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.
4870 vulnerabilities reference this CWE, most recent first.
CVE-2026-69098 (GCVE-0-2026-69098)
Vulnerability from cvelistv5 – Published: 2026-08-04 15:15 – Updated: 2026-08-04 15:15 X_Open Source
VLAI
EPSS
VEX
Title
kotaemon 0.12.0 Unauthenticated Remote Code Execution via Insecure Deserialization
Summary
kotaemon through 0.12.0 contains an insecure deserialization vulnerability in the check_connection endpoint that allows unauthenticated attackers to instantiate arbitrary Python classes by supplying crafted YAML/JSON input with a __type__ field. Attackers can exploit this to override the __type__ field with subprocess.check_output and arbitrary arguments, achieving remote code execution with application process privileges.
Severity
9.8 (Critical)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/Cinnamon/kotaemon/issues/844 | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/kotaemon-una… | third-party-advisory |
Impacted products
Date Public
2026-06-29 00:00
Credits
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CVE-2026-68771 (GCVE-0-2026-68771)
Vulnerability from cvelistv5 – Published: 2026-07-31 21:16 – Updated: 2026-08-03 17:08
VLAI
EPSS
VEX
Title
ComfyUI 0.23.0 Unauthenticated RCE via LoadTrainingDataset Pickle Deserialization
Summary
ComfyUI v0.23.0 contains an unsafe deserialization vulnerability in the LoadTrainingDataset node that allows unauthenticated remote attackers to execute arbitrary Python code by uploading a crafted pickle file and triggering its deserialization. Attackers can upload a malicious shard_*.pkl file via the unauthenticated POST /upload/image endpoint and then queue a workflow graph via POST /prompt referencing the uploaded file, causing torch.load to deserialize the attacker-controlled pickle payload using __reduce__ and execute arbitrary commands as the ComfyUI process user.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/Comfy-Org/ComfyUI/pull/14543 | vendor-advisory |
| https://github.com/Comfy-Org/ComfyUI | product |
| https://github.com/Comfy-Org/ComfyUI/commit/94ee4… | patch |
| https://www.vulncheck.com/advisories/comfyui-unau… | third-party-advisory |
Impacted products
Date Public
2026-07-30 00:00
Credits
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CVE-2026-66713 (GCVE-0-2026-66713)
Vulnerability from cvelistv5 – Published: 2026-07-28 13:44 – Updated: 2026-07-29 03:55
VLAI
EPSS
VEX
Title
Apache Axis2/Java: deserialization of untrusted Data
Summary
Deserialization of Untrusted Data (CWE-502) in the Tribes-based clustering component
in Apache Software Foundation Apache Axis2/Java through 2.0.0 on Apache Tomcat
(only when Tribes clustering is enabled, which is off by default) allows an
unauthenticated remote attacker with network access to the clustering port to
execute arbitrary code via a crafted serialized Java object delivered to the cluster
channel and deserialized in
org.apache.axis2.clustering.tribes.Axis2ChannelListener#messageReceived. Users are
recommended to upgrade to version 2.0.1, which fixes this issue by removing the
clustering feature entirely.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
3 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Axis2/Java |
Affected:
0 , ≤ 2.0.0
(semver)
|
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CVE-2026-65883 (GCVE-0-2026-65883)
Vulnerability from cvelistv5 – Published: 2026-07-29 09:34 – Updated: 2026-07-29 14:39
VLAI
EPSS
VEX
Title
Joomla Extension - aimy-extensions.com - RCE via PHP object injection in Aimy Captcha-Less Form Guard 18.0 - 20.0
Summary
Joomla Extension - aimy-extensions.com - RCE via PHP object injection in Aimy Captcha-Less Form Guard 18.0 - 20.0 - A forged clfgd field allows PHP objection injection and thereby remote code execution.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.aimy-extensions.com/joomla/captcha-le… | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| aimy-extensions.com | Aimy Captcha-Less Form Guard plugin for Joomla |
Affected:
18.0-20.0
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CVE-2026-65617 (GCVE-0-2026-65617)
Vulnerability from cvelistv5 – Published: 2026-07-27 19:37 – Updated: 2026-07-27 19:59
VLAI
EPSS
VEX
Title
Potential remote code execution on an Artifactory package service container.
Summary
A deserialization weakness in JFrog Artifactory package handling could allow a low-privileged user to impact confidentiality, integrity, and availability under specific repository conditions.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://docs.jfrog.com/releases/docs/jfrog-securi… | vendor-advisory |
| https://docs.jfrog.com/releases/docs/artifactory-… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jfrog | artifactory |
Affected:
0 , < 7.111.18
(custom)
Affected: 7.117.0 , < 7.117.25 (custom) Affected: 7.125.0 , < 7.125.18 (custom) Affected: 7.133.0 , < 7.133.27 (custom) Affected: 7.146.0 , < 7.146.34 (custom) Affected: 7.161.0 , < 7.161.15 (custom) |
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CVE-2026-65497 (GCVE-0-2026-65497)
Vulnerability from cvelistv5 – Published: 2026-07-23 11:19 – Updated: 2026-07-23 15:08
VLAI
EPSS
VEX
Title
WordPress Complianz plugin <= 7.5.0 - PHP Object Injection vulnerability
Summary
Administrator PHP Object Injection in Complianz <= 7.5.0 versions.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
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-2026-65493 (GCVE-0-2026-65493)
Vulnerability from cvelistv5 – Published: 2026-07-23 11:18 – Updated: 2026-07-23 14:51
VLAI
EPSS
VEX
Title
WordPress Dokan Pro plugin <= 5.0.2 - PHP Object Injection vulnerability
Summary
Subscriber PHP Object Injection in Dokan Pro <= 5.0.2 versions.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
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| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
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CVE-2026-64608 (GCVE-0-2026-64608)
Vulnerability from cvelistv5 – Published: 2026-07-21 09:34 – Updated: 2026-07-21 18:28
VLAI
EPSS
VEX
Title
Apache Fory: Heap type confusion and out-of-bounds read/write in C++ compatible-mode field-skip paths
Summary
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Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
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| Apache Software Foundation | Apache Fory |
Affected:
0.14.0 , < 1.4.0
(semver)
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CVE-2026-64606 (GCVE-0-2026-64606)
Vulnerability from cvelistv5 – Published: 2026-07-21 10:43 – Updated: 2026-07-21 18:28
VLAI
EPSS
VEX
Title
Apache Fory, Apache Fory: Class-registration bypass through an auto-admitted SerializedLambda capturing interface
Summary
Deserialization of untrusted data vulnerability that may allow class-registration checks to be bypassed during Java lambda deserialization. Only lambda capture class is affected
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Users are recommended to upgrade to version 1.4.0, which fixes the issue.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
2 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Fory |
Affected:
0.11.0 , < 1.4.0
(semver)
|
|
| Apache Software Foundation | Apache Fory |
Affected:
0.5.0 , < 0.11.0
(semver)
|
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CVE-2026-63767 (GCVE-0-2026-63767)
Vulnerability from cvelistv5 – Published: 2026-07-20 19:13 – Updated: 2026-07-21 12:42 X_Open Source
VLAI
EPSS
VEX
Title
ktransformers Unauthenticated Pickle Deserialization RCE via ZMQ
Summary
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Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/kvcache-ai/ktransformers/issues/2087 | technical-descriptionexploitissue-tracking |
| https://github.com/kvcache-ai/ktransformers/pull/2091 | issue-trackingpatch |
| https://github.com/kvcache-ai/ktransformers/commi… | patch |
| https://www.vulncheck.com/advisories/ktransformer… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| kvcache-ai | ktransformers |
Affected:
0 , ≤ 0.6.3
(semver)
Unaffected: def0f9313d6e063b5c5ccdfa1f6707f7a40dfdca (git) |
Date Public
2026-07-13 00:00
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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.