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.
4794 vulnerabilities reference this CWE, most recent first.
GHSA-XXCG-H8CR-979M
Vulnerability from github – Published: 2022-05-24 19:14 – Updated: 2022-05-24 19:14A vulnerability has been identified in Cerberus DMS V4.0 (All versions), Cerberus DMS V4.1 (All versions), Cerberus DMS V4.2 (All versions), Cerberus DMS V5.0 (All versions < v5.0 QU1), Desigo CC Compact V4.0 (All versions), Desigo CC Compact V4.1 (All versions), Desigo CC Compact V4.2 (All versions), Desigo CC Compact V5.0 (All versions < V5.0 QU1), Desigo CC V4.0 (All versions), Desigo CC V4.1 (All versions), Desigo CC V4.2 (All versions), Desigo CC V5.0 (All versions < V5.0 QU1). The application deserialises untrusted data without sufficient validations, that could result in an arbitrary deserialization. This could allow an unauthenticated attacker to execute code in the affected system. The CCOM communication component used for Windows App / Click-Once and IE Web / XBAP client connectivity are affected by the vulnerability.
{
"affected": [],
"aliases": [
"CVE-2021-37181"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-09-14T11:15:00Z",
"severity": "CRITICAL"
},
"details": "A vulnerability has been identified in Cerberus DMS V4.0 (All versions), Cerberus DMS V4.1 (All versions), Cerberus DMS V4.2 (All versions), Cerberus DMS V5.0 (All versions \u003c v5.0 QU1), Desigo CC Compact V4.0 (All versions), Desigo CC Compact V4.1 (All versions), Desigo CC Compact V4.2 (All versions), Desigo CC Compact V5.0 (All versions \u003c V5.0 QU1), Desigo CC V4.0 (All versions), Desigo CC V4.1 (All versions), Desigo CC V4.2 (All versions), Desigo CC V5.0 (All versions \u003c V5.0 QU1). The application deserialises untrusted data without sufficient validations, that could result in an arbitrary deserialization. This could allow an unauthenticated attacker to execute code in the affected system. The CCOM communication component used for Windows App / Click-Once and IE Web / XBAP client connectivity are affected by the vulnerability.",
"id": "GHSA-xxcg-h8cr-979m",
"modified": "2022-05-24T19:14:31Z",
"published": "2022-05-24T19:14:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-37181"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-453715.pdf"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-XXH9-45Q4-7WJC
Vulnerability from github – Published: 2025-07-16 12:30 – Updated: 2026-04-01 18:35Deserialization of Untrusted Data vulnerability in Guru Team Site Chat on Telegram allows Object Injection. This issue affects Site Chat on Telegram: from n/a through 1.0.4.
{
"affected": [],
"aliases": [
"CVE-2025-30949"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-16T12:15:24Z",
"severity": "CRITICAL"
},
"details": "Deserialization of Untrusted Data vulnerability in Guru Team Site Chat on Telegram allows Object Injection. This issue affects Site Chat on Telegram: from n/a through 1.0.4.",
"id": "GHSA-xxh9-45q4-7wjc",
"modified": "2026-04-01T18:35:47Z",
"published": "2025-07-16T12:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-30949"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/site-chat-on-telegram/vulnerability/wordpress-site-chat-on-telegram-1-0-4-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-XXM4-M7F5-MQXF
Vulnerability from github – Published: 2025-08-20 09:30 – Updated: 2026-04-01 18:35Deserialization of Untrusted Data vulnerability in ThemeMakers ThemeMakers Visual Content Composer allows Object Injection. This issue affects ThemeMakers Visual Content Composer: from n/a through 1.5.8.
{
"affected": [],
"aliases": [
"CVE-2025-53299"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-20T08:15:41Z",
"severity": "CRITICAL"
},
"details": "Deserialization of Untrusted Data vulnerability in ThemeMakers ThemeMakers Visual Content Composer allows Object Injection. This issue affects ThemeMakers Visual Content Composer: from n/a through 1.5.8.",
"id": "GHSA-xxm4-m7f5-mqxf",
"modified": "2026-04-01T18:35:55Z",
"published": "2025-08-20T09:30:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-53299"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/tmm_content_composer/vulnerability/wordpress-thememakers-visual-content-composer-plugin-1-5-8-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-XXV9-73GC-96FM
Vulnerability from github – Published: 2026-02-17 03:30 – Updated: 2026-02-17 03:30LightLLM version 1.1.0 and prior contain an unauthenticated remote code execution vulnerability in PD (prefill-decode) disaggregation mode. The PD master node exposes WebSocket endpoints that receive binary frames and pass the data directly to pickle.loads() without authentication or validation. A remote attacker who can reach the PD master can send a crafted payload to achieve arbitrary code execution.
{
"affected": [],
"aliases": [
"CVE-2026-26220"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-17T03:16:01Z",
"severity": "CRITICAL"
},
"details": "LightLLM version 1.1.0 and prior contain an unauthenticated remote code execution vulnerability in PD (prefill-decode) disaggregation mode. The PD master node exposes WebSocket endpoints that receive binary frames and pass the data directly to pickle.loads() without authentication or validation. A remote attacker who can reach the PD master can send a crafted payload to achieve arbitrary code execution.",
"id": "GHSA-xxv9-73gc-96fm",
"modified": "2026-02-17T03:30:15Z",
"published": "2026-02-17T03:30:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26220"
},
{
"type": "WEB",
"url": "https://github.com/ModelTC/LightLLM/issues/1213"
},
{
"type": "WEB",
"url": "https://chocapikk.com/posts/2026/lightllm-pickle-rce"
},
{
"type": "WEB",
"url": "https://github.com/ModelTC/lightllm/blob/a27dfc88c2144ed51a6e160b6fbe20aad66c8fe0/lightllm/server/api_http.py#L310"
},
{
"type": "WEB",
"url": "https://github.com/ModelTC/lightllm/blob/a27dfc88c2144ed51a6e160b6fbe20aad66c8fe0/lightllm/server/api_http.py#L331"
},
{
"type": "WEB",
"url": "https://lightllm-en.readthedocs.io/en/latest/index.html"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/lightllm-pd-mode-unsafe-deserialization-rce"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "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/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"
}
]
}
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.