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.
5215 vulnerabilities reference this CWE, most recent first.
CVE-2026-54118 (GCVE-0-2026-54118)
Vulnerability from cvelistv5 – Published: 2026-07-14 17:05 – Updated: 2026-09-04 22:12
VLAI
EPSS
VEX
Title
Microsoft SQL Server Remote Code Execution Vulnerability
Summary
Deserialization of untrusted data in SQL Server allows an unauthorized attacker to execute code over a network.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-15 04:00 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
10 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Microsoft SQL Server 2016 Service Pack 3 (GDR) |
Affected:
13.0.0 , < 13.0.6500.1
(custom)
|
|
| Microsoft | Microsoft SQL Server 2016 Service Pack 3 Azure Connect Feature Pack |
Affected:
13.0.0 , < 13.0.7095.1
(custom)
|
|
| Microsoft | Microsoft SQL Server 2017 (CU 31) |
Affected:
14.0.0 , < 14.0.3540.1
(custom)
|
|
| Microsoft | Microsoft SQL Server 2017 (GDR) |
Affected:
14.0.0 , < 14.0.2120.1
(custom)
|
|
| Microsoft | Microsoft SQL Server 2019 (CU 32) |
Affected:
15.0.0.0 , < 15.0.4480.2
(custom)
|
|
| Microsoft | Microsoft SQL Server 2019 (GDR) |
Affected:
15.0.0 , < 15.0.2180.2
(custom)
|
|
| Microsoft | Microsoft SQL Server 2022 (GDR) |
Affected:
16.0.0 , < 16.0.1190.2
(custom)
|
|
| Microsoft | Microsoft SQL Server 2022 for x64-based Systems (CU 25) |
Affected:
16.0.4260.1 , < 16.0.4262.2
(custom)
|
|
| Microsoft | Microsoft SQL Server 2025 (CU 6) |
Affected:
17.0.4060.2 , < 17.0.4060.2
(custom)
|
|
| Microsoft | Microsoft SQL Server 2025 for x64-based Systems (GDR) |
Affected:
17.0.1050.2 , < 17.0.1125.2
(custom)
|
Date Public
2026-07-14 14:00
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CVE-2026-54117 (GCVE-0-2026-54117)
Vulnerability from cvelistv5 – Published: 2026-07-14 17:05 – Updated: 2026-09-04 22:12
VLAI
EPSS
VEX
Title
Microsoft SQL Server Remote Code Execution Vulnerability
Summary
Deserialization of untrusted data in SQL Server allows an unauthorized attacker to execute code over a network.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-14 00:00 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Microsoft SQL Server 2025 (CU 6) |
Affected:
17.0.4060.2 , < 17.0.4060.2
(custom)
|
|
| Microsoft | Microsoft SQL Server 2025 for x64-based Systems (GDR) |
Affected:
17.0.1050.2 , < 17.0.1125.2
(custom)
|
Date Public
2026-07-14 14:00
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CVE-2026-54071 (GCVE-0-2026-54071)
Vulnerability from cvelistv5 – Published: 2026-08-21 18:55 – Updated: 2026-08-21 21:43
VLAI
EPSS
VEX
Title
BabelDOC: Arbitrary Code Execution via CMap Pickle Deserialization in babeldoc/pdfminer/cmapdb.py
Summary
BabelDOC is a document translation tool. Prior to 0.6.3, BabelDOC's vendored PDF parser in babeldoc/pdfminer/cmapdb.py deserializes untrusted pickle data when CMapDB._load_data() loads CMap files. PDF-controlled Encoding or CMapName values and embedded PostScript usecmap operators can reach this sink after path separators are decoded, while _normalize_cmap_name() removes only a leading slash. Absolute paths or traversal sequences can escape the trusted CMap directories through os.path.join(), select an attacker-writable .pickle.gz file, and cause pickle.loads() to execute arbitrary Python code with the privileges of the BabelDOC process. This issue is fixed in version 0.6.3.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 21:00 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/funstory-ai/BabelDOC/security/… | x_refsource_CONFIRM |
| https://github.com/funstory-ai/BabelDOC/commit/28… | x_refsource_MISC |
| https://github.com/funstory-ai/BabelDOC/blob/main… | x_refsource_MISC |
| https://github.com/funstory-ai/BabelDOC/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| funstory-ai | BabelDOC |
Affected:
< 0.6.3
|
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CVE-2026-53874 (GCVE-0-2026-53874)
Vulnerability from cvelistv5 – Published: 2026-06-17 15:05 – Updated: 2026-06-23 02:00
VLAI
EPSS
VEX
Title
picklescan - Arbitrary Code Execution via Obfuscated eval Call
Summary
picklescan before 1.0.1 contains an unsafe deserialization vulnerability allowing unauthenticated users to execute arbitrary code by hiding eval calls nested under callable objects via getattr. Attackers can embed malicious code in pickle files that evades detection but executes when the pickle is loaded from untrusted sources.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-23 01:59 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/mmaitre314/picklescan/security… | vendor-advisory |
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1 product
| Vendor | Product | Version | |
|---|---|---|---|
| picklescan | picklescan |
Affected:
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(semver)
Unaffected: 1.0.1 (semver) cpe:2.3:a:mmaitre314:picklescan:*:*:*:*:*:*:*:* |
Date Public
2026-02-02 00:00
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CVE-2026-53805 (GCVE-0-2026-53805)
Vulnerability from cvelistv5 – Published: 2026-06-17 16:44 – Updated: 2026-07-14 21:33 X_Open Source
VLAI
EPSS
VEX
Title
NVIDIA SIL GEN3C Unauthenticated RCE via Pickle Deserialization in Inference API
Summary
NVIDIA Spatial Intelligence Lab's (SIL) GEN3C contains an unauthenticated remote code execution vulnerability in the inference API server where the /request-inference and /seed-model endpoints deserialize raw HTTP request bodies using Python's pickle.loads() without authentication or input validation. Attackers can supply a crafted payload containing a __reduce__ gadget to the inference API port to achieve remote code execution as the inference process.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-17 18:12 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/nv-tlabs/GEN3C/pull/62 | issue-tracking |
| https://github.com/nv-tlabs/GEN3C/pull/63 | issue-tracking |
| https://github.com/nv-tlabs/GEN3C/commit/db2ffe12… | patch |
| https://www.vulncheck.com/advisories/nvidia-sil-g… | third-party-advisory |
Impacted products
Date Public
2026-06-11 00:00
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CVE-2026-52777 (GCVE-0-2026-52777)
Vulnerability from cvelistv5 – Published: 2026-09-04 23:51 – Updated: 2026-09-04 23:51
VLAI
EPSS
VEX
Title
YesWiki: Authenticated PHP Object Injection in BazarImportAction via unserialize
Summary
YesWiki is a wiki system written in PHP. Prior to version 4.6.6, there is an authenticated PHP object injection vulnerability in BazarImportAction via unserialize. This issue has been patched in version 4.6.6.
Severity
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/YesWiki/yeswiki/security/advis… | x_refsource_CONFIRM |
| https://github.com/YesWiki/yeswiki/commit/8f70a8d… | x_refsource_MISC |
| https://github.com/YesWiki/yeswiki/releases/tag/v4.6.6 | x_refsource_MISC |
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CVE-2026-52751 (GCVE-0-2026-52751)
Vulnerability from cvelistv5 – Published: 2026-06-10 12:39 – Updated: 2026-07-14 21:33 X_Open Source
VLAI
EPSS
VEX
Title
Ghidra < 12.1 - Remote Code Execution via Unfiltered RMI Deserialization in Shared Project Connection
Summary
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Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 14:15 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/NationalSecurityAgency/ghidra/… | vendor-advisory |
| https://github.com/NationalSecurityAgency/ghidra/… | patch |
| https://www.vulncheck.com/advisories/ghidra-remot… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| nationalsecurityagency | ghidra |
Affected:
0 , < 12.1
(custom)
Unaffected: 12.1 (custom) cpe:2.3:a:nsa:ghidra:*:*:*:*:*:*:*:* |
Date Public
2026-05-14 00:00
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CVE-2026-52706 (GCVE-0-2026-52706)
Vulnerability from cvelistv5 – Published: 2026-06-17 09:51 – Updated: 2026-06-17 15:35
VLAI
EPSS
VEX
Title
WordPress JetEngine plugin <= 3.8.10 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in JetEngine <= 3.8.10 versions.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-17 15:20 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Jetimpex Inc. | JetEngine |
Affected:
n/a , ≤ 3.8.10
(custom)
|
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CVE-2026-50652 (GCVE-0-2026-50652)
Vulnerability from cvelistv5 – Published: 2026-07-14 17:05 – Updated: 2026-09-04 22:12
VLAI
EPSS
VEX
Title
Azure Active Directory Denial of Service Vulnerability
Summary
Deserialization of untrusted data in Azure Active Directory allows an unauthorized attacker to deny service over a network.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-14 17:49 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Azure Active Directory |
Affected:
2021 , < 5.7.1
(custom)
|
|
| Microsoft | Microsoft .NET Framework 3.5 |
Affected:
3.5.0 , < 2.0.50727.9182 & 3.0.30729.9168
(custom)
|
|
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 |
Affected:
4.7.0 , < 2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0
(custom)
|
|
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 |
Affected:
4.8.0 , < 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0
(custom)
|
|
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8.1 |
Affected:
4.8.1 , < 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0
(custom)
|
|
| Microsoft | Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 |
Affected:
4.7.0 , < 4.7.4143.0
(custom)
|
|
| Microsoft | Microsoft .NET Framework 4.8 |
Affected:
4.8.0 , < 4.8.4803.0
(custom)
|
|
| Microsoft | Microsoft .NET Framework 4.8.1 |
Affected:
4.8.0.0 , < 4.8.9340.0
(custom)
|
Date Public
2026-07-14 14:00
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CVE-2026-50649 (GCVE-0-2026-50649)
Vulnerability from cvelistv5 – Published: 2026-07-14 19:29 – Updated: 2026-09-04 22:15
VLAI
EPSS
VEX
Title
.NET Remote Code Execution Vulnerability
Summary
Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code locally.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-15 03:57 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
10 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | .NET 8.0 |
Affected:
8.0.0 , < 8.0.29
(custom)
|
|
| Microsoft | .NET 9.0 |
Affected:
9.0.0 , < 9.0.18
(custom)
|
|
| Microsoft | Microsoft .NET Framework 3.5 |
Affected:
3.5.0 , < 2.0.50727.9182 & 3.0.30729.9168
(custom)
|
|
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 |
Affected:
4.7.0 , < 2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0
(custom)
|
|
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 |
Affected:
4.8.0 , < 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0
(custom)
|
|
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8.1 |
Affected:
4.8.1 , < 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0
(custom)
|
|
| Microsoft | Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 |
Affected:
4.7.0 , < 4.7.4143.0
(custom)
|
|
| Microsoft | Microsoft .NET Framework 4.8 |
Affected:
4.8.0 , < 4.8.4803.0
(custom)
|
|
| Microsoft | Microsoft .NET Framework 4.8.1 |
Affected:
4.8.0.0 , < 4.8.9340.0
(custom)
|
|
| Microsoft | Microsoft Visual Studio 2026 version 18.7 |
Affected:
18.0 , < 18.7.4
(custom)
|
Date Public
2026-07-14 14:00
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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.