Common Weakness Enumeration
CWE-502
AllowedDeserialization of Untrusted Data
Abstraction: Base · Status: Draft
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
5189 vulnerabilities reference this CWE, most recent first.
CVE-2026-32184 (GCVE-0-2026-32184)
Vulnerability from cvelistv5 – Published: 2026-04-14 16:57 – Updated: 2026-08-14 16:30
VLAI
EPSS
VEX
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
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
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
1 product
| 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:*:*:*:*:*:*:*:* |
Date Public
2026-04-14 14:00
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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
EPSS
VEX
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)
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
References
3 references
| URL | Tags |
|---|---|
| https://github.com/devcode-it/openstamanager/secu… | x_refsource_CONFIRM |
| https://github.com/devcode-it/openstamanager/comm… | x_refsource_MISC |
| https://github.com/devcode-it/openstamanager/rele… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| devcode-it | openstamanager |
Affected:
< 2.10.2
|
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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
EPSS
VEX
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
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
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/SuiteCRM/SuiteCRM-Core/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SuiteCRM | SuiteCRM-Core |
Affected:
< 8.9.3
|
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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
EPSS
VEX
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)
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
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/langchain-ai/langgraph/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langchain-ai | langgraph |
Affected:
<= 1.0.9
|
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CVE-2026-28220 (GCVE-0-2026-28220)
Vulnerability from cvelistv5 – Published: 2026-07-20 15:26 – Updated: 2026-07-20 17:30
VLAI
EPSS
VEX
Title
Wazuh cluster DAPI arbitrary callable deserialization and RBAC context injection allow a cluster peer to execute privileged functions on the master node
Summary
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 the shared cluster key, to make the master node deserialize an attacker-controlled callable and execute it under an attacker-controlled RBAC context. The cluster code in `framework/wazuh/core/cluster/common.py` deserializes JSON with `as_wazuh_object()`, which resolves any callable whose top-level package is wazuh or api (an overly broad allowlist controlled only by `ALLOWED_CALLABLES_PACKAGES`), and DAPI requests handled in framework/wazuh/core/cluster/dapi/dapi.py accept a client-supplied rbac_permissions value that `run_local()` applies as the global RBAC context, so supplying an rbac_mode of black causes authorization checks for expose_resources-protected functions to pass without any legitimate permission assignment. Combined, these allow privileged administrative actions on the master node such as arbitrary file writes under WAZUH_PATH, creation of new API users, and tampering with security.yaml, and can be chained into full manager compromise. This issue has been fixed in version 4.14.5.
Severity
8.4 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-20 17:30 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/wazuh/wazuh/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-28176 (GCVE-0-2026-28176)
Vulnerability from cvelistv5 – Published: 2026-08-13 13:36 – Updated: 2026-08-13 15:19
VLAI
EPSS
VEX
Title
WordPress Booking Activities plugin <= 1.18.4 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Booking Activities <= 1.18.4 versions.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 15:07 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Booking Activities Team | Booking Activities |
Affected:
n/a , ≤ 1.18.4
(custom)
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CVE-2026-28149 (GCVE-0-2026-28149)
Vulnerability from cvelistv5 – Published: 2026-08-13 13:36 – Updated: 2026-08-13 15:23
VLAI
EPSS
VEX
Title
WordPress Headless Single Sign On plugin <= 1.6 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Headless Single Sign On <= 1.6 versions.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 15:04 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| miniOrange | Headless Single Sign On |
Affected:
n/a , ≤ 1.6
(custom)
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CVE-2026-28139 (GCVE-0-2026-28139)
Vulnerability from cvelistv5 – Published: 2026-08-06 14:27 – Updated: 2026-08-06 14:46
VLAI
EPSS
VEX
Title
WordPress Ajax Search Lite plugin <= 4.14.4 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Ajax Search Lite <= 4.14.4 versions.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-06 14:46 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| wpdreams | Ajax Search Lite |
Affected:
n/a , ≤ 4.14.4
(custom)
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CVE-2026-28138 (GCVE-0-2026-28138)
Vulnerability from cvelistv5 – Published: 2026-02-26 08:33 – Updated: 2026-04-28 16:15
VLAI
EPSS
VEX
Title
WordPress uListing plugin <= 2.2.0 - PHP Object Injection vulnerability
Summary
Deserialization of Untrusted Data vulnerability in Stylemix uListing ulisting allows Object Injection.This issue affects uListing: from n/a through <= 2.2.0.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-26 14:35 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/Wordpress/Plugin/… | vdb-entry |
Date Public
2026-04-28 13:51
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CVE-2026-28105 (GCVE-0-2026-28105)
Vulnerability from cvelistv5 – Published: 2026-03-05 05:54 – Updated: 2026-04-28 17:44
VLAI
EPSS
VEX
Title
WordPress Good Energy theme <= 1.7.7 - PHP Object Injection vulnerability
Summary
Deserialization of Untrusted Data vulnerability in ThemeREX Good Energy goodenergy allows Object Injection.This issue affects Good Energy: from n/a through <= 1.7.7.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-05 17:05 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/Wordpress/Theme/g… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ThemeREX | Good Energy |
Affected:
0 , ≤ 1.7.7
(custom)
|
Date Public
2026-04-28 13:51
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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.