Common Weakness Enumeration

CWE-502

Allowed

Deserialization of Untrusted Data

Abstraction: Base · Status: Draft

API response cwe.mitre.org

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

5852 vulnerabilities reference this CWE, most recent first.

CVE-2026-32470 (GCVE-0-2026-32470)

Vulnerability from cvelistv5 – Published: 2026-08-18 13:59 – Updated: 2026-08-18 19:48
VLAI
Title
WordPress FundEngine plugin <= 1.7.9 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in FundEngine <= 1.7.9 versions.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 19:31 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack CNA under the mitre root
CNA scorecard B 75/100 over 3052 records in the last 180 days details
References
Impacted products
Vendor Product Version
Roxnor FundEngine Affected: n/a , ≤ 1.7.9 (custom)
Create a notification for this product.
Credits
daroo | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-32465 (GCVE-0-2026-32465)

Vulnerability from cvelistv5 – Published: 2026-08-18 13:59 – Updated: 2026-08-18 15:12
VLAI
Title
WordPress Essential Real Estate plugin <= 5.3.3 - PHP Object Injection vulnerability
Summary
Customer PHP Object Injection in Essential Real Estate <= 5.3.3 versions.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 15:09 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack CNA under the mitre root
CNA scorecard B 75/100 over 3052 records in the last 180 days details
References
Impacted products
Vendor Product Version
g5theme Essential Real Estate Affected: n/a , ≤ 5.3.3 (custom)
Create a notification for this product.
Credits
Steven Julian | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-32355 (GCVE-0-2026-32355)

Vulnerability from cvelistv5 – Published: 2026-03-13 11:42 – Updated: 2026-04-29 09:51
VLAI
Title
WordPress JetEngine plugin < 3.8.4.1 - Deserialization of untrusted data vulnerability
Summary
Deserialization of Untrusted Data vulnerability in Crocoblock JetEngine jet-engine allows Object Injection.This issue affects JetEngine: from n/a through < 3.8.4.1.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-16 13:58 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack CNA under the mitre root
CNA scorecard B 75/100 over 3052 records in the last 180 days details
References
Impacted products
Vendor Product Version
Crocoblock JetEngine Affected: 0 , ≤ 3.8.4.1 (custom)
Create a notification for this product.
Date Public
2026-04-01 16:04
Credits
Phat RiO | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-32192 (GCVE-0-2026-32192)

Vulnerability from cvelistv5 – Published: 2026-04-14 16:57 – Updated: 2026-10-15 15:52
VLAI
Title
Azure Monitor Agent Elevation of Privilege Vulnerability
Summary
Deserialization of untrusted data in Azure Monitor Agent allows an authorized attacker to elevate privileges locally.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-09 00:00 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
microsoft CNA under the mitre root
CNA scorecard B 82/100 over 3954 records in the last 180 days details
References
Impacted products
Vendor Product Version
Microsoft Azure Monitor Affected: 1.0.0 , < 1.41.0 (custom)
    cpe:2.3:a:microsoft:azure_monitor_agent:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-04-14 14:00
Show details on NVD website
To clipboard 

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CVE-2026-32184 (GCVE-0-2026-32184)

Vulnerability from cvelistv5 – Published: 2026-04-14 16:57 – Updated: 2026-10-15 15:52
VLAI
Title
Microsoft High Performance Compute (HPC) Pack Elevation of Privilege Vulnerability
Summary
Deserialization of untrusted data in Microsoft High Performance Compute Pack (HPC) allows an authorized attacker to elevate privileges locally.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-10 00:00 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
microsoft CNA under the mitre root
CNA scorecard B 82/100 over 3954 records in the last 180 days details
References
Impacted products
Vendor Product Version
Microsoft Microsoft HPC Pack 2019 Affected: 1.0.0 , < 6.3.8355 (custom)
    cpe:2.3:a:microsoft:microsoft_hpc_pack_2019:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-04-14 14:00
Show details on NVD website
To clipboard 

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CVE-2026-29782 (GCVE-0-2026-29782)

Vulnerability from cvelistv5 – Published: 2026-04-02 13:42 – Updated: 2026-04-03 19:52
VLAI
Title
OpenSTAManager: Remote Code Execution via Insecure Deserialization in OAuth2
Summary
OpenSTAManager is an open source management software for technical assistance and invoicing. Prior to version 2.10.2, the oauth2.php file in OpenSTAManager is an unauthenticated endpoint ($skip_permissions = true). It loads a record from the zz_oauth2 table using the attacker-controlled GET parameter state, and during the OAuth2 configuration flow calls unserialize() on the access_token field without any class restriction. This issue has been patched in version 2.10.2.
Severity
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-03 19:52 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7761 records in the last 180 days details
References
Impacted products
Vendor Product Version
devcode-it openstamanager Affected: < 2.10.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-29109 (GCVE-0-2026-29109)

Vulnerability from cvelistv5 – Published: 2026-03-19 23:12 – Updated: 2026-03-20 18:09
VLAI
Title
SuiteCRM Authenticated Remote Code Execution via Unsafe Deserialization in SavedSearch Filter Processing
Summary
SuiteCRM is an open-source, enterprise-ready Customer Relationship Management (CRM) software application. Versions up to and including 8.9.2 contain an unsafe deserialization vulnerability in the SavedSearch filter processing component that allows an authenticated administrator to execute arbitrary system commands on the server. `FilterDefinitionProvider.php` calls `unserialize()` on user-controlled data from the `saved_search.contents` database column without restricting instantiable classes. Version 8.9.3 patches the issue.
Severity
8.6 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-20 16:57 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7761 records in the last 180 days details
References
Impacted products
Vendor Product Version
SuiteCRM SuiteCRM-Core Affected: < 8.9.3
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-29001 (GCVE-0-2026-29001)

Vulnerability from cvelistv5 – Published: 2026-10-21 21:03 – Updated: 2026-10-23 13:28 X_Open Source
VLAI
Title
TastyIgniter 4.4.5 PHP Object Injection via Settings Deserialization
Summary
TastyIgniter through 4.4.5 contain a PHP object injection vulnerability that allows authenticated administrators to achieve arbitrary code execution by submitting a serialized PHP object as a settings value, which is stored unsanitized and later unserialized by getValueAttribute() when the setting is read. Attackers can submit a serialized gadget chain, such as one generated via phpggc, through the admin settings form (for example the maintenance_message setting loaded by CheckMaintenance.php) to achieve arbitrary operating-system command execution as the PHP application process user, with the impact persisting until the value is overwritten.
Severity
8.6 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6766 records in the last 180 days details
References
Impacted products
Vendor Product Version
tastyigniter TastyIgniter Affected: 0 , ≤ 4.4.5 (semver)
Create a notification for this product.
Date Public
2026-10-21 00:00
Credits
Adam Młynarczyk
Show details on NVD website
To clipboard 

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CVE-2026-28325 (GCVE-0-2026-28325)

Vulnerability from cvelistv5 – Published: 2026-09-22 19:12 – Updated: 2026-09-23 03:56
VLAI
Title
SolarWinds Observability Self-Hosted Unauthenticated Remote Code Execution Vulnerability
Summary
SolarWinds Observability Self-Hosted was found to be affected by an unauthenticated remote code execution vulnerability stemming from deserialization of untrusted data when the application is configured to use a specific communication mode.
Severity
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 00:00 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
SolarWinds CNA under the mitre root
CNA scorecard B 83/100 over 27 records in the last 180 days details
References
Impacted products
Vendor Product Version
SolarWinds Observability Self-Hosted Affected: 0 , < 2026.2.3 (custom)
Create a notification for this product.
Credits
Kai Huang from Armadin
Show details on NVD website
To clipboard 

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CVE-2026-28277 (GCVE-0-2026-28277)

Vulnerability from cvelistv5 – Published: 2026-03-05 19:10 – Updated: 2026-03-06 18:04
VLAI
Title
LangGraph: Unsafe msgpack deserialization in LangGraph checkpoint loading
Summary
LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync and async, via aiosqlite). In version 1.0.9 and prior, LangGraph checkpointers can load msgpack-encoded checkpoints that reconstruct Python objects during deserialization. If an attacker can modify checkpoint data in the backing store (for example, after a database compromise or other privileged write access to the persistence layer), they can potentially supply a crafted payload that triggers unsafe object reconstruction when the checkpoint is loaded. No known patch is public.
Severity
6.8 (Medium)
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-06 18:04 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7761 records in the last 180 days details
References
Impacted products
Vendor Product Version
langchain-ai langgraph Affected: <= 1.0.9
Create a notification for this product.
Show details on NVD website
To clipboard 

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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.

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