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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.

5328 vulnerabilities reference this CWE, most recent first.

CVE-2026-14534 (GCVE-0-2026-14534)

Vulnerability from cvelistv5 – Published: 2026-07-04 13:25 – Updated: 2026-07-06 14:59
VLAI
Title
Fickling check_safety() bypass via unlisted standard library modules (_posixsubprocess, site, atexit)
Summary
Trail of Bits fickling versions up to and including 0.1.10 do not include the Python standard library modules _posixsubprocess, site, and atexit in the UNSAFE_IMPORTS denylist (fickle.py). Because these modules are absent from the denylist, fickling's check_safety() function returns LIKELY_SAFE with zero findings for pickle payloads that invoke dangerous functions including _posixsubprocess.fork_exec (C-level process spawner capable of executing arbitrary binaries), site.execsitecustomize (executes arbitrary site customization code), and atexit._run_exitfuncs (triggers all registered exit handler callbacks). The fickling.load() API chains check_safety() into pickle.loads() as an explicit security gate; a LIKELY_SAFE verdict causes the payload to be deserialized and executed. This shares the same root cause as CVE-2026-22607 (cProfile), CVE-2025-67748 (pty), and CVE-2025-67747 (marshal/types). OvertlyBadEvals does not flag these modules because they are standard library imports. UnsafeImports does not flag them because they are not in the denylist. The UnusedVariables heuristic is defeated by the SETITEMS opcode pattern.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 2026-07-06 14:59 UTC
CWE
  • CWE-184 - Incomplete List of Disallowed Inputs
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
trailofbits fickling Affected: 0 , ≤ 0.1.10 (custom)
Unaffected: 0.1.11 (custom)
Create a notification for this product.
Date Public
2026-06-28 00:08
Credits
Christopher Aziz (Bombadil Systems LLC)
Show details on NVD website
To clipboard 

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CVE-2026-14512 (GCVE-0-2026-14512)

Vulnerability from cvelistv5 – Published: 2026-07-28 20:50 – Updated: 2026-07-30 03:55
VLAI
Title
IBM WebSphere Application Server is affected by an unsafe deserialization and exposure of sensitive information
Summary
IBM WebSphere Application Server 9.0, and 8.5 traditional is vulnerable to pre-authentication unsafe deserialization which could allow a remote attacker to bypass authentication or execute arbitrary code.
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: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-29 00:00 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
URL Tags
https://www.ibm.com/support/pages/node/7281649 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM WebSphere Application Server Affected: 9.0
Affected: 8.5
    cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-14265 (GCVE-0-2026-14265)

Vulnerability from cvelistv5 – Published: 2026-07-01 19:34 – Updated: 2026-07-02 15:54
VLAI
Title
RCE via Deserialization in AWS Advanced JDBC Wrapper
Summary
Deserialization of untrusted data in the RemoteQueryCachePlugin in Amazon Web Services AWS Advanced JDBC Wrapper 3.3.0 through 4.0.0 might allow an actor with write access to the shared cache infrastructure to execute arbitrary code on application servers that read cached query results via a crafted serialized Java object. The RemoteQueryCachePlugin uses ObjectInputStream without class filtering when deserializing cached query results from Redis or Valkey, enabling gadget chain execution when cache entries are poisoned. We recommend upgrading to AWS Advanced JDBC Wrapper version 4.0.1 or later.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.7 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/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 2026-07-02 15:27 UTC
CWE
  • CWE-502 - Deserialization of untrusted data
Assigner
References
Impacted products
Vendor Product Version
AWS AWS Advanced JDBC Wrapper Affected: 3.3.0 , ≤ 4.0.0 (custom)
    cpe:2.3:a:aws:aws_advanced_jdbc_wrapper:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-13759 (GCVE-0-2026-13759)

Vulnerability from cvelistv5 – Published: 2026-06-30 19:24 – Updated: 2026-07-03 03:56
VLAI
Title
IBM WebSphere eXtreme Scale is affected by Insecure Deserilization
Summary
IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 ships three ObjectInputStream subclasses (WsObjectInputStream, ObjectStreamPool$ReusableInputStream, ObjectInputStreamResolver) that install no JEP-290 class filter; when Coherence is on the classpath, multiple RCE gadget chains including RemoteConstructor.readResolve and PriorityQueue/ExtractorComparator are confirmed working, allowing a post-login attacker who can write a session attribute or a LAN-adjacent attacker on the grid replication wire to execute arbitrary code on peer WAS JVMs
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:H/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 2026-07-02 00:00 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
URL Tags
https://www.ibm.com/support/pages/node/7278595 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM WebSphere Extreme Scale Affected: 8.6.1.0 , ≤ 8.6.1.6 (semver)
    cpe:2.3:a:ibm:websphere_extreme_scale:8.6.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:websphere_extreme_scale:8.6.1.6:*:*:*:*:*:*:*
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Show details on NVD website
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CVE-2026-13371 (GCVE-0-2026-13371)

Vulnerability from cvelistv5 – Published: 2026-07-02 23:04 – Updated: 2026-08-27 22:58
VLAI
Title
WatchGuard Firebox Management Web UI Denial of Service via Unsafe Deserialization
Summary
An authenticated administrator can trigger a denial-of-service condition in the Fireware Management Web UI by sending malformed or crafted data to the put_data endpoint, which performs unsafe deserialization of the attacker-supplied input.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-06 18:04 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
WatchGuard Fireware OS Affected: 2025.1 , < 2026.2.1 (custom)
Affected: 12.0 , < 12.12.1 (custom)
Create a notification for this product.
WatchGuard Fireware OS Affected: 12.0 , < 12.11.9 (custom)
Create a notification for this product.
WatchGuard Fireware OS Affected: 12.0 , < 12.5.19 (custom)
Create a notification for this product.
Date Public
2026-07-02 23:04
Credits
Cody Sixteen
Show details on NVD website
To clipboard 

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CVE-2026-13293 (GCVE-0-2026-13293)

Vulnerability from cvelistv5 – Published: 2026-09-14 21:07 – Updated: 2026-09-16 03:56
VLAI
Title
IBM MQ Java messaging is vulnerable to remote code execution
Summary
IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0 through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 could allow a remote authenticated attacker to execute arbitrary code on the system due to the deserialization of untrusted data.
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 2026-09-15 00:00 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
URL Tags
https://www.ibm.com/support/pages/node/7284896 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM MQ Affected: 9.1.0.0 , ≤ 9.1.0.37 LTS (semver)
Affected: 9.2.0.0 , ≤ 9.2.0.43 LTS (semver)
Affected: 9.3.0.0 , ≤ 9.3.0.41 LTS (semver)
Affected: 9.3.0.0 , ≤ 9.3.5.1 CD (semver)
Affected: 9.4.0.0 , ≤ 9.4.0.25 LTS (semver)
Affected: 9.4.0.0 , ≤ 9.4.5.1 CD (semver)
Affected: 10.0.0.0
    cpe:2.3:a:ibm:mq:9.1.0.0:*:*:*:*:*:*:*
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    cpe:2.3:a:ibm:mq:10.0.0.0:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-13190 (GCVE-0-2026-13190)

Vulnerability from cvelistv5 – Published: 2026-07-22 13:43 – Updated: 2026-07-24 03:56
VLAI
Title
PersistenceFramework Unsafe Type Resolution Vulnerability in Telerik UI for ASP.NET AJAX
Summary
In Progress® Telerik® UI for AJAX prior to v2026.2.708, a deserialization vulnerability in the persistence utilities allows unsafe type instantiation from attacker-influenced persisted state, which can lead to remote code execution.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/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 2026-07-23 00:00 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
Progress Software Telerik UI for ASP.NET AJAX Affected: 2011.2.712 , < 2026.2.708 (custom)
Create a notification for this product.
Credits
Progress Telerik Security Team
Show details on NVD website
To clipboard 

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CVE-2026-13185 (GCVE-0-2026-13185)

Vulnerability from cvelistv5 – Published: 2026-07-22 13:38 – Updated: 2026-07-24 03:56
VLAI
Title
PersistenceFramework Cookie Deserialization Vulnerability in Telerik UI for ASP.NET AJAX
Summary
In Progress® Telerik® UI for AJAX prior to v2026.2.708, applications using cookie-based storage in RadPersistenceManager or RadDockLayout deserialize attacker-controlled cookie content, allowing unauthenticated remote code execution.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/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 2026-07-23 00:00 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
Progress Software Telerik UI for ASP.NET AJAX Affected: 2013.1.220 , < 2026.2.708 (custom)
Create a notification for this product.
Credits
Markus Wulftange with CODE WHITE GmbH
Show details on NVD website
To clipboard 

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CVE-2026-12787 (GCVE-0-2026-12787)

Vulnerability from cvelistv5 – Published: 2026-06-21 07:30 – Updated: 2026-06-22 17:18
VLAI
Title
zhilink 智互联(深圳)科技有限公司 ADP Application Developer Platform 应用开发者平台 testConnection Endpoint deserialization
Summary
A vulnerability was found in zhilink 智互联(深圳)科技有限公司 ADP Application Developer Platform 应用开发者平台 1.0.0. This affects an unknown part of the component testConnection Endpoint. The manipulation of the argument jdbcUrl results in deserialization. The attack may be performed from remote. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
6.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-22 17:18 UTC
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/372529 vdb-entrytechnical-description
https://vuldb.com/vuln/372529/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-12787 third-party-advisory
https://vuldb.com/submit/835654 third-party-advisory
https://ucn9h68n9289.feishu.cn/docx/I8uZdkZL3oSqB… exploit
Impacted products
Vendor Product Version
zhilink 智互联(深圳)科技有限公司 ADP Application Developer Platform 应用开发者平台 Affected: 1.0.0
    cpe:2.3:a:zhilink_:adp_application_developer_platform_:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
bigbrother_man (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-12745 (GCVE-0-2026-12745)

Vulnerability from cvelistv5 – Published: 2026-09-08 14:22 – Updated: 2026-09-09 04:26
VLAI
Summary
A Deserialization of Untrusted Data vulnerability in Ivanti Neurons for ITSM before 2026.2 allows a remote unauthenticated attacker to execute arbitrary code on the server.
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: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 00:00 UTC
CWE
  • CWE-502 - Deserialization of untrusted data
Assigner
References
Impacted products
Vendor Product Version
Ivanti Neurons for ITSM Unaffected: 2026.2
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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