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.
5115 vulnerabilities reference this CWE, most recent first.
CVE-2026-76850 (GCVE-0-2026-76850)
Vulnerability from cvelistv5 – Published: 2026-08-19 21:41 – Updated: 2026-08-21 11:21
VLAI
EPSS
VEX
Title
LMDeploy Remote Code Execution via Unsafe Pickle Deserialization in the Disaggregated Serving Peer Connector
Summary
LMDeploy deserializes disaggregated-serving peer messages with pickle. The handle_zmq_recv coroutine in lmdeploy/pytorch/disagg/conn/engine_conn.py reads peer-to-peer cache-free requests with recv_pyobj(), which deserializes the received bytes with pickle.loads(), and the isinstance check against DistServeCacheFreeRequest runs only after deserialization has already completed. The peer that supplies those bytes is caller-controlled: p2p_connect passes remote_engine_endpoint_info.zmq_address from the request body to connect() on the ZMQ PULL socket, and the POST /distserve/p2p_initialize and /distserve/p2p_connect endpoints in lmdeploy/serve/openai/api_server.py apply no authentication unless the server is started with api_keys, which defaults to None. A remote attacker can direct an engine to pull from a ZMQ endpoint under their control and execute arbitrary code in the engine process. Deployments that do not enable disaggregated serving are not affected, because the receive loop is only started once the migration backend accepts the connection.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 14:08 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://github.com/InternLM/lmdeploy/issues/4804 | issue-tracking |
| https://github.com/InternLM/lmdeploy/commit/f05b4… | patch |
| https://github.com/InternLM/lmdeploy/blob/v0.15.0… | technical-description |
| https://github.com/InternLM/lmdeploy/blob/v0.15.0… | technical-description |
| https://github.com/InternLM/lmdeploy/releases/tag… | release-notes |
| https://github.com/InternLM/lmdeploy | product |
| https://www.vulncheck.com/advisories/lmdeploy-rem… | third-party-advisory |
Impacted products
Date Public
2026-07-29 00:00
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CVE-2026-76843 (GCVE-0-2026-76843)
Vulnerability from cvelistv5 – Published: 2026-08-24 13:12 – Updated: 2026-08-28 15:18
VLAI
EPSS
VEX
Title
Flair 0.15.0 and 0.15.1 Deserialization of Untrusted Data via ClusteringModel.load
Summary
The official Flair wheels for 0.15.0 and 0.15.1 still contain flair/models/clustering.py, whose ClusteringModel.load static method returns pickle.loads(joblib.load(str(model_file))) and so executes arbitrary Python while loading a model file. Loading a model supplied by an attacker therefore runs that attacker's code with the privileges of the loading process. This is the same sink and the same file as CVE-2024-10073, which records 0.15.0 as the fixed version on the basis that clustering support was dropped in that release; the module was removed from the documented API but remains present in the distributed artifact and reachable by importing flair.models.clustering directly, so the earlier record's fixed version does not hold for the shipped package.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-24 19:00 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/flairNLP/flair | product |
| https://github.com/flairNLP/flair/blob/v0.14.0/fl… | technical-description |
| https://pypi.org/project/flair/0.15.1/ | product |
| https://www.vulncheck.com/advisories/flair-and-de… | third-party-advisory |
Impacted products
Date Public
2026-08-07 00:00
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CVE-2026-76404 (GCVE-0-2026-76404)
Vulnerability from cvelistv5 – Published: 2026-08-19 21:35 – Updated: 2026-08-20 15:26
VLAI
EPSS
VEX
Title
Remote Code Execution (RCE) through Deserialization of Untrusted Data in Splunk MCP Server app
Summary
In Splunk MCP Server app versions below 1.2.1, a user who holds the "admin" Splunk role could execute arbitrary commands on the underlying operating system. The vulnerability is possible because of missing input validation in the app's credential management component, which deserializes stored data without checking whether the content is of the expected type.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 15:09 UTC
CWE
- CWE-502 - The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Splunk | Splunk MCP Server app |
Affected:
1.2 , < 1.2.1
(custom)
|
Date Public
2026-08-19 00:00
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CVE-2026-76395 (GCVE-0-2026-76395)
Vulnerability from cvelistv5 – Published: 2026-08-19 21:35 – Updated: 2026-08-26 19:51
VLAI
EPSS
VEX
Title
Remote Code Execution (RCE) through Deserialization of Untrusted Data in the Model Loading REST API in Splunk AI Toolkit
Summary
In Splunk AI Toolkit versions below 6.0.0, a user who holds the "power" Splunk role could execute arbitrary code on the Splunk server by loading a model file containing crafted sparse matrix data. The deserialization of untrusted data is possible because a model codec in Splunk AI Toolkit deserializes sparse matrix data without guarding against embedded pickle content. For more information see Troubleshoot the Splunk Machine Learning Toolkit (https://help.splunk.com/en/splunk-cloud-platform/apply-machine-learning/machine-learning-toolkit-user-guide/5.5.0/troubleshooting-mltk/troubleshoot-the-splunk-machine-learning-toolkit) in the Splunk documentation.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 19:42 UTC
CWE
- CWE-502 - The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Splunk | Splunk AI Toolkit |
Affected:
5.7 , < 6.0.0
(custom)
|
Date Public
2026-08-19 00:00
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CVE-2026-75987 (GCVE-0-2026-75987)
Vulnerability from cvelistv5 – Published: 2026-08-19 01:45 – Updated: 2026-08-21 19:24
VLAI
EPSS
VEX
Title
SPLWare esProc SocketData.java ObjectInputStream.readUnshared deserialization
Summary
A vulnerability was found in SPLWare esProc up to 20260507. This affects the function ObjectInputStream.readUnshared of the file src/main/java/com/scudata/parallel/SocketData.java. Performing a manipulation results in deserialization. Remote exploitation of the attack is possible.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 19:23 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/391906 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/391906/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-75987 | third-party-advisory |
| https://vuldb.com/submit/877849 | third-party-advisory |
| https://github.com/SPLWare/esProc/issues/67 | issue-tracking |
| https://github.com/SPLWare/esProc/ | product |
Impacted products
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CVE-2026-74012 (GCVE-0-2026-74012)
Vulnerability from cvelistv5 – Published: 2026-08-18 14:00 – Updated: 2026-08-20 18:20 X_Open Source
VLAI
EPSS
VEX
Title
WordPress TaxoPress plugin <= 3.51.0 - PHP Object Injection vulnerability
Summary
Deserialization of Untrusted Data vulnerability in TaxoPress allows Object Injection.
This issue affects TaxoPress: from n/a through 3.51.0.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 14:41 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
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CVE-2026-73993 (GCVE-0-2026-73993)
Vulnerability from cvelistv5 – Published: 2026-08-20 12:07 – Updated: 2026-08-20 16:27
VLAI
EPSS
VEX
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)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 16:00 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 | |
|---|---|---|---|
| Roxnor | FundEngine |
Affected:
n/a , ≤ 1.7.9
(custom)
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CVE-2026-73397 (GCVE-0-2026-73397)
Vulnerability from cvelistv5 – Published: 2026-08-18 14:00 – Updated: 2026-08-18 14:40
VLAI
EPSS
VEX
Title
WordPress Youzify plugin <= 1.3.7 - Deserialization of untrusted data vulnerability
Summary
Unauthenticated Deserialization of untrusted data in Youzify <= 1.3.7 versions.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 14:39 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
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CVE-2026-73389 (GCVE-0-2026-73389)
Vulnerability from cvelistv5 – Published: 2026-08-19 12:38 – Updated: 2026-08-20 15:57
VLAI
EPSS
VEX
Title
WordPress Kalles Addons plugin <= 1.0.6 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Kalles Addons <= 1.0.6 versions.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 15:30 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 | |
|---|---|---|---|
| The4 | Kalles Addons |
Affected:
n/a , ≤ 1.0.6
(custom)
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CVE-2026-73380 (GCVE-0-2026-73380)
Vulnerability from cvelistv5 – Published: 2026-08-18 14:00 – Updated: 2026-08-18 15:11
VLAI
EPSS
VEX
Title
WordPress Popup by Supsystic plugin <= 1.13.0 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Popup by Supsystic <= 1.13.0 versions.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 15:10 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 | |
|---|---|---|---|
| supsystic | Popup by Supsystic |
Affected:
n/a , ≤ 1.13.0
(custom)
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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.