Common Weakness Enumeration

CWE-499

Weakness Allowed

Serializable Class Containing Sensitive Data

Abstraction: Variant · Status: Draft

API response cwe.mitre.org

The code contains a class with sensitive data, but the class does not explicitly deny serialization.

Mapping guidance

This CWE entry is at the Variant level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.

Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.

Relationships and members
ChildOf: CWE-668 · View CWE-1000
CanPrecede: CWE-200 · View CWE-1000
Modes of introduction
Implementation
Detection methods

Automated Static Analysis

Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)

Effectiveness: High

Content history
Submission: CLASP · 2006-07-19 · CWE Draft 3
Modification: Eric Dalci · Cigital · 2008-07-01 · CWE 1.0

updated Time_of_Introduction

Modification: CWE Content Team · MITRE · 2008-09-08 · CWE 1.0

updated Common_Consequences, Description, Relationships, Taxonomy_Mappings

Modification: CWE Content Team · MITRE · 2009-07-27 · CWE 1.5

updated Demonstrative_Examples

Modification: CWE Content Team · MITRE · 2011-06-01 · CWE 1.13

updated Common_Consequences, Relationships, Taxonomy_Mappings

Modification: CWE Content Team · MITRE · 2012-05-11 · CWE 2.2

updated Relationships, Taxonomy_Mappings

Modification: CWE Content Team · MITRE · 2012-10-30 · CWE 2.3

updated Demonstrative_Examples

Modification: CWE Content Team · MITRE · 2014-07-30 · CWE 2.8

updated Relationships, Taxonomy_Mappings

Modification: CWE Content Team · MITRE · 2017-11-08 · CWE 3.0

updated Relationships

Modification: CWE Content Team · MITRE · 2019-01-03 · CWE 3.2

updated Relationships, Taxonomy_Mappings

Modification: CWE Content Team · MITRE · 2020-02-24 · CWE 4.0

updated References, Relationships

Modification: CWE Content Team · MITRE · 2021-03-15 · CWE 4.4

updated Relationships

Modification: CWE Content Team · MITRE · 2023-04-27 · CWE 4.11

updated Detection_Factors, Relationships

Modification: CWE Content Team · MITRE · 2023-06-29 · CWE 4.12

updated Mapping_Notes

Modification: CWE Content Team · MITRE · 2025-12-11 · CWE 4.19

updated Weakness_Ordinalities

Modification: CWE Content Team · MITRE · 2026-10-28 · CWE 5.0

updated Common_Consequences, Description

2 vulnerabilities reference this CWE, most recent first.

CVE-2024-5657 (GCVE-0-2024-5657)

Vulnerability from cvelistv5 – Published: 2024-06-06 10:29 – Updated: 2025-09-03 07:13
VLAI
Title
CraftCMS Plugin - Two-Factor Authentication - Password Hash Disclosure
Summary
The CraftCMS plugin Two-Factor Authentication in versions 3.3.1, 3.3.2 and 3.3.3 discloses the password hash of the currently authenticated user after submitting a valid TOTP.
Severity
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-06 15:45 UTC
CWE
  • CWE-499 - Serializable Class Containing Sensitive Data
Assigner
sba-research CNA under the mitre root
CNA scorecard – unranked: 8 records in the last 180 days, 10 needed details
References
Impacted products
Vendor Product Version
Born05 CraftCMS Plugin - Two-Factor Authentication Affected: 3.3.1 , ≤ 3.3.3 (custom)
Create a notification for this product.
Credits
Fabian Funder (SBA Research) Jakob Pachmann (SBA Research)
Show details on NVD website
To clipboard 

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CVE-2022-39309 (GCVE-0-2022-39309)

Vulnerability from cvelistv5 – Published: 2022-10-14 00:00 – Updated: 2025-04-23 16:49
VLAI
Title
GoCD server secret encryption/decryption key leaked to agents during material serialization
Summary
GoCD is a continuous delivery server. GoCD helps you automate and streamline the build-test-release cycle for continuous delivery of your product. GoCD versions prior to 21.1.0 leak the symmetric key used to encrypt/decrypt any secure variables/secrets in GoCD configuration to authenticated agents. A malicious/compromised agent may then expose that key from memory, and potentially allow an attacker the ability to decrypt secrets intended for other agents/environments if they also are able to obtain access to encrypted configuration values from the GoCD server. This issue is fixed in GoCD version 21.1.0. There are currently no known workarounds.
Severity
4.9 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 13:56 UTC
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-499 - Serializable Class Containing Sensitive Data
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7763 records in the last 180 days details
References
Impacted products
Vendor Product Version
gocd gocd Affected: < 21.1.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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Mitigation
Implementation

In Java, explicitly define final writeObject() to prevent serialization. This is the recommended solution. Define the writeObject() function to throw an exception explicitly denying serialization.

Mitigation
Implementation

Make sure to prevent serialization of your objects.

No CAPEC attack patterns related to this CWE.

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