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.
4797 vulnerabilities reference this CWE, most recent first.
GHSA-VMW3-XQX8-H247
Vulnerability from github – Published: 2025-06-17 18:31 – Updated: 2025-06-17 18:31An insecure deserialization operation in Trend Micro Apex Central below version 8.0.7007 could lead to a pre-authentication remote code execution on affected installations. Note that this vulnerability is similar to CVE-2025-49219 but is in a different method.
{
"affected": [],
"aliases": [
"CVE-2025-49220"
],
"database_specific": {
"cwe_ids": [
"CWE-477",
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-17T18:15:27Z",
"severity": "CRITICAL"
},
"details": "An insecure deserialization operation in Trend Micro Apex Central below version 8.0.7007 could lead to a pre-authentication remote code execution on affected installations. Note that this vulnerability is similar to CVE-2025-49219 but is in a different method.",
"id": "GHSA-vmw3-xqx8-h247",
"modified": "2025-06-17T18:31:37Z",
"published": "2025-06-17T18:31:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49220"
},
{
"type": "WEB",
"url": "https://success.trendmicro.com/en-US/solution/KA-0019926"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-25-367"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-VMW6-J58P-9P55
Vulnerability from github – Published: 2022-05-24 19:06 – Updated: 2022-05-24 19:06Veeam Backup and Replication 10 before 10.0.1.4854 P20210609 and 11 before 11.0.0.837 P20210507 mishandles deserialization during Microsoft .NET remoting.
{
"affected": [],
"aliases": [
"CVE-2021-35971"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-06-30T15:15:00Z",
"severity": "CRITICAL"
},
"details": "Veeam Backup and Replication 10 before 10.0.1.4854 P20210609 and 11 before 11.0.0.837 P20210507 mishandles deserialization during Microsoft .NET remoting.",
"id": "GHSA-vmw6-j58p-9p55",
"modified": "2022-05-24T19:06:36Z",
"published": "2022-05-24T19:06:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-35971"
},
{
"type": "WEB",
"url": "https://www.veeam.com/kb4126"
},
{
"type": "WEB",
"url": "https://www.veeam.com/kb4180"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-VP2M-R3PP-P859
Vulnerability from github – Published: 2026-02-20 18:31 – Updated: 2026-02-25 00:31Deserialization of Untrusted Data vulnerability in ThemeREX Extreme Store extremestore allows Object Injection.This issue affects Extreme Store: from n/a through <= 1.5.7.
{
"affected": [],
"aliases": [
"CVE-2025-69404"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-20T16:22:26Z",
"severity": "CRITICAL"
},
"details": "Deserialization of Untrusted Data vulnerability in ThemeREX Extreme Store extremestore allows Object Injection.This issue affects Extreme Store: from n/a through \u003c= 1.5.7.",
"id": "GHSA-vp2m-r3pp-p859",
"modified": "2026-02-25T00:31:22Z",
"published": "2026-02-20T18:31:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-69404"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/Wordpress/Theme/extremestore/vulnerability/wordpress-extreme-store-theme-1-5-7-php-object-injection-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-VP3Q-JJHW-8MJH
Vulnerability from github – Published: 2025-08-28 15:30 – Updated: 2026-04-01 18:36Deserialization of Untrusted Data vulnerability in manfcarlo WP Funnel Manager allows Object Injection. This issue affects WP Funnel Manager: from n/a through 1.4.0.
{
"affected": [],
"aliases": [
"CVE-2025-52761"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-28T13:16:00Z",
"severity": "CRITICAL"
},
"details": "Deserialization of Untrusted Data vulnerability in manfcarlo WP Funnel Manager allows Object Injection. This issue affects WP Funnel Manager: from n/a through 1.4.0.",
"id": "GHSA-vp3q-jjhw-8mjh",
"modified": "2026-04-01T18:36:00Z",
"published": "2025-08-28T15:30:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-52761"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/wp-funnel-manager/vulnerability/wordpress-wp-funnel-manager-plugin-1-4-0-php-object-injection-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-VP4Q-FGMR-QHQC
Vulnerability from github – Published: 2022-05-24 16:54 – Updated: 2024-04-04 01:46The newsletters-lite plugin before 4.6.8.6 for WordPress has PHP object injection.
{
"affected": [],
"aliases": [
"CVE-2018-20987"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-08-22T20:15:00Z",
"severity": "CRITICAL"
},
"details": "The newsletters-lite plugin before 4.6.8.6 for WordPress has PHP object injection.",
"id": "GHSA-vp4q-fgmr-qhqc",
"modified": "2024-04-04T01:46:14Z",
"published": "2022-05-24T16:54:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-20987"
},
{
"type": "WEB",
"url": "https://wordpress.org/plugins/newsletters-lite/#developers"
},
{
"type": "WEB",
"url": "https://wpvulndb.com/vulnerabilities/9627"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-VP55-FHXX-VCX8
Vulnerability from github – Published: 2022-05-24 17:26 – Updated: 2023-05-16 17:57An issue was discovered in the Maven Extension plugin before 1.6 for Gradle Enterprise. It is vulnerable to, in the worst case, Remote Code Execution, and in the general case, local privilege escalation. Internally, the plugin uses a socket connection to send serialized Java objects that are deserialized by a Java standard library ObjectInputStream. This ObjectInputStream was not restricted to a list of trusted classes, thus allowing an attacker to send a malicious deserialization gadget chain to achieve code execution. The socket was not bound exclusively to localhost. The port this socket is assigned to is randomly selected by the JVM and is not intentionally exposed to the public (either by design or documentation).
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "com.gradle:gradle-enterprise-maven-extension"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.6"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-15777"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2023-05-16T17:57:47Z",
"nvd_published_at": "2020-08-25T22:15:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in the Maven Extension plugin before 1.6 for Gradle Enterprise. It is vulnerable to, in the worst case, Remote Code Execution, and in the general case, local privilege escalation. Internally, the plugin uses a socket connection to send serialized Java objects that are deserialized by a Java standard library ObjectInputStream. This ObjectInputStream was not restricted to a list of trusted classes, thus allowing an attacker to send a malicious deserialization gadget chain to achieve code execution. The socket was not bound exclusively to localhost. The port this socket is assigned to is randomly selected by the JVM and is not intentionally exposed to the public (either by design or documentation).",
"id": "GHSA-vp55-fhxx-vcx8",
"modified": "2023-05-16T17:57:47Z",
"published": "2022-05-24T17:26:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-15777"
},
{
"type": "WEB",
"url": "https://docs.gradle.com/enterprise/maven-extension/#1_6"
},
{
"type": "WEB",
"url": "https://docs.gradle.com/enterprise/maven-extension/#release_history"
},
{
"type": "WEB",
"url": "https://security.gradle.com/advisory/CVE-2020-15777"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Maven Extension plugin for Gradle Enterprise vulnerable to Deserialization of Untrusted Data"
}
GHSA-VP5X-3V8R-QPRW
Vulnerability from github – Published: 2022-01-12 22:51 – Updated: 2022-01-19 18:25A deserialization vulnerability existed in dubbo hessian-lite 3.2.11 and its earlier versions, which could lead to malicious code execution. Most Dubbo users use Hessian2 as the default serialization/deserialization protocol, during Hessian catch unexpected exceptions, Hessian will log out some imformation for users, which may cause remote command execution. This issue affects Apache Dubbo Apache Dubbo 2.6.x versions prior to 2.6.12; Apache Dubbo 2.7.x versions prior to 2.7.15; Apache Dubbo 3.0.x versions prior to 3.0.5.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.dubbo:dubbo"
},
"ranges": [
{
"events": [
{
"introduced": "2.6.0"
},
{
"fixed": "2.6.12"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.dubbo:dubbo"
},
"ranges": [
{
"events": [
{
"introduced": "2.7.0"
},
{
"fixed": "2.7.15"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.dubbo:dubbo"
},
"ranges": [
{
"events": [
{
"introduced": "3.0.0"
},
{
"fixed": "3.0.5"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-43297"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2022-01-11T18:30:09Z",
"nvd_published_at": "2022-01-10T16:15:00Z",
"severity": "CRITICAL"
},
"details": "A deserialization vulnerability existed in dubbo hessian-lite 3.2.11 and its earlier versions, which could lead to malicious code execution. Most Dubbo users use Hessian2 as the default serialization/deserialization protocol, during Hessian catch unexpected exceptions, Hessian will log out some imformation for users, which may cause remote command execution. This issue affects Apache Dubbo Apache Dubbo 2.6.x versions prior to 2.6.12; Apache Dubbo 2.7.x versions prior to 2.7.15; Apache Dubbo 3.0.x versions prior to 3.0.5.",
"id": "GHSA-vp5x-3v8r-qprw",
"modified": "2022-01-19T18:25:14Z",
"published": "2022-01-12T22:51:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43297"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread/1mszxrvp90y01xob56yp002939c7hlww"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Deserialization of Untrusted Data in Dubbo"
}
GHSA-VP84-P7V4-WJ2G
Vulnerability from github – Published: 2026-01-22 18:30 – Updated: 2026-01-28 18:30Deserialization of Untrusted Data vulnerability in Arraytics Eventin wp-event-solution allows Object Injection.This issue affects Eventin: from n/a through <= 4.1.1.
{
"affected": [],
"aliases": [
"CVE-2025-68047"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-22T17:16:09Z",
"severity": "HIGH"
},
"details": "Deserialization of Untrusted Data vulnerability in Arraytics Eventin wp-event-solution allows Object Injection.This issue affects Eventin: from n/a through \u003c= 4.1.1.",
"id": "GHSA-vp84-p7v4-wj2g",
"modified": "2026-01-28T18:30:42Z",
"published": "2026-01-22T18:30:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68047"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/Wordpress/Plugin/wp-event-solution/vulnerability/wordpress-eventin-plugin-4-0-52-php-object-injection-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-VP8M-MF3R-82Q9
Vulnerability from github – Published: 2026-07-04 03:31 – Updated: 2026-07-04 03:31picklescan before 0.0.29 fails to detect malicious pickle payloads that utilize lib2to3.pgen2.grammar.Grammar.loads in the reduce method, allowing remote code execution. Attackers can craft pickle files embedding dangerous code that evades picklescan detection and executes during pickle.load() deserialization.
{
"affected": [],
"aliases": [
"CVE-2025-71359"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-04T02:16:22Z",
"severity": "HIGH"
},
"details": "picklescan before 0.0.29 fails to detect malicious pickle payloads that utilize lib2to3.pgen2.grammar.Grammar.loads in the reduce method, allowing remote code execution. Attackers can craft pickle files embedding dangerous code that evades picklescan detection and executes during pickle.load() deserialization.",
"id": "GHSA-vp8m-mf3r-82q9",
"modified": "2026-07-04T03:31:01Z",
"published": "2026-07-04T03:31:01Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/mmaitre314/picklescan/security/advisories/GHSA-f54q-57x4-jg88"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71359"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/picklescan-unsafe-deserialization-via-lib2to3-pgen2-grammar-grammar-loads"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-VP98-W2P3-MV35
Vulnerability from github – Published: 2023-03-10 15:30 – Updated: 2025-09-02 22:25** UNSUPPORTED WHEN ASSIGNED ** When using the Chainsaw or SocketAppender components with Log4j 1.x on JRE less than 1.7, an attacker that manages to cause a logging entry involving a specially-crafted (ie deeply nested) hashmap or hashtable (depending on which logging component is in use) to be processed could exhaust the available memory in the virtual machine and achieve Denial of Service when the object is deserialized. This issue affects Apache Log4j before 2. Affected users are recommended to update to Log4j 2.x. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.logging.log4j:log4j-core"
},
"ranges": [
{
"events": [
{
"introduced": "1.0.4"
},
{
"fixed": "2.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "log4j:log4j"
},
"ranges": [
{
"events": [
{
"introduced": "1.0.4"
},
{
"fixed": "2.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-26464"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2023-03-10T23:48:32Z",
"nvd_published_at": "2023-03-10T14:15:00Z",
"severity": "HIGH"
},
"details": "** UNSUPPORTED WHEN ASSIGNED ** When using the Chainsaw or SocketAppender components with Log4j 1.x on JRE less than 1.7, an attacker that manages to cause a logging entry involving a specially-crafted (ie deeply nested) hashmap or hashtable (depending on which logging component is in use) to be processed could exhaust the available memory in the virtual machine and achieve Denial of Service when the object is deserialized. This issue affects Apache Log4j before 2. Affected users are recommended to update to Log4j 2.x. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.",
"id": "GHSA-vp98-w2p3-mv35",
"modified": "2025-09-02T22:25:25Z",
"published": "2023-03-10T15:30:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-26464"
},
{
"type": "PACKAGE",
"url": "https://github.com/apache/logging-log4j2"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread/wkx6grrcjkh86crr49p4blc1v1nflj3t"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20230505-0008"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Apache Log4j 1.x (EOL) allows Denial of Service (DoS)"
}
Mitigation
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
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
Explicitly define a final object() to prevent deserialization.
Mitigation
- 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
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
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
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.