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-479C-33WC-G2PG
Vulnerability from github – Published: 2026-04-10 15:35 – Updated: 2026-04-10 15:35Impact
A denial of service vulnerability exists in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack versions 19.0.0, 19.1.0 and 19.2.0. The vulnerability is triggered by sending specially crafted HTTP requests to Server Function endpoints.
The payload of the HTTP request causes excessive CPU usage for up to a minute ending in a thrown error that is catchable.
We recommend updating immediately.
The vulnerability exists in versions 19.0.0 through 19.0.4, 19.1.0 through 19.1.5, and 19.2.0 through 19.2.4 of:
react-server-dom-webpack react-server-dom-parcel react-server-dom-turbopack
Patches
Fixes were back ported to versions 19.0.5, 19.1.6, and 19.2.5.
If you are using any of the above packages please upgrade to any of the fixed versions immediately.
If your app’s React code does not use a server, your app is not affected by this vulnerability. If your app does not use a framework, bundler, or bundler plugin that supports React Server Components, your app is not affected by this vulnerability.
References
See the blog post for more information and upgrade instructions.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "react-server-dom-parcel"
},
"ranges": [
{
"events": [
{
"introduced": "19.0.0"
},
{
"fixed": "19.0.5"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "react-server-dom-parcel"
},
"ranges": [
{
"events": [
{
"introduced": "19.1.0"
},
{
"fixed": "19.1.6"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "react-server-dom-parcel"
},
"ranges": [
{
"events": [
{
"introduced": "19.2.0"
},
{
"fixed": "19.2.5"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "react-server-dom-turbopack"
},
"ranges": [
{
"events": [
{
"introduced": "19.0.0"
},
{
"fixed": "19.0.5"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "react-server-dom-turbopack"
},
"ranges": [
{
"events": [
{
"introduced": "19.1.0"
},
{
"fixed": "19.1.6"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "react-server-dom-turbopack"
},
"ranges": [
{
"events": [
{
"introduced": "19.2.0"
},
{
"fixed": "19.2.5"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "react-server-dom-webpack"
},
"ranges": [
{
"events": [
{
"introduced": "19.0.0"
},
{
"fixed": "19.0.5"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "react-server-dom-webpack"
},
"ranges": [
{
"events": [
{
"introduced": "19.1.0"
},
{
"fixed": "19.1.6"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "react-server-dom-webpack"
},
"ranges": [
{
"events": [
{
"introduced": "19.2.0"
},
{
"fixed": "19.2.5"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-23869"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2026-04-10T15:35:37Z",
"nvd_published_at": "2026-04-08T20:16:23Z",
"severity": "HIGH"
},
"details": "## Impact\n\nA denial of service vulnerability exists in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack versions 19.0.0, 19.1.0 and 19.2.0. The vulnerability is triggered by sending specially crafted HTTP requests to Server Function endpoints.\n\nThe payload of the HTTP request causes excessive CPU usage for up to a minute ending in a thrown error that is catchable.\n\nWe recommend updating immediately.\n\nThe vulnerability exists in versions 19.0.0 through 19.0.4, 19.1.0 through 19.1.5, and 19.2.0 through 19.2.4 of:\n\n[react-server-dom-webpack](https://www.npmjs.com/package/react-server-dom-webpack)\n[react-server-dom-parcel](https://www.npmjs.com/package/react-server-dom-parcel)\n[react-server-dom-turbopack](https://www.npmjs.com/package/react-server-dom-turbopack?activeTab=readme)\n\n## Patches\n\nFixes were back ported to versions 19.0.5, 19.1.6, and 19.2.5.\n\nIf you are using any of the above packages please upgrade to any of the fixed versions immediately.\n\nIf your app\u2019s React code does not use a server, your app is not affected by this vulnerability. If your app does not use a framework, bundler, or bundler plugin that supports React Server Components, your app is not affected by this vulnerability.\n\n## References\n\nSee the [blog post](https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components) for more information and upgrade instructions.",
"id": "GHSA-479c-33wc-g2pg",
"modified": "2026-04-10T15:35:38Z",
"published": "2026-04-10T15:35:37Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/facebook/react/security/advisories/GHSA-479c-33wc-g2pg"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23869"
},
{
"type": "PACKAGE",
"url": "https://github.com/facebook/react"
},
{
"type": "WEB",
"url": "https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components"
}
],
"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": "React Server Components have a Denial of Service Vulnerability"
}
GHSA-47Q3-7PJ8-V689
Vulnerability from github – Published: 2025-08-14 12:30 – Updated: 2026-04-01 18:35Deserialization of Untrusted Data vulnerability in Arraytics Eventin allows Object Injection. This issue affects Eventin: from n/a through 4.0.31.
{
"affected": [],
"aliases": [
"CVE-2025-49869"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-14T11:15:40Z",
"severity": "HIGH"
},
"details": "Deserialization of Untrusted Data vulnerability in Arraytics Eventin allows Object Injection. This issue affects Eventin: from n/a through 4.0.31.",
"id": "GHSA-47q3-7pj8-v689",
"modified": "2026-04-01T18:35:49Z",
"published": "2025-08-14T12:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49869"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/wp-event-solution/vulnerability/wordpress-eventin-plugin-4-0-31-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-47W8-68X4-MMM6
Vulnerability from github – Published: 2025-01-21 15:31 – Updated: 2026-04-01 18:33Deserialization of Untrusted Data vulnerability in NotFound ARPrice allows Object Injection. This issue affects ARPrice: from n/a through 4.0.3.
{
"affected": [],
"aliases": [
"CVE-2024-49688"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-01-21T14:15:08Z",
"severity": "CRITICAL"
},
"details": "Deserialization of Untrusted Data vulnerability in NotFound ARPrice allows Object Injection. This issue affects ARPrice: from n/a through 4.0.3.",
"id": "GHSA-47w8-68x4-mmm6",
"modified": "2026-04-01T18:33:17Z",
"published": "2025-01-21T15:31:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49688"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/arprice/vulnerability/wordpress-arprice-plugin-4-0-3-unauthenticated-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-47WW-MQ32-G4XW
Vulnerability from github – Published: 2022-05-17 04:54 – Updated: 2023-08-29 19:02The Content Editing Wizards component in TYPO3 4.5.0 through 4.5.31, 4.7.0 through 4.7.16, 6.0.0 through 6.0.11, and 6.1.0 through 6.1.6 allows remote authenticated backend users to unserialize arbitrary PHP objects, delete arbitrary files, and possibly have other unspecified impacts via an unspecified parameter, related to a "missing signature."
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 4.5.31"
},
"package": {
"ecosystem": "Packagist",
"name": "typo3/cms"
},
"ranges": [
{
"events": [
{
"introduced": "4.5.0"
},
{
"fixed": "4.5.32"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 4.7.16"
},
"package": {
"ecosystem": "Packagist",
"name": "typo3/cms"
},
"ranges": [
{
"events": [
{
"introduced": "4.7.0"
},
{
"fixed": "4.7.17"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 6.0.11"
},
"package": {
"ecosystem": "Packagist",
"name": "typo3/cms"
},
"ranges": [
{
"events": [
{
"introduced": "6.0.0"
},
{
"fixed": "6.0.12"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 6.1.6"
},
"package": {
"ecosystem": "Packagist",
"name": "typo3/cms"
},
"ranges": [
{
"events": [
{
"introduced": "6.1.0"
},
{
"fixed": "6.1.7"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2013-7075"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2023-08-29T19:02:19Z",
"nvd_published_at": "2013-12-23T23:55:00Z",
"severity": "MODERATE"
},
"details": "The Content Editing Wizards component in TYPO3 4.5.0 through 4.5.31, 4.7.0 through 4.7.16, 6.0.0 through 6.0.11, and 6.1.0 through 6.1.6 allows remote authenticated backend users to unserialize arbitrary PHP objects, delete arbitrary files, and possibly have other unspecified impacts via an unspecified parameter, related to a \"missing signature.\"",
"id": "GHSA-47ww-mq32-g4xw",
"modified": "2023-08-29T19:02:19Z",
"published": "2022-05-17T04:54:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-7075"
},
{
"type": "PACKAGE",
"url": "https://github.com/TYPO3/typo3"
},
{
"type": "WEB",
"url": "http://seclists.org/oss-sec/2013/q4/473"
},
{
"type": "WEB",
"url": "http://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2013-004"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2014/dsa-2834"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
}
],
"summary": "TYPO3 vulnerable to Insecure Unserialize via Content Editing Wizards component"
}
GHSA-482P-FJ3C-XCW8
Vulnerability from github – Published: 2023-01-03 00:30 – Updated: 2023-01-09 21:30The Custom Field Template WordPress plugin before 2.5.8 unserialises the content of an imported file, which could lead to PHP object injections issues when a high privilege user import (intentionally or not) a malicious Customizer Styling file and a suitable gadget chain is present on the blog.
{
"affected": [],
"aliases": [
"CVE-2022-4324"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-01-02T22:15:00Z",
"severity": "HIGH"
},
"details": "The Custom Field Template WordPress plugin before 2.5.8 unserialises the content of an imported file, which could lead to PHP object injections issues when a high privilege user import (intentionally or not) a malicious Customizer Styling file and a suitable gadget chain is present on the blog.",
"id": "GHSA-482p-fj3c-xcw8",
"modified": "2023-01-09T21:30:21Z",
"published": "2023-01-03T00:30:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-4324"
},
{
"type": "WEB",
"url": "https://wpscan.com/vulnerability/70c39236-f7ae-49bf-a2f0-7cb9aa983e45"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4844-9F5J-F96X
Vulnerability from github – Published: 2022-05-13 01:01 – Updated: 2022-05-13 01:01An exploitable code execution vulnerability exists in the Levin deserialization functionality of the Epee library, as used in Monero 'Lithium Luna' (v0.12.2.0-master-ffab6700) and other cryptocurrencies. A specially crafted network packet can cause a logic flaw, resulting in code execution. An attacker can send a packet to trigger this vulnerability.
{
"affected": [],
"aliases": [
"CVE-2018-3972"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-09-26T12:29:00Z",
"severity": "CRITICAL"
},
"details": "An exploitable code execution vulnerability exists in the Levin deserialization functionality of the Epee library, as used in Monero \u0027Lithium Luna\u0027 (v0.12.2.0-master-ffab6700) and other cryptocurrencies. A specially crafted network packet can cause a logic flaw, resulting in code execution. An attacker can send a packet to trigger this vulnerability.",
"id": "GHSA-4844-9f5j-f96x",
"modified": "2022-05-13T01:01:50Z",
"published": "2022-05-13T01:01:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-3972"
},
{
"type": "WEB",
"url": "https://blog.talosintelligence.com/2018/09/epee-levin-vuln.html"
},
{
"type": "WEB",
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0637"
}
],
"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-4859-J9VH-366X
Vulnerability from github – Published: 2025-04-11 09:30 – Updated: 2026-04-01 18:34Deserialization of Untrusted Data vulnerability in magepeopleteam WpBookingly allows Object Injection. This issue affects WpBookingly: from n/a through 1.2.0.
{
"affected": [],
"aliases": [
"CVE-2025-32607"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-11T09:15:32Z",
"severity": "CRITICAL"
},
"details": "Deserialization of Untrusted Data vulnerability in magepeopleteam WpBookingly allows Object Injection. This issue affects WpBookingly: from n/a through 1.2.0.",
"id": "GHSA-4859-j9vh-366x",
"modified": "2026-04-01T18:34:40Z",
"published": "2025-04-11T09:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-32607"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/service-booking-manager/vulnerability/wordpress-wpbookingly-plugin-1-2-0-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-487J-QRWP-98VF
Vulnerability from github – Published: 2026-06-17 18:35 – Updated: 2026-06-17 18:35Unauthenticated PHP Object Injection in Mildhill <= 1.5 versions.
{
"affected": [],
"aliases": [
"CVE-2026-39573"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-17T13:20:20Z",
"severity": "HIGH"
},
"details": "Unauthenticated PHP Object Injection in Mildhill \u003c= 1.5 versions.",
"id": "GHSA-487j-qrwp-98vf",
"modified": "2026-06-17T18:35:49Z",
"published": "2026-06-17T18:35:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39573"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/theme/mildhill/vulnerability/wordpress-mildhill-theme-1-5-php-object-injection-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-488J-9QQC-XQPC
Vulnerability from github – Published: 2024-03-28 06:30 – Updated: 2026-04-28 21:34Deserialization of Untrusted Data vulnerability in WPENGINE, INC. WP Migrate.This issue affects WP Migrate: from n/a through 2.6.10.
{
"affected": [],
"aliases": [
"CVE-2024-30225"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-28T05:15:50Z",
"severity": "CRITICAL"
},
"details": "Deserialization of Untrusted Data vulnerability in WPENGINE, INC. WP Migrate.This issue affects WP Migrate: from n/a through 2.6.10.",
"id": "GHSA-488j-9qqc-xqpc",
"modified": "2026-04-28T21:34:21Z",
"published": "2024-03-28T06:30:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-30225"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/vulnerability/wp-migrate-db-pro/wordpress-wp-migrate-plugin-2-6-10-unauthenticated-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:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-48JR-P93F-PWQ8
Vulnerability from github – Published: 2024-04-02 21:30 – Updated: 2025-02-27 18:30Alldata V0.4.6 is vulnerable to Command execution vulnerability. System commands can be deserialized.
{
"affected": [],
"aliases": [
"CVE-2024-27604"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-02T21:15:46Z",
"severity": "CRITICAL"
},
"details": "Alldata V0.4.6 is vulnerable to Command execution vulnerability. System commands can be deserialized.",
"id": "GHSA-48jr-p93f-pwq8",
"modified": "2025-02-27T18:30:53Z",
"published": "2024-04-02T21:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27604"
},
{
"type": "WEB",
"url": "https://gist.github.com/Raybye/b88847e9e9a94a1b1028dbdb7e38c12b"
}
],
"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"
}
]
}
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.