Common Weakness Enumeration

CWE-502

Allowed

Deserialization 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-2026-46607 (GCVE-0-2026-46607)

Vulnerability from cvelistv5 – Published: 2026-06-25 18:04 – Updated: 2026-06-25 18:49
VLAI
Title
Glances: Insecure Pickle Deserialization in Version Cache Leads to Arbitrary Code Execution
Summary
Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.5, glances/outdated.py uses pickle.load() to read a version-check cache file stored at a predictable, world-accessible path (~/.cache/glances/glances-version.db or $XDG_CACHE_HOME/glances/glances-version.db). No integrity check, signature verification, or format validation is performed before deserialization. An attacker with write access to that path — through any of several realistic local or container-level scenarios — can plant a malicious pickle file and achieve arbitrary code execution as the OS user running Glances the next time it starts with version checking enabled (the default). This vulnerability is fixed in 4.5.5.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-25 18:49 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
References
Impacted products
Vendor Product Version
nicolargo glances Affected: < 4.5.5
Create a notification for this product.
Show details on NVD website

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CVE-2026-46590 (GCVE-0-2026-46590)

Vulnerability from cvelistv5 – Published: 2026-07-06 08:03 – Updated: 2026-07-06 19:16
VLAI
Title
Apache Camel: Camel-PQC: The HashiCorp Vault and AWS Secrets Manager key-lifecycle managers deserialize persisted key metadata with java.io.ObjectInputStream and no ObjectInputFilter (incomplete remediation of CVE-2026-40048)
Summary
Deserialization of Untrusted Data vulnerability in Apache Camel PQC component. The camel-pqc component persists post-quantum key metadata (KeyMetadata) through pluggable KeyLifecycleManager implementations. HashicorpVaultKeyLifecycleManager and AwsSecretsManagerKeyLifecycleManager read that metadata back from the configured secret backend by deserializing a Base64-wrapped value with a raw java.io.ObjectInputStream.readObject() and no ObjectInputFilter or class allow-list; the cast to KeyMetadata happens only after readObject() returns, so any readObject() side effects in a crafted object run before the type check. The same unfiltered legacy-migration read also remained in FileBasedKeyLifecycleManager (for the stored KeyPair and KeyMetadata). A principal who can write to the operator-controlled backend that holds these values - the HashiCorp Vault KV path, or the AWS Secrets Manager secret (requiring a Vault token or secretsmanager:PutSecretValue) - could store a crafted serialized object that is deserialized during normal key-lifecycle operations, potentially leading to code execution in the context of the application that manages the keys. This is an incomplete-remediation follow-on to CVE-2026-40048 (CAMEL-23200), which changed FileBasedKeyLifecycleManager to store metadata as JSON / PKCS#8 / X.509 but did not add an ObjectInputFilter, did not cover the Vault and AWS sibling managers, and left FileBasedKeyLifecycleManager's own legacy-migration deserialization unfiltered. This issue affects Apache Camel: from 4.18.0 before 4.18.3, from 4.19.0 before 4.21.0. Users are recommended to upgrade to version 4.21.0, which fixes the issue. If users are on the 4.18.x LTS releases stream, then they are suggested to upgrade to 4.18.3. For deployments that cannot upgrade immediately, restrict write access to the key backend so that only the application's own identity can write the camel-pqc secrets (least-privilege HashiCorp Vault policies and secretsmanager:PutSecretValue IAM), and keep the PQC key material in a backend separate from any data that less-trusted principals can write.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-06 19:15 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Camel Affected: 4.18.0 , < 4.18.3 (semver)
Affected: 4.19.0 , < 4.21.0 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-46386 (GCVE-0-2026-46386)

Vulnerability from cvelistv5 – Published: 2026-06-26 19:26 – Updated: 2026-06-29 13:23
VLAI
Title
OpenProject: Pre-authentication RCE in openproject/openproject Docker image via default `SECRET_KEY_BASE=OVERWRITE_ME` and `cookies_serializer = :marshal`
Summary
OpenProject is open-source, web-based project management software. Prior to , the official openproject/openproject Docker image ships ENV SECRET_KEY_BASE=OVERWRITE_ME as the default Rails master key. Combined with cookies_serializer = :marshal, this gives any logged-in user a deterministic Marshal-deserialization path reachable via the /my/two_factor_devices cookie reader This vulnerability is fixed in .
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 13:23 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
  • CWE-798 - Use of Hard-coded Credentials
  • CWE-1188 - Insecure Default Initialization of Resource
  • CWE-1392 - Use of Default Credentials
References
Impacted products
Vendor Product Version
opf openproject Affected: >= 8.3.0, < 17.2.4
Affected: >= 17.3.0, < 17.3.2
Create a notification for this product.
Show details on NVD website

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CVE-2026-45659 (GCVE-0-2026-45659)

Vulnerability from cvelistv5 – Published: 2026-05-22 22:04 – Updated: 2026-08-11 03:55
VLAI
Title
Microsoft SharePoint Remote Code Execution Vulnerability
Summary
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-26 00:00 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
References
Impacted products
Date Public
2026-05-21 14:00
Show details on NVD website

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CVE-2026-45484 (GCVE-0-2026-45484)

Vulnerability from cvelistv5 – Published: 2026-06-09 17:05 – Updated: 2026-08-25 22:44
VLAI
Title
Microsoft SharePoint Elevation of Privilege Vulnerability
Summary
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 03:56 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
References
Impacted products
Date Public
2026-06-09 14:00
Show details on NVD website

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CVE-2026-45360 (GCVE-0-2026-45360)

Vulnerability from cvelistv5 – Published: 2026-06-01 07:48 – Updated: 2026-06-02 15:48
VLAI
Title
Apache Airflow: Arbitrary import in custom deadline-reference deserialization
Summary
Apache Airflow's scheduler-side deadline-reference decoder (`SerializedCustomReference.deserialize_reference`) imported and dispatched arbitrary class paths drawn from DAG-author-controlled serialized state without an allowlist or plugin-registry gate. A DAG author whose code reaches the scheduler — the default on single-host deployments where the DAG bundle is importable from the scheduler process — could embed a custom `DeadlineReference` whose serialized form named an attacker-controlled module path, causing the scheduler to `import_string(...)` and instantiate that class with a live SQLAlchemy session attached. Affects deployments where DAG-author code is less trusted than the scheduler process. Users are advised to upgrade to `apache-airflow` 3.2.2 or later.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-02 15:48 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Impacted products
Vendor Product Version
Apache Software Foundation Apache Airflow Affected: 0 , < 3.2.2 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-45247 (GCVE-0-2026-45247)

Vulnerability from cvelistv5 – Published: 2026-05-26 14:15 – Updated: 2026-06-04 03:55
VLAI
Title
Mirasvit Cache Warmer for Magento < 1.11.12 PHP Object Injection
Summary
Mirasvit Full Page Cache Warmer for Magento 2 before version 1.11.12 contains a PHP object injection vulnerability that allows unauthenticated attackers to achieve remote code execution by supplying a crafted serialized PHP object in the CacheWarmer cookie. Attackers can exploit the unrestricted call to PHP's native unserialize() function combined with gadget chains available in Magento and its dependencies to execute arbitrary code on the server.
SSVC
Exploitation: active Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-03 00:00 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Impacted products
Vendor Product Version
Mirasvit Full Page Cache Warmer for Magento 2 Affected: 0 , < 1.11.12 (semver)
Create a notification for this product.
Date Public
2026-05-25 00:00
Credits
Show details on NVD website

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CVE-2026-45162 (GCVE-0-2026-45162)

Vulnerability from cvelistv5 – Published: 2026-07-17 18:50 – Updated: 2026-07-17 23:15
VLAI
Title
Pimcore: Unsafe PHP Deserialization in Multiple Locations Without allowed_classes Restriction
Summary
Pimcore is an Open Source Data & Experience Management Platform. Prior to 11.5.17 (LTS) and 12.3.7, multiple Pimcore locations call PHP's unserialize() on data from database columns and filesystem files without the allowed_classes restriction, including lib/Tool/Authentication.php, models/Site/Dao.php, models/DataObject/ClassDefinition/CustomLayout/Dao.php, models/Tool/TmpStore/Dao.php, models/Asset/WebDAV/Service.php, and admin-ui-classic-bundle/src/Helper/Dashboard.php, enabling object injection and remote code execution if an attacker can control the serialized data source. This issue is fixed in versions 11.5.17 (LTS) and 12.3.7.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-17 20:17 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Impacted products
Vendor Product Version
pimcore pimcore Affected: < 11.5.17
Affected: >= 12.0.0, < 12.3.7
Create a notification for this product.
Show details on NVD website

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CVE-2026-45134 (GCVE-0-2026-45134)

Vulnerability from cvelistv5 – Published: 2026-05-27 19:35 – Updated: 2026-06-02 18:13
VLAI
Title
LangSmith Client SDK: Public prompt pull deserializes untrusted manifests without trust boundary warning
Summary
LangSmith Client SDKs provide SDK's for interacting with the LangSmith platform. Prior to LangSmith SDK Python 0.8.0 and JS/TS 0.6.0, the LangSmith SDK's prompt pull methods (pull_prompt / pull_prompt_commit in Python, pullPrompt / pullPromptCommit in JS/TS) fetch and deserialize prompt manifests from the LangSmith Hub. These manifests may contain serialized LangChain objects and model configuration that affect runtime behavior. When pulling a public prompt by owner/name identifier, the manifest content is controlled by an external party, but prior versions of the SDK did not distinguish this from pulling a prompt within the caller's own organization. This vulnerability is fixed in LangSmith SDK Python 0.8.0 and JS/TS 0.6.0.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-02 18:13 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
References
Impacted products
Vendor Product Version
langchain-ai langsmith-sdk Affected: < 0.8.0
Affected: < 0.6.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-45077 (GCVE-0-2026-45077)

Vulnerability from cvelistv5 – Published: 2026-07-14 17:46 – Updated: 2026-07-14 18:24
VLAI
Title
Symfony: Unauthenticated PHP Object Deserialization in MonologBridge server:log Listener
Summary
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, the server:log listener (Symfony\Bridge\Monolog\Command\ServerLogCommand) binds to 0.0.0.0:9911 by default and processes each received frame with unserialize(base64_decode($message)) without authentication, integrity checks, or an allowed_classes allowlist, allowing any reachable host to submit attacker-chosen serialized PHP payloads that can crash the listener and may trigger object-injection gadget effects. This issue is fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-14 18:24 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
  • CWE-668 - Exposure of Resource to Wrong Sphere
Impacted products
Vendor Product Version
symfony symfony Affected: < 5.4.52
Affected: >= 6.0.0-BETA1, < 6.4.40
Affected: >= 7.0.0-BETA1, < 7.4.12
Affected: >= 8.0.0-BETA1, < 8.0.12
Create a notification for this product.
symfony monolog-bridge Affected: < 5.4.52
Affected: >= 6.0.0-BETA1, < 6.4.40
Affected: >= 7.0.0-BETA1, < 7.4.12
Affected: >= 8.0.0-BETA1, < 8.0.12
Create a notification for this product.
Show details on NVD website

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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.