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.

5669 vulnerabilities reference this CWE, most recent first.

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
Title
ktransformers Unauthenticated Pickle Deserialization RCE via ZMQ
Summary
ktransformers through 0.6.3, fixed in commit def0f93, contains an unauthenticated pickle deserialization vulnerability that allows remote attackers to execute arbitrary commands by sending crafted pickle payloads to the SchedulerServer ZMQ ROUTER socket bound to all interfaces. Attackers can exploit malicious __reduce__ methods embedded in crafted pickle payloads to execute arbitrary shell commands as the server process.
Severity
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
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 2026-07-21 12:42 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
kvcache-ai ktransformers Affected: 0 , ≤ 0.6.3 (semver)
Unaffected: def0f9313d6e063b5c5ccdfa1f6707f7a40dfdca (git)
    cpe:2.3:a:kvcache-ai:ktransformers:*:*:*:*:*:*:*:*
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Date Public
2026-07-13 00:00
Credits
George Chen
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CVE-2026-63630 (GCVE-0-2026-63630)

Vulnerability from cvelistv5 – Published: 2026-09-24 15:33 – Updated: 2026-09-29 02:49
VLAI
Title
BentoPDF: Workflow Import Allows Unvalidated TSA URL Leading to PDF Hash Exfiltration via RFC 3161 Requests
Summary
BentoPDF is a client-side PDF toolkit that is self hostable. In 2.8.6 and earlier, deserializeWorkflow() accepts the Timestamp node's tsaUrl control from imported JSON without schema or destination validation. When a user imports the crafted workflow and runs it against a PDF, timestampPdf() sends an RFC 3161 TimeStampReq containing the PDF's SHA-256 MessageImprint to the attacker-selected endpoint. The default self-hosted configuration does not set VITE_CORS_PROXY_URL, so the request bypasses the proxy's ALLOWED_TSA_HOSTS checks and is sent directly. The disclosed digest can confirm that a document matches a known file and can correlate the same document across users without revealing its contents. This vulnerability is fixed in 2.8.7.
Severity
3.4 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 02:48 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
  • CWE-201 - Insertion of Sensitive Information Into Sent Data
Assigner
References
Impacted products
Vendor Product Version
alam00000 bentopdf Affected: < 2.8.7
Create a notification for this product.
Show details on NVD website
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CVE-2026-63516 (GCVE-0-2026-63516)

Vulnerability from cvelistv5 – Published: 2026-08-11 17:03 – Updated: 2026-10-08 18:09
VLAI
Title
Microsoft SharePoint Server Spoofing Vulnerability
Summary
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 15:05 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Date Public
2026-08-11 14:00
Show details on NVD website
To clipboard 

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CVE-2026-63514 (GCVE-0-2026-63514)

Vulnerability from cvelistv5 – Published: 2026-08-11 17:03 – Updated: 2026-10-08 18:09
VLAI
Title
Microsoft SharePoint Server Remote Code Execution Vulnerability
Summary
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 03:58 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Date Public
2026-08-11 14:00
Show details on NVD website
To clipboard 

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CVE-2026-62997 (GCVE-0-2026-62997)

Vulnerability from cvelistv5 – Published: 2026-09-16 20:48 – Updated: 2026-09-17 14:55
VLAI
Title
Kedro-Datasets: Remote code execution in experimental `PyTorchDataset` via unsafe `torch.load`
Summary
Kedro-Datasets provides data connectors for Kedro. From version 5.0.0 until 9.5.0, kedro_datasets_experimental.pytorch.PyTorchDataset in kedro-datasets loads .pt model files with torch.load without enforcing weights_only=True, and user-supplied load_args are silently dropped. On PyTorch versions earlier than 2.6, a malicious pickle-backed model from an attacker-influenced shared registry, downloaded checkpoint, or partitioned external source can execute arbitrary code when a Kedro pipeline loads it. The issue affects only the opt-in kedro_datasets_experimental component and does not affect users who load only trusted files. This issue is fixed in version 9.5.0.
Severity
7.7 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/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 2026-09-17 14:55 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
kedro-org kedro-plugins Affected: >= 5.0.0, < 9.5.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-62912 (GCVE-0-2026-62912)

Vulnerability from cvelistv5 – Published: 2026-08-11 17:04 – Updated: 2026-10-08 18:11
VLAI
Title
Microsoft Exchange Server Denial of Service Vulnerability
Summary
Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to deny service over a network.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 13:26 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Date Public
2026-08-11 14:00
Show details on NVD website
To clipboard 

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CVE-2026-62263 (GCVE-0-2026-62263)

Vulnerability from cvelistv5 – Published: 2026-09-15 09:52 – Updated: 2026-09-15 13:53
VLAI
Title
OpenAM: WebAuthn Java deserialization RCE via ObjectInputFilter depth>1 bypass
Summary
Open Access Management (OpenAM) is an access management solution. Prior to 16.1.2, WebAuthnAuthentication.deserialize applies an ObjectInputFilter that allows every serialized object at depth greater than 1 and therefore constrains only an AuthenticatorImpl root object. A pre-authentication attacker can supply a userHandle whose serialized graph has a valid AuthenticatorImpl root and a nested gadget class, causing readObject or readResolve execution before the cast and assertion verification when a usable gadget is on the classpath. This bypasses the incomplete remediation for the earlier WebAuthn deserialization vulnerability. This issue is fixed in version 16.1.2.
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 · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 13:26 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-62130 (GCVE-0-2026-62130)

Vulnerability from cvelistv5 – Published: 2026-10-10 19:36 – Updated: 2026-10-11 12:13
VLAI
Title
WordPress WooCommerce Multilingual & Multicurrency plugin <= 5.5.8 - PHP Object Injection vulnerability
Summary
Shop manager PHP Object Injection in WooCommerce Multilingual & Multicurrency <= 5.5.8 versions.
Severity
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:H/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 2026-10-11 11:56 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Credits
Ananda Dhakal (Patchstack) | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-62125 (GCVE-0-2026-62125)

Vulnerability from cvelistv5 – Published: 2026-10-10 19:36 – Updated: 2026-10-11 11:53
VLAI
Title
WordPress Asia Garden theme <= 1.3.1 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Asia Garden <= 1.3.1 versions.
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 2026-10-11 11:49 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
ThemeREX Asia Garden Affected: n/a , ≤ 1.3.1 (custom)
Create a notification for this product.
Credits
johska | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-62124 (GCVE-0-2026-62124)

Vulnerability from cvelistv5 – Published: 2026-10-10 19:36 – Updated: 2026-10-11 11:53
VLAI
Title
WordPress N7 | Golf Club Sports & Events theme <= 2.21 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in N7 | Golf Club Sports & Events <= 2.21 versions.
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 2026-10-11 11:49 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
ThemeREX N7 | Golf Club Sports & Events Affected: n/a , ≤ 2.21 (custom)
Create a notification for this product.
Credits
johska | Patchstack Bug Bounty Program
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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