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 8.2
NVIDIA Dynamo for Linux contains a vulnerability where an attacker could cause deserialization of untrusted data. A suc…
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High 7.8
Remote Code Execution via Insecure Deserialization in TÜBİTAK BİLGEM's eta-otp-lock
Deserialization of untrusted data vulnerability in TUBITAK BILGEM Software Technologies Research Institute eta-otp-lock allows Object Injection. This issue affects eta-otp-lock: before 1.0.4.
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High 8.1
Chama < 1.0.13 - Unauthenticated PHP Object Injection
The ChamaWP WordPress plugin before 1.0.13 does not properly validate user input before passing it to a PHP deserialization function, allowing unauthenticated attackers to inject arbitrary PHP objects, which could lead to remote code execution when a suitable…
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High 7.5
A deserialization vulnerability in PRISMAproduction Version 6.5 or earlier that may lead to arbitrary code execution.
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High 7.5
Kirki < 6.0.13 - Unauthenticated PHP Object Injection
The Kirki WordPress plugin before 6.0.13 does not restrict which classes may be instantiated when it deserialises data that unauthenticated users can store, leading to PHP Object Injection that is triggered when an administrator later reviews the stored data.…
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High 8.5
IBM WebSphere Application Server is affected by a remote code execution vulnerability
IBM WebSphere Application Server 9.0, and 8.5 is affected by a remote code execution vulnerability in the SOAP/JMX connector.
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High 7.5
e107 Second-Order Code Execution via eval()-Based Deserialization in e_array::unserialize()
e107 prior to version 2.3.8 contains a code execution vulnerability in the e_array deserialization handler that allows an attacker with out-of-band database write access to execute arbitrary PHP code by storing a crafted payload in the user_prefs column. The …
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High 7.5
BuddyPress <= 14.5.0 - Authenticated (Subscriber+) PHP Object Injection via XProfile Field Data
The BuddyPress plugin for WordPress is vulnerable to Deserialization of Untrusted Data in all versions up to, and including, 14.5.0 This is due to the `bp_unserialize_profile_field()` function using `@unserialize()` without the `allowed_classes` parameter on …
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High 7.5
Apache Traffic Server: Cache deserialization and lifetime errors can corrupt state or crash the server
Apache Traffic Server mishandles on-disk cache fields and object lifetimes, corrupting state or crashing. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgr…
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High 8.1
IBM WebSphere Application Server is affected by cross-site scripting and deserialization vulnerabilities
IBM WebSphere Application Server 8.5, and 9.0 traditional could allow a remote attacker to execute arbitrary code caused by unsafe deserialization of untrusted data.
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High 8.8
Potential remote code execution on an Artifactory package service container.
A deserialization weakness in JFrog Artifactory package handling could allow a low-privileged user to impact confidentiality, integrity, and availability under specific repository conditions.
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High 8.8
Fluent Forms Pro Add On Pack <= 6.2.6 - Authenticated (Subscriber+) PHP Object Injection to Arbitrary User Password Change via User Meta Field
The Fluent Forms Pro Add On Pack plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 6.2.6 via deserialization of untrusted input. This makes it possible for authenticated attackers, with Subscriber-level access an…
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High 8.7
C-CURE 9000 and Victor application server - Deserialization of Untrusted Data
Deserialization of untrusted data vulnerability in Johnson Control victor on Windows, Johnson Controls CCure 9000, and Johnson Controls Victor Application Server allows capec-586. This issue affects victor: before 8.0; CCure 9000: before 3.2; Victor Applicati…
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High 7.2
WordPress Complianz plugin <= 7.5.0 - PHP Object Injection vulnerability
Administrator PHP Object Injection in Complianz <= 7.5.0 versions.
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High 7.5
WordPress Dokan Pro plugin <= 5.0.2 - PHP Object Injection vulnerability
Subscriber PHP Object Injection in Dokan Pro <= 5.0.2 versions.
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High 8.8
Vulnerability in the Oracle Platform Security for Java product of Oracle Fusion Middleware (component: Centralized Thir…
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High 8.8
Vulnerability in the Oracle Platform Security for Java product of Oracle Fusion Middleware (component: Centralized Thir…
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High 8.8
Vulnerability in the Oracle Platform Security for Java product of Oracle Fusion Middleware (component: Centralized Thir…
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High 8.1
PersistenceFramework Unsafe Type Resolution Vulnerability in Telerik UI for ASP.NET AJAX
In Progress® Telerik® UI for AJAX prior to v2026.2.708, a deserialization vulnerability in the persistence utilities allows unsafe type instantiation from attacker-influenced persisted state, which can lead to remote code execution.
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High 8.1
PersistenceFramework Cookie Deserialization Vulnerability in Telerik UI for ASP.NET AJAX
In Progress® Telerik® UI for AJAX prior to v2026.2.708, applications using cookie-based storage in RadPersistenceManager or RadDockLayout deserialize attacker-controlled cookie content, allowing unauthenticated remote code execution.
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High 7.4
Vulnerability in Oracle Java SE (component: Scripting). Supported versions that are affected are Oracle Java SE: 8u491,…
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High 8.4
Wazuh cluster DAPI arbitrary callable deserialization and RBAC context injection allow a cluster peer to execute privileged functions on the master node
Wazuh is a free and open source platform used for threat prevention, detection, and response. Prior to version 4.14.5, issues in the Cluster Distributed API (DAPI) handling allow a cluster peer, or any actor able to authenticate to the cluster channel using t…
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High 7.8
Unsafe Deserialization in keras.layers.TorchModuleWrapper.from_config
A vulnerability in keras-team/keras version 3.15.0 allows unsafe deserialization of attacker-controlled PyTorch pickle data through the public `keras.layers.TorchModuleWrapper.from_config` method. This method invokes `torch.load(..., weights_only=False)` with…
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High 8.0
Pimcore: Unsafe PHP Deserialization in Multiple Locations Without allowed_classes Restriction
Pimcore is an Open Source Data & Experience Management Platform. Prior to 11.5.17 (LTS) and 12.3.7, multiple Pimcore locations call PHP's unserialize() on data from database columns and filesystem files without the allowed_classes restriction, including lib/T…
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High 8.1
Uncanny Automator <= 7.3.1.4 - Unauthenticated PHP Object Injection to Arbitrary File Deletion via Forminator Submitted-Field Token
The Uncanny Automator – Easy Automation, Integration, Webhooks & Workflow Builder Plugin plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the fr_token function in all versions up to, and including, 7.3.…
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High 7.8
NVIDIA TensorRT-LLM contains a vulnerability in its inter-process communication layer where an attacker with local same…
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High 8.4
NVIDIA TensorRT-LLM for Linux contains a vulnerability in the restricted unpickler used for model weight deserializatio…
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High 7.8
.NET Remote Code Execution Vulnerability
Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code locally.
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High 7.8
.NET Framework Remote Code Execution Vulnerability
Protection mechanism failure in .NET Framework allows an unauthorized attacker to execute code locally.
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High 8.3
Symfony: Unauthenticated PHP Object Deserialization in MonologBridge server:log Listener
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, the server:log listener (Symfony\Bridge\Monolog\Command\ServerLogCommand) binds to 0.0.0.0:9911 by default and proce…
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High 7.8
Wireless Wide Area Network Service (WwanSvc) Elevation of Privilege Vulnerability
Deserialization of untrusted data in Windows Wireless Wide Area Network Service allows an authorized attacker to elevate privileges locally.
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High 7.5
Azure Active Directory Denial of Service Vulnerability
Deserialization of untrusted data in Azure Active Directory allows an unauthorized attacker to deny service over a network.
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High 7.8
Microsoft Exchange Server Elevation of Privilege Vulnerability
Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.
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High 8.1CVE-2026-12583 Scanner template
Newsletters < 4.15 - Unauthenticated PHP Object Injection via Subscriber Custom Field
The Newsletters WordPress plugin before 4.15 does not prevent deserialization of untrusted input that is stored through a public form, allowing unauthenticated attackers to inject a PHP object and, via a property-oriented gadget chain bundled with the Newslet…
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High 7.6
Remote Code Execution vulnerability in SAP Change and Transport System Attach Tool (ctsattach)
SAP Change and Transport System Attach Tool (ctsattach) allows an authenticated attacker to supply a specially crafted archive file which, when processed by the application�s library, can trigger insecure deserialization and lead to remote code execution (RCE…
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High 7.2
WordPress Real Testimonials plugin <= 3.1.15 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in ShapedPlugin LLC Real Testimonials testimonial-free allows Object Injection.This issue affects Real Testimonials: from n/a through <= 3.1.15.
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High 8.8
WordPress Events Manager plugin <= 7.3.6 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in Marcus (aka @msykes) Events Manager events-manager allows Object Injection.This issue affects Events Manager: from n/a through <= 7.3.6.
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High 8.8
WordPress WPJAM Basic plugin <= 7.0 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in denishua WPJAM Basic wpjam-basic allows Object Injection.This issue affects WPJAM Basic: from n/a through <= 7.0.
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High 8.3
Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Deserialization of untrusted data in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
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High 7.5
Spinnaker: Improper yaml processing on kustomize bake operations
Spinnaker is an open source, multi-cloud continuous delivery platform. Prior to versions 2026.1.1, 2026.0.3, 2025.4.4, and 2025.3.4 on their respective release lines, Kustomize bake operations allow unsafe YAML tag processing in rosco manifests. This can lead…