Common Weakness Enumeration

CWE-502

Allowed

Deserialization of Untrusted Data

Abstraction: Base · Status: Draft

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

5789 vulnerabilities reference this CWE, most recent first.

CVE-2026-96833 (GCVE-0-2026-96833)

Vulnerability from cvelistv5 – Published: 2026-09-30 12:27 – Updated: 2026-09-30 13:27
VLAI
Title
WordPress Ultimate Addons for Contact Form 7 plugin <= 3.5.51 - PHP Object Injection vulnerability
Summary
Editor PHP Object Injection in Ultimate Addons for Contact Form 7 <= 3.5.51 versions.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 13:04 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack CNA under the mitre root
CNA scorecard C 75/100 over 2953 records in the last 180 days details
References
Impacted products
Vendor Product Version
Themefic Ultimate Addons for Contact Form 7 Affected: n/a , ≤ 3.5.51 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-96832 (GCVE-0-2026-96832)

Vulnerability from cvelistv5 – Published: 2026-09-30 12:27 – Updated: 2026-09-30 13:27
VLAI
Title
WordPress Content Egg plugin <= 6.3.1 - PHP Object Injection vulnerability
Summary
Shop manager PHP Object Injection in Content Egg <= 6.3.1 versions.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 13:04 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack CNA under the mitre root
CNA scorecard C 75/100 over 2953 records in the last 180 days details
References
Impacted products
Vendor Product Version
keywordrush Content Egg Affected: n/a , ≤ 6.3.1 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-96831 (GCVE-0-2026-96831)

Vulnerability from cvelistv5 – Published: 2026-09-30 12:27 – Updated: 2026-09-30 13:27
VLAI
Title
WordPress Themify Builder plugin <= 7.8.1 - PHP Object Injection vulnerability
Summary
Contributor PHP Object Injection in Themify Builder <= 7.8.1 versions.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 13:04 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack CNA under the mitre root
CNA scorecard C 75/100 over 2953 records in the last 180 days details
References
Impacted products
Vendor Product Version
themifyme Themify Builder Affected: n/a , ≤ 7.8.1 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-96745 (GCVE-0-2026-96745)

Vulnerability from cvelistv5 – Published: 2026-09-24 15:51 – Updated: 2026-09-24 18:18
VLAI
Title
PHP object injection via unsuppressible __pclass class inference in command monitoring events
Summary
Deserialization of untrusted data in the command monitoring support of the MongoDB PHP Driver can cause class names embedded in document content to be honored when the driver builds monitoring event objects. When an application registers a command monitoring subscriber and includes untrusted data in a database operation, an unauthenticated party who controls that data may cause an application class implementing the driver's persistable interface to be instantiated and its unserialization method invoked with the supplied data. The resulting impact depends on the classes available in the application.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-24 17:21 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
mongodb CNA under the mitre root
CNA scorecard C 70/100 over 205 records in the last 180 days details
Impacted products
Vendor Product Version
MongoDB PHP Driver Affected: 0 , < 1.21.10 (semver)
Affected: 2.0.0 , < 2.1.10 (semver)
Affected: 2.2.0 , < 2.5.3 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-96560 (GCVE-0-2026-96560)

Vulnerability from cvelistv5 – Published: 2026-09-23 13:32 – Updated: 2026-09-24 14:23
VLAI
Title
LightLLM through 1.2.0 Unauthenticated Remote Code Execution via NCCL PD RPyC Control Channel
Summary
LightLLM through 1.2.0 contains a remote code execution vulnerability in the KV-transfer worker when started with --pd_trans_mode nccl, which exposes an unauthenticated RPyC control channel that deserializes attacker-supplied data. Attackers can send malicious pickled objects to the exposed RPyC ThreadedServer to execute arbitrary code with the privileges of the LightLLM service account.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 14:30 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6516 records in the last 180 days details
Impacted products
Vendor Product Version
ModelTC LightLLM Affected: 0 , ≤ 1.2.0 (semver)
Create a notification for this product.
Date Public
2026-09-22 00:00
Show details on NVD website

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CVE-2026-96344 (GCVE-0-2026-96344)

Vulnerability from cvelistv5 – Published: 2026-09-30 12:27 – Updated: 2026-09-30 13:27
VLAI
Title
WordPress eCommerce Product Catalog plugin <= 3.6.0 - PHP Object Injection vulnerability
Summary
Custom role PHP Object Injection in eCommerce Product Catalog <= 3.6.0 versions.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 13:05 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack CNA under the mitre root
CNA scorecard C 75/100 over 2953 records in the last 180 days details
References
Impacted products
Vendor Product Version
impleCode eCommerce Product Catalog Affected: n/a , ≤ 3.6.0 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-96343 (GCVE-0-2026-96343)

Vulnerability from cvelistv5 – Published: 2026-09-30 12:27 – Updated: 2026-09-30 13:27
VLAI
Title
WordPress WP ERP plugin <= 1.17.9 - PHP Object Injection vulnerability
Summary
Custom role PHP Object Injection in WP ERP <= 1.17.9 versions.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 13:05 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack CNA under the mitre root
CNA scorecard C 75/100 over 2953 records in the last 180 days details
References
Impacted products
Vendor Product Version
weDevs WP ERP Affected: n/a , ≤ 1.17.9 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-96186 (GCVE-0-2026-96186)

Vulnerability from cvelistv5 – Published: 2026-10-13 19:01 – Updated: 2026-10-19 23:51
VLAI
Title
Microsoft Windows Media Foundation Elevation of Privilege Vulnerability
Summary
Deserialization of untrusted data in Microsoft Windows Media Foundation allows an authorized attacker to elevate privileges locally.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 19:48 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
microsoft CNA under the mitre root
CNA scorecard B 82/100 over 3956 records in the last 180 days details
References
Impacted products
Vendor Product Version
Microsoft Windows 10 Version 1607 Affected: 10.0.14393.0 , < 10.0.14393.9612 (custom)
Create a notification for this product.
Microsoft Windows 10 Version 1809 Affected: 10.0.17763.0 , < 10.0.17763.9376 (custom)
Create a notification for this product.
Microsoft Windows 10 Version 21H2 Affected: 10.0.19044.0 , < 10.0.19044.7807 (custom)
Create a notification for this product.
Microsoft Windows 10 Version 22H2 Affected: 10.0.19045.0 , < 10.0.19045.7807 (custom)
Create a notification for this product.
Microsoft Windows 11 version 23H2 Affected: 10.0.22631.0 , < 10.0.22631.7652 (custom)
Create a notification for this product.
Microsoft Windows 11 Version 23H2 Affected: 10.0.22631.0 , < 10.0.22631.7652 (custom)
Create a notification for this product.
Microsoft Windows 11 Version 24H2 Affected: 10.0.26100.0 , < 10.0.26100.9711 (custom)
Create a notification for this product.
Microsoft Windows 11 Version 25H2 Affected: 10.0.26200.0 , < 10.0.26200.9711 (custom)
Create a notification for this product.
Microsoft Windows 11 version 26H1 Affected: 10.0.28000.0 , < 10.0.28000.3231 (custom)
Create a notification for this product.
Microsoft Windows 11 Version 26H2 Affected: 10.0.26300.0 , < 10.0.26300.9711 (custom)
Create a notification for this product.
Microsoft Windows Server 2012 Affected: 6.2.9200.0 , < 6.2.9200.26434 (custom)
Create a notification for this product.
Microsoft Windows Server 2012 (Server Core installation) Affected: 6.2.9200.0 , < 6.2.9200.26434 (custom)
Create a notification for this product.
Microsoft Windows Server 2012 R2 Affected: 6.3.9600.0 , < 6.3.9600.23470 (custom)
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Microsoft Windows Server 2012 R2 (Server Core installation) Affected: 6.3.9600.0 , < 6.3.9600.23470 (custom)
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Microsoft Windows Server 2016 Affected: 10.0.14393.0 , < 10.0.14393.9612 (custom)
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Microsoft Windows Server 2016 (Server Core installation) Affected: 10.0.14393.0 , < 10.0.14393.9612 (custom)
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Microsoft Windows Server 2019 Affected: 10.0.17763.0 , < 10.0.17763.9376 (custom)
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Microsoft Windows Server 2019 (Server Core installation) Affected: 10.0.17763.0 , < 10.0.17763.9376 (custom)
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Microsoft Windows Server 2022 Affected: 10.0.20348.0 , < 10.0.20348.5761 (custom)
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Microsoft Windows Server 2025 Affected: 10.0.26100.0 , < 10.0.26100.33650 (custom)
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Microsoft Windows Server 2025 (Server Core installation) Affected: 10.0.26100.0 , < 10.0.26100.33650 (custom)
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Date Public
2026-10-13 14:00
Show details on NVD website

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CVE-2026-95928 (GCVE-0-2026-95928)

Vulnerability from cvelistv5 – Published: 2026-09-23 01:45 – Updated: 2026-09-23 13:52
VLAI
Title
recommenders-team recommenders Dict Loading mind_iterator.py pickle.load deserialization
Summary
A security flaw has been discovered in recommenders-team recommenders up to 1.2.1. This impacts the function pickle.load of the file recommenders/models/newsrec/io/mind_iterator.py of the component Dict Loading. Performing a manipulation results in deserialization. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 13:50 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 82/100 over 3928 records in the last 180 days details
References
Impacted products
Vendor Product Version
recommenders-team recommenders Affected: 1.2.0
Affected: 1.2.1
    cpe:2.3:a:recommenders-team:recommenders:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-95897 (GCVE-0-2026-95897)

Vulnerability from cvelistv5 – Published: 2026-09-23 00:30 – Updated: 2026-09-23 15:01
VLAI
Title
Dask Loader core.py from_npy_stack deserialization
Summary
A security vulnerability has been detected in Dask up to 2026.8.0. This affects the function from_npy_stack of the file dask/array/core.py of the component Loader. Such manipulation leads to deserialization. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 15:01 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 82/100 over 3928 records in the last 180 days details
References
URL Tags
https://vuldb.com/vuln/408543 vdb-entrytechnical-description
https://vuldb.com/vuln/408543/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-95897 third-party-advisory
https://vuldb.com/submit/953281 third-party-advisory
https://github.com/dask/dask/issues/12578 exploitissue-tracking
https://github.com/dask/dask/ product
Impacted products
Vendor Product Version
n/a Dask Affected: 2026.0
Affected: 2026.1
Affected: 2026.2
Affected: 2026.3
Affected: 2026.4
Affected: 2026.5
Affected: 2026.6
Affected: 2026.7
Affected: 2026.8.0
    cpe:2.3:a:dask:dask:*:*:*:*:*:*:*:*
Show details on NVD website

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Mitigation
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.

Mitigation
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.

Mitigation
Implementation

Explicitly define a final object() to prevent deserialization.

Mitigation
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.
Mitigation
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.

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.

Mitigation MIT-29
Operation

Strategy: Firewall

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].

CAPEC-586: Object Injection

An adversary attempts to exploit an application by injecting additional, malicious content during its processing of serialized objects. Developers leverage serialization in order to convert data or state into a static, binary format for saving to disk or transferring over a network. These objects are then deserialized when needed to recover the data/state. By injecting a malformed object into a vulnerable application, an adversary can potentially compromise the application by manipulating the deserialization process. This can result in a number of unwanted outcomes, including remote code execution.