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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.

5347 vulnerabilities reference this CWE, most recent first.

GHSA-RJ2H-5W53-CG32

Vulnerability from github – Published: 2022-05-24 19:18 – Updated: 2022-05-24 19:18
VLAI
Details

Adobe Connect version 11.2.2 (and earlier) is affected by a Deserialization of Untrusted Data vulnerability to achieve arbitrary method invocation when AMF messages are deserialized on an Adobe Connect server. An attacker can leverage this to execute remote code execution on the server.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2021-40719"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-10-21T20:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "Adobe Connect version 11.2.2 (and earlier) is affected by a Deserialization of Untrusted Data vulnerability to achieve arbitrary method invocation when AMF messages are deserialized on an Adobe Connect server. An attacker can leverage this to execute remote code execution on the server.",
  "id": "GHSA-rj2h-5w53-cg32",
  "modified": "2022-05-24T19:18:25Z",
  "published": "2022-05-24T19:18:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-40719"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/connect/apsb21-91.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-RJ48-23JV-5PH5

Vulnerability from github – Published: 2024-11-24 21:30 – Updated: 2024-11-24 21:30
VLAI
Details

An issue was discovered in the server in Veritas Enterprise Vault before 15.2, ZDI-CAN-24336. It allows remote attackers to execute arbitrary code because untrusted data, received on a .NET Remoting TCP port, is deserialized.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-53910"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-11-24T21:15:03Z",
    "severity": "CRITICAL"
  },
  "details": "An issue was discovered in the server in Veritas Enterprise Vault before 15.2, ZDI-CAN-24336. It allows remote attackers to execute arbitrary code because untrusted data, received on a .NET Remoting TCP port, is deserialized.",
  "id": "GHSA-rj48-23jv-5ph5",
  "modified": "2024-11-24T21:30:46Z",
  "published": "2024-11-24T21:30:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53910"
    },
    {
      "type": "WEB",
      "url": "https://www.veritas.com/content/support/en_US/security/VTS24-014"
    }
  ],
  "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-RJ55-CP95-H7F6

Vulnerability from github – Published: 2026-08-31 21:32 – Updated: 2026-08-31 21:32
VLAI
Details

Unrestricted deserialization of untrusted data in the cursor pagination component in the OpenSearch SQL plugin allows a remote authenticated user with basic read/search permissions to execute arbitrary code on the server by sending a crafted cursor parameter to the plugins/sql endpoint.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-83497"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-31T19:17:24Z",
    "severity": "HIGH"
  },
  "details": "Unrestricted deserialization of untrusted data in the cursor pagination component in the OpenSearch SQL plugin allows a remote authenticated user with basic read/search permissions to execute arbitrary code on the server by sending a crafted cursor parameter to the plugins/sql endpoint.",
  "id": "GHSA-rj55-cp95-h7f6",
  "modified": "2026-08-31T21:32:10Z",
  "published": "2026-08-31T21:32:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-83497"
    },
    {
      "type": "WEB",
      "url": "https://aws.amazon.com/security/security-bulletins/2026-092-aws"
    },
    {
      "type": "WEB",
      "url": "https://opensearch.org/artifacts/by-version/#release-2-19-6"
    },
    {
      "type": "WEB",
      "url": "https://opensearch.org/artifacts/by-version/#release-3-7-0"
    }
  ],
  "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"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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-RJ7J-W6J6-856V

Vulnerability from github – Published: 2026-04-13 03:30 – Updated: 2026-06-02 18:31
VLAI
Details

Deserialization of untrusted data vulnerability in Samsung Open Source Escargot Java Script allows denial of service condition via process abort.

This issue affects escarogt prior to commit hash

97e8115ab1110bc502b4b5e4a0c689a71520d335

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-25204"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-13T01:16:35Z",
    "severity": "MODERATE"
  },
  "details": "Deserialization of untrusted data vulnerability in Samsung Open Source Escargot Java Script allows denial of service condition via process abort.\n\nThis issue affects escarogt prior to\u00a0commit hash \n\n97e8115ab1110bc502b4b5e4a0c689a71520d335",
  "id": "GHSA-rj7j-w6j6-856v",
  "modified": "2026-06-02T18:31:24Z",
  "published": "2026-04-13T03:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25204"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Samsung/escargot/pull/1554"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-RJ98-CRF4-G69W

Vulnerability from github – Published: 2024-03-07 21:30 – Updated: 2025-02-13 19:08
VLAI
Summary
pgAdmin 4 vulnerable to Unsafe Deserialization and Remote Code Execution by an Authenticated user
Details

pgAdmin prior to version 8.4 is affected by a path-traversal vulnerability while deserializing users’ sessions in the session handling code. If the server is running on Windows, an unauthenticated attacker can load and deserialize remote pickle objects and gain code execution. If the server is running on POSIX/Linux, an authenticated attacker can upload pickle objects, deserialize them and gain code execution.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pgAdmin4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-2044"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22",
      "CWE-31",
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-03-07T22:39:27Z",
    "nvd_published_at": "2024-03-07T21:15:08Z",
    "severity": "CRITICAL"
  },
  "details": "pgAdmin prior to version 8.4 is affected by a path-traversal vulnerability while deserializing users\u2019 sessions in the session handling code. If the server is running on Windows, an unauthenticated attacker can load and deserialize remote pickle objects and gain code execution. If the server is running on POSIX/Linux, an authenticated attacker can upload pickle objects, deserialize them and gain code execution.",
  "id": "GHSA-rj98-crf4-g69w",
  "modified": "2025-02-13T19:08:34Z",
  "published": "2024-03-07T21:30:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-2044"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pgadmin-org/pgadmin4/issues/7258"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pgadmin-org/pgadmin4/commit/4e49d752fba72953acceeb7f4aa2e6e32d25853d"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/pgadmin-org/pgadmin4"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LUYN2JXKKHFSVTASH344TBRGWDH64XQV"
    },
    {
      "type": "WEB",
      "url": "https://www.shielder.com/advisories/pgadmin-path-traversal_leads_to_unsafe_deserialization_and_rce"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
      "type": "CVSS_V4"
    }
  ],
  "summary": "pgAdmin 4 vulnerable to Unsafe Deserialization and Remote Code Execution by an Authenticated user"
}

GHSA-RJ9H-WXR6-MWG8

Vulnerability from github – Published: 2025-01-09 21:31 – Updated: 2025-01-10 18:31
VLAI
Details

Deserialization of Untrusted Data vulnerability in Drupal Eloqua allows Object Injection.This issue affects Eloqua: from 7.X-* before 7.X-1.15.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-13297"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-01-09T21:15:27Z",
    "severity": "MODERATE"
  },
  "details": "Deserialization of Untrusted Data vulnerability in Drupal Eloqua allows Object Injection.This issue affects Eloqua: from 7.X-* before 7.X-1.15.",
  "id": "GHSA-rj9h-wxr6-mwg8",
  "modified": "2025-01-10T18:31:40Z",
  "published": "2025-01-09T21:31:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-13297"
    },
    {
      "type": "WEB",
      "url": "https://www.drupal.org/sa-contrib-2024-063"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-RJG7-V496-W6MX

Vulnerability from github – Published: 2026-07-14 21:32 – Updated: 2026-07-14 21:32
VLAI
Details

NVIDIA TensorRT-LLM for Linux contains a vulnerability in the restricted unpickler used for model weight deserialization, where a local, unauthenticated attacker could cause deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-24233"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-14T21:16:44Z",
    "severity": "HIGH"
  },
  "details": "NVIDIA TensorRT-LLM for Linux contains a vulnerability in the restricted unpickler used for model weight deserialization, where a local, unauthenticated attacker could cause deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.",
  "id": "GHSA-rjg7-v496-w6mx",
  "modified": "2026-07-14T21:32:21Z",
  "published": "2026-07-14T21:32:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-24233"
    },
    {
      "type": "WEB",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-24233"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-RJW8-72RG-98G5

Vulnerability from github – Published: 2025-08-12 18:31 – Updated: 2025-08-12 18:31
VLAI
Details

Deserialization of untrusted data in Web Deploy allows an authorized attacker to execute code over a network.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-53772"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-12T18:15:45Z",
    "severity": "HIGH"
  },
  "details": "Deserialization of untrusted data in Web Deploy allows an authorized attacker to execute code over a network.",
  "id": "GHSA-rjw8-72rg-98g5",
  "modified": "2025-08-12T18:31:33Z",
  "published": "2025-08-12T18:31:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-53772"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53772"
    }
  ],
  "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-RM37-V7MC-6795

Vulnerability from github – Published: 2026-08-05 15:32 – Updated: 2026-08-10 12:31
VLAI
Details

Cotonti CMS's Comments plugin deserializes user-supplied data without restricting the classes that may be instantiated. In plugins/comments/controllers/actions/CreateAction.php, a ci POST parameter obtained via cot_import('ci', 'P', 'TXT') (trim-only sanitization) is passed to unserialize(base64_decode($ci)) with no allowed_classes restriction, reachable by any member with write access to comments (the default Auth_members => 'RW' setting in plugins/comments/comments.setup.php). In plugins/comments/controllers/actions/EditAction.php, a cb parameter is similarly deserialized via unserialize(base64_decode($this->comeback)) in prepareComeBack(), reachable by any member editing their own comment. Because unserialize() is called without allowed_classes, an attacker can construct a serialized PHP object of any class loaded by Cotonti (a PHP Object Injection primitive). This was demonstrated in practice using Cotonti's own MySQL_cache class: a crafted serialized MySQL_cache object, once deserialized and later garbage-collected, triggers its __destruct()->flush() chain, causing an attacker-controlled INSERT INTO cot_cache with attacker-chosen row values — confirming genuine POP-chain exploitation, with further impact (including potential RCE) contingent on other gadget chains available in a given Cotonti installation's loaded classes. A third sink in DeleteAction.php contains the identical unserialize() pattern but is gated behind an admin-only authorization check and is not reachable by ordinary members.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-71294"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-05T13:24:54Z",
    "severity": "HIGH"
  },
  "details": "Cotonti CMS\u0027s Comments plugin deserializes user-supplied data without restricting the classes that may be instantiated. In plugins/comments/controllers/actions/CreateAction.php, a `ci` POST parameter obtained via `cot_import(\u0027ci\u0027, \u0027P\u0027, \u0027TXT\u0027)` (trim-only sanitization) is passed to `unserialize(base64_decode($ci))` with no `allowed_classes` restriction, reachable by any member with write access to comments (the default `Auth_members =\u003e \u0027RW\u0027` setting in plugins/comments/comments.setup.php). In plugins/comments/controllers/actions/EditAction.php, a `cb` parameter is similarly deserialized via `unserialize(base64_decode($this-\u003ecomeback))` in prepareComeBack(), reachable by any member editing their own comment. Because unserialize() is called without allowed_classes, an attacker can construct a serialized PHP object of any class loaded by Cotonti (a PHP Object Injection primitive). This was demonstrated in practice using Cotonti\u0027s own MySQL_cache class: a crafted serialized MySQL_cache object, once deserialized and later garbage-collected, triggers its __destruct()-\u003eflush() chain, causing an attacker-controlled INSERT INTO cot_cache with attacker-chosen row values \u2014 confirming genuine POP-chain exploitation, with further impact (including potential RCE) contingent on other gadget chains available in a given Cotonti installation\u0027s loaded classes. A third sink in DeleteAction.php contains the identical unserialize() pattern but is gated behind an admin-only authorization check and is not reachable by ordinary members.",
  "id": "GHSA-rm37-v7mc-6795",
  "modified": "2026-08-10T12:31:50Z",
  "published": "2026-08-05T15:32:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-71294"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Cotonti/Cotonti"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Cotonti/Cotonti/blob/master/plugins/comments/controllers/actions/CreateAction.php"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-RM3V-36X6-MR48

Vulnerability from github – Published: 2026-08-12 15:30 – Updated: 2026-08-12 15:30
VLAI
Details

A party with write access to stored session data may affect JFrog Artifactory under specific conditions.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-68756"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-12T15:18:22Z",
    "severity": "MODERATE"
  },
  "details": "A party with write access to stored session data may affect JFrog Artifactory under specific conditions.",
  "id": "GHSA-rm3v-36x6-mr48",
  "modified": "2026-08-12T15:30:49Z",
  "published": "2026-08-12T15:30:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68756"
    },
    {
      "type": "WEB",
      "url": "https://docs.jfrog.com/releases/docs/artifactory-self-managed-releases"
    },
    {
      "type": "WEB",
      "url": "https://docs.jfrog.com/releases/docs/jfrog-security-advisories"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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.