CWE-502

Deserialization of Untrusted Data

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

CVE-2026-27437 (GCVE-0-2026-27437)

Vulnerability from cvelistv5 – Published: 2026-03-05 05:54 – Updated: 2026-04-28 16:15
VLAI
Title
WordPress Tennis Club theme <= 1.2.3 - PHP Object Injection vulnerability
Summary
Deserialization of Untrusted Data vulnerability in ThemeREX Tennis Club tennis-sportclub allows Object Injection.This issue affects Tennis Club: from n/a through <= 1.2.3.
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 (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
ThemeREX Tennis Club Affected: 0 , ≤ 1.2.3 (custom)
Create a notification for this product.
Date Public
2026-04-01 16:05
Credits
Tran Nguyen Bao Khanh (VCI - VNPT Cyber Immunity) | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-27438 (GCVE-0-2026-27438)

Vulnerability from cvelistv5 – Published: 2026-03-05 05:54 – Updated: 2026-04-28 16:15
VLAI
Title
WordPress Kingler theme <= 1.7 - PHP Object Injection vulnerability
Summary
Deserialization of Untrusted Data vulnerability in ThemeREX Kingler kingler allows Object Injection.This issue affects Kingler: from n/a through <= 1.7.
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 (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
ThemeREX Kingler Affected: 0 , ≤ 1.7 (custom)
Create a notification for this product.
Date Public
2026-04-01 16:05
Credits
Tran Nguyen Bao Khanh (VCI - VNPT Cyber Immunity) | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-27439 (GCVE-0-2026-27439)

Vulnerability from cvelistv5 – Published: 2026-03-05 05:54 – Updated: 2026-04-28 16:15
VLAI
Title
WordPress Dentario theme <= 1.5 - PHP Object Injection vulnerability
Summary
Deserialization of Untrusted Data vulnerability in ThemeREX Dentario dentario allows Object Injection.This issue affects Dentario: from n/a through <= 1.5.
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 (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
ThemeREX Dentario Affected: 0 , ≤ 1.5 (custom)
Create a notification for this product.
Date Public
2026-04-01 16:05
Credits
Tran Nguyen Bao Khanh (VCI - VNPT Cyber Immunity) | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-27685 (GCVE-0-2026-27685)

Vulnerability from cvelistv5 – Published: 2026-03-10 00:18 – Updated: 2026-03-11 03:56
VLAI
Title
Insecure Deserialization in SAP NetWeaver Enterprise Portal Administration
Summary
SAP NetWeaver Enterprise Portal Administration is vulnerable if a privileged user uploads untrusted or malicious content that, upon deserialization, could result in a high impact on the confidentiality, integrity, and availability of the host system.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
sap
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-27749 (GCVE-0-2026-27749)

Vulnerability from cvelistv5 – Published: 2026-03-05 14:15 – Updated: 2026-04-01 14:38
VLAI
Title
Avira Internet Security System Speedup Insecure Deserialization
Summary
Avira Internet Security contains a deserialization of untrusted data vulnerability in the System Speedup component. The Avira.SystemSpeedup.RealTimeOptimizer.exe process, which runs with SYSTEM privileges, deserializes data from a file located in C:\\ProgramData using .NET BinaryFormatter without implementing input validation or deserialization safeguards. Because the file can be created or modified by a local user in default configurations, an attacker can supply a crafted serialized payload that is deserialized by the privileged process, resulting in arbitrary code execution as SYSTEM.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
Gen Digital Inc. Avira Internet Security Affected: 0 , ≤ 1.1.109.1990 (semver)
Unaffected: 1.1.114.3113 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-27776 (GCVE-0-2026-27776)

Vulnerability from cvelistv5 – Published: 2026-02-27 07:50 – Updated: 2026-03-06 18:48
VLAI
Summary
IM-LogicDesigner module of intra-mart Accel Platform contains insecure deserialization issue. This can be exploited only when IM-LogicDesigner is deployed on the system. Arbitrary code may be executed when some crafted file is imported by a user with the administrative privilege.
Severity
7.2 (High)
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
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 (v2.0.3)
CWE
  • CWE-502 - Deserialization of untrusted data
Assigner
References
Impacted products
Vendor Product Version
NTT DATA INTRAMART Corporation intra-mart Accel Platform Affected: 2017 Spring (8.0.4) through 2025 Autumn (8.0.27)
Create a notification for this product.
Show details on NVD website
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CVE-2026-27794 (GCVE-0-2026-27794)

Vulnerability from cvelistv5 – Published: 2026-02-25 16:53 – Updated: 2026-02-25 21:00
VLAI
Title
LangGraph: BaseCache Deserialization of Untrusted Data may lead to Remote Code Execution
Summary
LangGraph Checkpoint defines the base interface for LangGraph checkpointers. Prior to version 4.0.0, a Remote Code Execution vulnerability exists in LangGraph's caching layer when applications enable cache backends that inherit from `BaseCache` and opt nodes into caching via `CachePolicy`. Prior to `langgraph-checkpoint` 4.0.0, `BaseCache` defaults to `JsonPlusSerializer(pickle_fallback=True)`. When msgpack serialization fails, cached values can be deserialized via `pickle.loads(...)`. Caching is not enabled by default. Applications are affected only when the application explicitly enables a cache backend (for example by passing `cache=...` to `StateGraph.compile(...)` or otherwise configuring a `BaseCache` implementation), one or more nodes opt into caching via `CachePolicy`, and the attacker can write to the cache backend (for example a network-accessible Redis instance with weak/no auth, shared cache infrastructure reachable by other tenants/services, or a writable SQLite cache file). An attacker must be able to write attacker-controlled bytes into the cache backend such that the LangGraph process later reads and deserializes them. This typically requires write access to a networked cache (for example a network-accessible Redis instance with weak/no auth or shared cache infrastructure reachable by other tenants/services) or write access to local cache storage (for example a writable SQLite cache file via permissive file permissions or a shared writable volume). Because exploitation requires write access to the cache storage layer, this is a post-compromise / post-access escalation vector. LangGraph Checkpoint 4.0.0 patches the issue.
Severity
6.6 (Medium)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-27830 (GCVE-0-2026-27830)

Vulnerability from cvelistv5 – Published: 2026-02-26 00:45 – Updated: 2026-05-04 19:40
VLAI
Title
c3p0 vulnerable to Remote Code Execution via unsafe deserialization of userOverridesAsString property
Summary
c3p0, a JDBC Connection pooling library, is vulnerable to attack via maliciously crafted Java-serialized objects and `javax.naming.Reference` instances. Several c3p0 `ConnectionPoolDataSource` implementations have a property called `userOverridesAsString` which conceptually represents a `Map<String,Map<String,String>>`. Prior to v0.12.0, that property was maintained as a hex-encoded serialized object. Any attacker able to reset this property, on an existing `ConnectionPoolDataSource` or via maliciously crafted serialized objects or `javax.naming.Reference` instances could be tailored execute unexpected code on the application's `CLASSPATH`. The danger of this vulnerability was strongly magnified by vulnerabilities in c3p0's main dependency, mchange-commons-java. This library includes code that mirrors early implementations of JNDI functionality, including ungated support for remote `factoryClassLocation` values. Attackers could set c3p0's `userOverridesAsString` hex-encoded serialized objects that include objects "indirectly serialized" via JNDI references. Deserialization of those objects and dereferencing of the embedded `javax.naming.Reference` objects could provoke download and execution of malicious code from a remote `factoryClassLocation`. Although hazard presented by c3p0's vulnerabilites are exarcerbated by vulnerabilities in mchange-commons-java, use of Java-serialized-object hex as the format for a writable Java-Bean property, of objects that may be exposed across JNDI interfaces, represents a serious independent fragility. The `userOverridesAsString` property of c3p0 `ConnectionPoolDataSource` classes has been reimplemented to use a safe CSV-based format, rather than rely upon potentially dangerous Java object deserialization. c3p0-0.12.0+ and above depend upon mchange-commons-java 0.4.0+, which gates support for remote `factoryClassLocation` values by configuration parameters that default to restrictive values. c3p0 additionally enforces the new mchange-commons-java `com.mchange.v2.naming.nameGuardClassName` to prevent injection of unexpected, potentially remote JNDI names. There is no supported workaround for versions of c3p0 prior to 0.12.0.
Severity
8.9 (High)
CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
Impacted products
Vendor Product Version
swaldman c3p0 Affected: < 0.12.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-27971 (GCVE-0-2026-27971)

Vulnerability from cvelistv5 – Published: 2026-03-03 22:55 – Updated: 2026-03-04 16:05
VLAI
Title
Qwik affected by unauthenticated RCE via server$ Deserialization
Summary
Qwik is a performance focused javascript framework. qwik <=1.19.0 is vulnerable to RCE due to an unsafe deserialization vulnerability in the server$ RPC mechanism that allows any unauthenticated user to execute arbitrary code on the server with a single HTTP request. Affects any deployment where require() is available at runtime. This vulnerability is fixed in 1.19.1.
Severity
9.2 (Critical)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
QwikDev qwik Affected: < 1.19.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-28074 (GCVE-0-2026-28074)

Vulnerability from cvelistv5 – Published: 2026-03-05 05:54 – Updated: 2026-04-28 17:40
VLAI
Title
WordPress Pizza House theme <= 1.4.0 - PHP Object Injection vulnerability
Summary
Deserialization of Untrusted Data vulnerability in ThemeREX Pizza House pizzahouse allows Object Injection.This issue affects Pizza House: from n/a through <= 1.4.0.
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 (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
ThemeREX Pizza House Affected: 0 , ≤ 1.4.0 (custom)
Create a notification for this product.
Date Public
2026-04-01 16:05
Credits
Tran Nguyen Bao Khanh (VCI - VNPT Cyber Immunity) | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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Mitigation

Phases: Architecture and Design, Implementation

Description:

  • 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

Phase: Implementation

Description:

  • 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

Phase: Implementation

Description:

  • Explicitly define a final object() to prevent deserialization.
Mitigation

Phases: Architecture and Design, Implementation

Description:

  • 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

Phase: Implementation

Description:

  • 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

Phases: Architecture and Design, Implementation

Description:

  • 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 ID: MIT-29

Phase: Operation

Strategy: Firewall

Description:

  • 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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