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)
-
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.
-
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.
-
Implementation
Explicitly define a final object() to prevent deserialization.
-
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.
-
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.
-
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.
-
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
3,353 results · Feed
-
Critical 9.8
Foundation Agents MetaGPT deserialize_message Deserialization of Untrusted Data Remote Code Execution Vulnerability
Foundation Agents MetaGPT deserialize_message Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foundation Agents MetaGPT. Authentication is…
-
High 8.8
WordPress North theme <= 5.7.5 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in fuelthemes North north-wp allows Object Injection.This issue affects North: from n/a through <= 5.7.5.
-
Critical 9.8
WordPress Sound | Musical Instruments Online Store theme <= 1.6.9 - Deserialization of untrusted data vulnerability
Deserialization of Untrusted Data vulnerability in ThemeREX Sound | Musical Instruments Online Store musicplace allows Object Injection.This issue affects Sound | Musical Instruments Online Store: from n/a through <= 1.6.9.
-
High 8.8
WordPress Tech Life CPT plugin <= 16.4 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in strongholdthemes Tech Life CPT techlife-cpt allows Object Injection.This issue affects Tech Life CPT: from n/a through <= 16.4.
-
High 8.8
WordPress Dental Care CPT plugin < 21.6 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in Strongholdthemes Dental Care CPT dentalcare-cpt allows Object Injection.This issue affects Dental Care CPT: from n/a before 21.6.
-
High 8.8
WordPress OneLife theme <= 3.9 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in designthemes OneLife onelife allows Object Injection.This issue affects OneLife: from n/a through <= 3.9.
-
High 8.8
WordPress Anona theme <= 8.0 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in AivahThemes Anona anona allows Object Injection.This issue affects Anona: from n/a through <= 8.0.
-
High 8.8
WordPress Vivagh theme <= 2.4 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in designthemes Vivagh vivagh allows Object Injection.This issue affects Vivagh: from n/a through <= 2.4.
-
High 8.8
WordPress Eventin plugin <= 4.1.3 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in Arraytics Eventin wp-event-solution allows Object Injection.This issue affects Eventin: from n/a through <= 4.1.3.
-
High 8.8
WordPress Kids Heaven theme <= 3.2 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in designthemes Kids Heaven kids-world allows Object Injection.This issue affects Kids Heaven: from n/a through <= 3.2.
-
Critical 9.8
WordPress Consult Aid theme <= 1.4.3 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in themeton Consult Aid consultaid allows Object Injection.This issue affects Consult Aid: from n/a through <= 1.4.3.
-
High 8.8
WordPress JupiterX Core plugin <= 4.10.1 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in artbees JupiterX Core jupiterx-core allows Object Injection.This issue affects JupiterX Core: from n/a through <= 4.10.1.
-
High 8.1CVE-2026-24009 Public exploit
Docling Core vulnerable to Remote Code Execution via unsafe PyYAML usage
Docling Core (or docling-core) is a library that defines core data types and transformations in the document processing application Docling. A PyYAML-related Remote Code Execution (RCE) vulnerability, namely CVE-2020-14343, is exposed in docling-core starting…
-
Medium 6.8
Tendenci has Authenticated Remote Code Execution via Pickle Deserialization
Tendenci is an open source content management system built for non-profits, associations and cause-based sites. Versions 15.3.11 and below include a critical deserialization vulnerability in the Helpdesk module (which is not enabled by default). This vulnerab…
-
High 7.5
seroval Affected by Remote Code Execution via JSON Deserialization
seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 1.4.0 and below, improper input handling in the JSON deserialization component can lead to arbitrary JavaScript code execution. Exploita…
-
Critical 9.8CVE-2026-23524 Public exploit
Laravel Redis Horizontal Scaling Insecure Deserialization
Laravel Reverb provides a real-time WebSocket communication backend for Laravel applications. In versions 1.6.3 and below, Reverb passes data from the Redis channel directly into PHP’s unserialize() function without restricting which classes can be instantiat…
-
High 8.1
Nexter Extension – Site Enhancements Toolkit <= 4.4.6 - Unauthenticated PHP Object Injection via 'nxt_unserialize_replace'
The Nexter Extension – Site Enhancements Toolkit plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 4.4.6 via deserialization of untrusted input in the 'nxt_unserialize_replace' function. This makes it possible fo…
-
Medium 5.2
Insecure Deserialization in extension "Mailqueue" (mailqueue)
The extension extends TYPO3’ FileSpool component, which was vulnerable to Insecure Deserialization prior to TYPO3-CORE-SA-2026-004 https://typo3.org/security/advisory/typo3-core-sa-2026-004 . Since the related fix is overwritten by the extension, using the ex…
-
Critical 9.8
An undocumented and unsafe feature in the PLY (Python Lex-Yacc) library 3.11 allows Remote Code Execution (RCE) via the…
-
High 7.5
UmbracoForms Vulnerable to Remote Code Execution via Untrusted WSDL Compilation in Dynamic SOAP Client Generation
In Umbraco UmbracoForms through 8.13.16, an authenticated attacker can supply a malicious WSDL (aka Webservice) URL as a data source for remote code execution.
-
Critical 9.3
Changjetong T+ <= 16.x GetStoreWarehouseByStore Deserialization RCE
Changjetong T+ versions up to and including 16.x contain a .NET deserialization vulnerability in an AjaxPro endpoint that can lead to remote code execution. A remote attacker can send a crafted request to /tplus/ajaxpro/Ufida.T.CodeBehind._PriorityLevel,App_C…
-
Critical 9.3
Entrust Instant Financial Issuance (IFI) SmartCardController Service .NET Remoting RCE
Entrust Instant Financial Issuance (IFI) On Premise software (formerly referred to as CardWizard) versions 5.x, prior to 6.10.5, and prior to 6.11.1 contain an insecure .NET Remoting exposure in the SmartCardController service (DCG.SmartCardControllerService.…
-
High 7.5
Azure Core shared client library for Python Remote Code Execution Vulnerability
Deserialization of untrusted data in Azure Core shared client library for Python allows an authorized attacker to execute code over a network.
-
Critical 9.8
Microsoft SharePoint Remote Code Execution Vulnerability
Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
KEV Mar 18, 2026 -
Medium 5.2
TYPO3 CMS Allows Insecure Deserialization via Mailer File Spool
TYPO3's mail‑file spool deserialization flaw lets local users with write access to the spool directory craft a malicious file that is deserialized during the mailer:spool:send command, enabling arbitrary PHP code execution on the web server. This issue affect…
-
High 8.4
LlamaIndex <= 0.11.6 BGEM3Index Unsafe Deserialization
LlamaIndex (run-llama/llama_index) versions up to and including 0.11.6 contain an unsafe deserialization vulnerability in BGEM3Index.load_from_disk() in llama_index/indices/managed/bge_m3/base.py. The function uses pickle.load() to deserialize multi_embed_sto…
-
Low 2.3
Spectrum insecure deserialiation
Deserialization of Untrusted Data vulnerability in Broadcom DX NetOps Spectrum on Windows, Linux allows Object Injection.This issue affects DX NetOps Spectrum: 24.3.13 and earlier.
-
High 8.9
Fickling vulnerable to detection bypass due to "builtins" blindness
Fickling is a Python pickling decompiler and static analyzer. Prior to version 0.1.7, Fickling is vulnerable to detection bypass due to "builtins" blindness. This issue has been patched in version 0.1.7.
-
High 8.9
Fickling has Static Analysis Bypass via Incomplete Dangerous Module Blocklist
Fickling is a Python pickling decompiler and static analyzer. Prior to version 0.1.7, the unsafe_imports() method in Fickling's static analyzer fails to flag several high-risk Python modules that can be used for arbitrary code execution. Malicious pickles imp…
-
High 8.9
Fickling vulnerable to use of ctypes and pydoc gadget chain to bypass detection
Fickling is a Python pickling decompiler and static analyzer. Prior to version 0.1.7, both ctypes and pydoc modules aren't explicitly blocked. Even other existing pickle scanning tools (like picklescan) do not block pydoc.locate. Chaining these two together c…
-
High 8.9
Fickling Blocklist Bypass: cProfile.run()
Fickling is a Python pickling decompiler and static analyzer. Fickling versions up to and including 0.1.6 do not treat Python's cProfile module as unsafe. Because of this, a malicious pickle that uses cProfile.run() is classified as SUSPICIOUS instead of OVER…
-
High 8.9
Fickling has a bypass via runpy.run_path() and runpy.run_module()
Fickling is a Python pickling decompiler and static analyzer. Fickling versions up to and including 0.1.6 do not treat Python’s runpy module as unsafe. Because of this, a malicious pickle that uses runpy.run_path() or runpy.run_module() is classified as SUSPI…
-
Critical 9.8
WordPress Newsletters plugin <= 4.11 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in Tribulant Software Newsletters newsletters-lite allows Object Injection.This issue affects Newsletters: from n/a through <= 4.11.
-
Medium 6.8CVE-2026-22187 Public exploit
Bio-Formats <= 8.3.0 Memoizer Unsafe Deserialization via .bfmemo Cache Files
Bio-Formats versions up to and including 8.3.0 perform unsafe Java deserialization of attacker-controlled memoization cache files (.bfmemo) during image processing. The loci.formats.Memoizer class automatically loads and deserializes memo files associated wit…
-
Critical 9.8
WordPress DZS Video Gallery plugin <= 12.37 - PHP Object Injection Vulnerability
Deserialization of Untrusted Data vulnerability in Digital zoom studio DZS Video Gallery allows Object Injection.This issue affects DZS Video Gallery: from n/a through 12.37.
-
High 8.8
WordPress DZS Video Gallery plugin <= 12.25 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in Digital zoom studio DZS Video Gallery allows Object Injection.This issue affects DZS Video Gallery: from n/a through 12.25.
-
High 8.8
WordPress Themify Edmin theme <= 2.0.0 - PHP Object Injection Vulnerability
Deserialization of Untrusted Data vulnerability in Themify Themify Edmin allows Object Injection.This issue affects Themify Edmin: from n/a through 2.0.0.
-
Medium 6.3
milvus HTTP Endpoint expr.go expr.Exec deserialization
A security vulnerability has been detected in milvus up to 2.6.7. This vulnerability affects the function expr.Exec of the file pkg/util/expr/expr.go of the component HTTP Endpoint. The manipulation of the argument code leads to deserialization. Remote exploi…
-
Medium 4.7
PluXml Media Management medias.php __destruct deserialization
A vulnerability was determined in PluXml up to 5.8.22. Affected is the function FileCookieJar::__destruct of the file core/admin/medias.php of the component Media Management Module. Executing a manipulation of the argument File can lead to deserialization. Th…
-
High 7.8
Arbitrary Code Execution in feast-dev/feast
A high-severity remote code execution vulnerability exists in feast-dev/feast version 0.53.0, specifically in the Kubernetes materializer job located at `feast/sdk/python/feast/infra/compute_engines/kubernetes/main.py`. The vulnerability arises from the use o…