cache, and Search components. An unauthenticated attacker may trigger arbitrary PHP object instantiation if a malicious serialized payload has been p…
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High 8.1
In Spring for Apache Pulsar, overly broad trusted-package matching in header mapper exposes JDK classes to deserialization
JsonPulsarHeaderMapper matched type headers against trusted packages using a prefix check, meaning that trusting any package implicitly trusted all of its subpackages. Additionally, an empty trusted-packages configuration fell back to trusting all packages ra…
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High 8.1
In Spring for Apache Kafka, overly broad trusted-package matching in header mappers exposes JDK classes to deserialization
JsonKafkaHeaderMapper and the deprecated DefaultKafkaHeaderMapper matched type headers against trusted packages using a prefix check, meaning that trusting any package implicitly trusted all of its subpackages. Combined with Jackson's default bean deserializa…
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High 7.3
Unfiltered Java Native Deserialization of SAML 2.0 Asserting Party Credentials BLOB Database Entry
An attacker with write permissions to the database table managed by JdbcAssertingPartyMetadataRepository (saml2_asserting_party_metadata) may be able to store malicious serialized payloads in the columns containing the collection of verification or encryption…
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High 8.8CVE-2026-45484 EPSS 34%
Microsoft SharePoint Elevation of Privilege Vulnerability
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
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High 8.8
Blocksy <= 2.1.41 - Authenticated (Contributor+) PHP Object Injection via Deserialization of Untrusted Data via 'blocksy_meta' REST API Field
The Blocksy theme for WordPress is vulnerable to PHP Object Injection leading to Remote Code Execution via the 'blocksy_meta' REST API field and the V200 database migration in versions up to and including 2.1.35. This is due to insufficient input sanitization…
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High 8.1
Spring Framework Unsafe Deserialization via Jackson JMS Converters
In an untrusted JMS environment, org.springframework.jms.support.converter.MappingJackson2MessageConverter and org.springframework.jms.support.converter.JacksonJsonMessageConverter allow arbitrary class instantiation, which can lead to unauthorized actions vi…
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High 8.8CVE-2026-7654 Public exploit
Admin Columns <= 7.0.18 - Authenticated (Contributor+) PHP Object Injection to Remote Code Execution via Custom Field Meta Value
The Admin Columns plugin for WordPress is vulnerable to PHP Object Injection leading to Remote Code Execution in versions up to and including 7.0.18. This is due to the use of `unserialize()` without an `allowed_classes` restriction in the `IdsToCollection::g…
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High 7.8
Seagull Software BarTender Deserialization Privilege Escalation via .NET Remoting Service
Seagull Software BarTender 2021 R1 through 12.0.1 contains an insecure deserialization vulnerability that allows low-privileged local users to escalate privileges. The DataServiceSingleton .NET Remoting endpoint is bound to localhost on TCP port 7375 via BtSy…
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High 8.4
Concrete CMS below 9.5.3 is vulnerable to PHP Object Injection via unserialize() calls in the Workflow, Form block, and File/Set components that lack the allowed_classes restriction.
Concrete CMS below 9.5.3 is vulnerable to PHP Object Injection via unserialize() calls in the Workflow, Form block, and File/Set components that lack the allowed_classes restriction. The Form block and File/Set sinks were addressed in 9.5.2; the Workflow comp…
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High 8.1
React Router's vendored turbo-stream v2 allows arbitrary constructor invocation via TYPE_ERROR deserialization leading to Unauth RCE
React Router is a router for React. In versions 7.0.0 through 7.14.1, when using Framework Mode, a combination of steps could potentially allow unauthorized remote code execution (RCE) through external requests. This attack requires the application code to ha…
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High 7.8
NVIDIA NVTabular contains a vulnerability where an attacker could cause improper deserialization of untrusted data. A s…
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High 7.8
NVIDIA NVTabular contains a vulnerability where an attacker could cause improper deserialization of untrusted data. A s…
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High 8.1
WordPress Askka theme <= 1.3.1 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in Elated-Themes Askka allows Object Injection. This issue affects Askka: from n/a through 1.3.1.
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High 8.1
WordPress Töbel theme <= 1.8.1 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in Elated-Themes Töbel allows Object Injection. This issue affects Töbel: from n/a through 1.8.1.
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High 8.1
WordPress Aperitif theme <= 1.6 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in Elated-Themes Aperitif allows Object Injection. This issue affects Aperitif: from n/a through 1.6.
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High 8.5
IBM WebSphere Application Server is affected by remote code execution
IBM WebSphere Application Server 9.0, and 8.5 is affected by an improper validation of user-supplied data during deserialization using the SAML Web Single Sign-On component. This could result in remote code execution via a crafted HTTP request when combined w…
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High 8.1
AI Tensor Engine for ROCm (AITER) 0.1.14 Unauthenticated RCE via MessageQueue.recv() Pickle Deserialization
AI Tensor Engine for ROCm (AITER) through 0.1.14 contains an unauthenticated remote code execution vulnerability in the MessageQueue.recv() function within shm_broadcast.py that allows unauthenticated remote attackers to execute arbitrary code by sending a ma…
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High 8.8
Apache Airflow: Authenticated RCE via XCom PATCH endpoint — XComUpdateBody missing FORBIDDEN_XCOM_KEYS validator
A bug in Apache Airflow's XCom PATCH endpoint `PATCH /api/v2/xcomEntries/{key}` allowed an authenticated UI/API user with XCom write permission on a Dag to set XCom entries under reserved key names (e.g. `return_value`) that the matching POST endpoint already…
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High 7.3
Apache Airflow: Arbitrary import in custom deadline-reference deserialization
Apache Airflow's scheduler-side deadline-reference decoder (`SerializedCustomReference.deserialize_reference`) imported and dispatched arbitrary class paths drawn from DAG-author-controlled serialized state without an allowlist or plugin-registry gate. A DAG …
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High 7.8
An issue in ESA AnomalyMatch before 1.3.1 allow attackers to execute arbitrary code via crafted model checkpoint files.…
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High 8.8
WooCommerce Infinite Scroll and Ajax Pagination <= 1.8 - Authenticated (Subscriber+) PHP Object Injection
The WooCommerce Infinite Scroll and Ajax Pagination plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.8 via the 'settings' parameter in the 'import_settings' function. This is due to deserialization of untruste…
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High 7.3
An issue in SMSGate sms-core<=2.1.13.6 allows a remote attacker to execute arbitrary code via the Cmpp7FDeliverRequestM…
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High 7.1
LangSmith Client SDK: Public prompt pull deserializes untrusted manifests without trust boundary warning
LangSmith Client SDKs provide SDK's for interacting with the LangSmith platform. Prior to LangSmith SDK Python 0.8.0 and JS/TS 0.6.0, the LangSmith SDK's prompt pull methods (pull_prompt / pull_prompt_commit in Python, pullPrompt / pullPromptCommit in JS/TS) …
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High 8.7
RELATE Vulnerable to Remote Code Execution (RCE) via Insecure Celery Pickle Deserialization
RELATE is a web-based courseware package. Prior to commit d66ba5659b459bf1ba56b7109b5f9ecf197cbefb, RELATE LMS configures its Celery workers to accept and deserialize untrusted 'pickle' data. An attacker who can reach the message broker can execute arbitrary …
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High 8.2
LangChain: Unsafe deserialization of attacker-controlled LangChain objects through overly broad `load()` allowlists
LangChain is a framework for building agents and LLM-powered applications. Prior to 0.3.85 and 1.3.3, LangChain contains older runtime code paths that deserialize run inputs, run outputs, or other application-controlled payloads using overly broad object allo…
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High 7.8
NVIDIA Transformers4Rec for Linux contains a vulnerability where an attacker could cause improper deserialization of un…