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.
5853 vulnerabilities reference this CWE, most recent first.
GHSA-Q69Q-869H-5R34
Vulnerability from github – Published: 2025-07-23 00:30 – Updated: 2025-10-02 18:30A potential security vulnerability has been identified in the Poly Clariti Manager for versions prior to 10.12.1. The vulnerability could deserialize untrusted data without validation. HP has addressed the issue in the latest software update.
{
"affected": [],
"aliases": [
"CVE-2025-43489"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-23T00:15:25Z",
"severity": "LOW"
},
"details": "A potential security vulnerability has been identified in the Poly Clariti Manager for versions prior to 10.12.1. The vulnerability could deserialize untrusted data without validation. HP has addressed the issue in the latest software update.",
"id": "GHSA-q69q-869h-5r34",
"modified": "2025-10-02T18:30:56Z",
"published": "2025-07-23T00:30:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-43489"
},
{
"type": "WEB",
"url": "https://support.hp.com/us-en/document/ish_12781425-12781447-16/hbsbpy04037"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:A/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/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-Q6CQ-5QPF-Q237
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-16 18:31Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
{
"affected": [],
"aliases": [
"CVE-2026-58644"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T17:17:14Z",
"severity": "CRITICAL"
},
"details": "Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-q6cq-5qpf-q237",
"modified": "2026-07-16T18:31:26Z",
"published": "2026-07-14T18:32:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58644"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58644"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-58644"
}
],
"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-Q6MH-X2FX-6P4W
Vulnerability from github – Published: 2026-06-17 18:35 – Updated: 2026-06-17 18:35Unauthenticated PHP Object Injection in Nifty <= 1.4.1 versions.
{
"affected": [],
"aliases": [
"CVE-2026-27429"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-17T13:20:13Z",
"severity": "CRITICAL"
},
"details": "Unauthenticated PHP Object Injection in Nifty \u003c= 1.4.1 versions.",
"id": "GHSA-q6mh-x2fx-6p4w",
"modified": "2026-06-17T18:35:48Z",
"published": "2026-06-17T18:35:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27429"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/theme/nifty/vulnerability/wordpress-nifty-theme-1-4-1-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-Q73P-X2MP-8GM9
Vulnerability from github – Published: 2026-10-21 15:42 – Updated: 2026-10-21 15:42PHPOffice PHPPresentation through 1.2.0 contains an insecure deserialization vulnerability that allows attackers to instantiate arbitrary PHP objects by supplying a crafted presentation file. Attackers can upload a ZIP containing PhpPresentation.xml that IOFactory::load passes to unserialize(), enabling gadget-chain code execution, file writes, or denial of service.
{
"affected": [],
"aliases": [
"CVE-2026-114403"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-21T13:18:31Z",
"severity": "CRITICAL"
},
"details": "PHPOffice PHPPresentation through 1.2.0 contains an insecure deserialization vulnerability that allows attackers to instantiate arbitrary PHP objects by supplying a crafted presentation file. Attackers can upload a ZIP containing PhpPresentation.xml that IOFactory::load passes to unserialize(), enabling gadget-chain code execution, file writes, or denial of service.",
"id": "GHSA-q73p-x2mp-8gm9",
"modified": "2026-10-21T15:42:28Z",
"published": "2026-10-21T15:42:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-114403"
},
{
"type": "WEB",
"url": "https://github.com/PHPOffice/PHPPresentation"
},
{
"type": "WEB",
"url": "https://github.com/PHPOffice/PHPPresentation/blob/1.2.0/src/PhpPresentation/IOFactory.php#L39"
},
{
"type": "WEB",
"url": "https://github.com/PHPOffice/PHPPresentation/blob/1.2.0/src/PhpPresentation/Reader/Serialized.php#L77-L109"
},
{
"type": "WEB",
"url": "https://hackmd.io/@leediay/multiple_vulnerable_phppresentation"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/phpoffice-phppresentation-through-1.2.0-deserialization-via-reader-serialized-load"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/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"
}
]
}
GHSA-Q79Q-94J7-5MGG
Vulnerability from github – Published: 2022-05-13 01:09 – Updated: 2022-05-13 01:09Dozer improperly uses a reflection-based approach to type conversion, which might allow remote attackers to execute arbitrary code via a crafted serialized object.
{
"affected": [],
"aliases": [
"CVE-2014-9515"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-12-29T22:29:00Z",
"severity": "CRITICAL"
},
"details": "Dozer improperly uses a reflection-based approach to type conversion, which might allow remote attackers to execute arbitrary code via a crafted serialized object.",
"id": "GHSA-q79q-94j7-5mgg",
"modified": "2022-05-13T01:09:34Z",
"published": "2022-05-13T01:09:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2014-9515"
},
{
"type": "WEB",
"url": "https://github.com/DozerMapper/dozer/issues/217"
},
{
"type": "WEB",
"url": "https://github.com/DozerMapper/dozer/issues/410"
},
{
"type": "WEB",
"url": "https://github.com/DozerMapper/dozer/issues/786"
},
{
"type": "WEB",
"url": "https://github.com/DozerMapper/dozer/pull/447/commits/ccd550696f3df8545319ffa9c6adafc8eca2334c"
},
{
"type": "WEB",
"url": "https://github.com/pentestingforfunandprofit/research/tree/master/dozer-rce"
},
{
"type": "WEB",
"url": "https://infocon.org/cons/SyScan/SyScan%202015%20Singapore/SyScan%202015%20Singapore%20presentations/SyScan15%20David%20Jorm%20-%20Finding%20and%20exploiting%20novel%20flaws%20in%20Java%20software.pdf"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuApr2021.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/107970"
}
],
"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-Q7JM-WP7H-JX6H
Vulnerability from github – Published: 2025-02-20 12:31 – Updated: 2026-04-08 18:33The ravpage plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 2.31 via deserialization of untrusted input from the 'paramsv2' parameter. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
{
"affected": [],
"aliases": [
"CVE-2024-13789"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-20T10:15:10Z",
"severity": "CRITICAL"
},
"details": "The ravpage plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 2.31 via deserialization of untrusted input from the \u0027paramsv2\u0027 parameter. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.",
"id": "GHSA-q7jm-wp7h-jx6h",
"modified": "2026-04-08T18:33:49Z",
"published": "2025-02-20T12:31:14Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-13789"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/ravpage/trunk/ravpage.php#L24"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset/3258935"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/5e0bcf70-2ffc-45c8-b63e-a8376b6cd22b?source=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-Q7M5-XQ5P-7JQ4
Vulnerability from github – Published: 2025-03-05 12:31 – Updated: 2025-03-05 12:31The WooCommerce Recover Abandoned Cart plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 24.3.0 via deserialization of untrusted input from the 'raccookie_guest_email' cookie. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
{
"affected": [],
"aliases": [
"CVE-2025-0956"
],
"database_specific": {
"cwe_ids": [
"CWE-20",
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-05T10:15:19Z",
"severity": "HIGH"
},
"details": "The WooCommerce Recover Abandoned Cart plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 24.3.0 via deserialization of untrusted input from the \u0027raccookie_guest_email\u0027 cookie. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.",
"id": "GHSA-q7m5-xq5p-7jq4",
"modified": "2025-03-05T12:31:12Z",
"published": "2025-03-05T12:31:12Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-0956"
},
{
"type": "WEB",
"url": "https://codecanyon.net/item/woocommerce-recover-abandoned-cart/7715167"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/067c974c-b3bb-4f06-8f7c-3963112c40d2?source=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-Q7PF-QR96-2VQ5
Vulnerability from github – Published: 2018-10-19 16:46 – Updated: 2022-09-14 19:14A vulnerability in Swagger-Parser's (version <= 1.0.30) yaml parsing functionality results in arbitrary code being executed when a maliciously crafted yaml Open-API specification is parsed. This in particular, affects the 'generate' and 'validate' command in swagger-codegen (<= 2.2.2) and can lead to arbitrary code being executed when these commands are used on a well-crafted yaml specification.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "io.swagger:swagger-codegen"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.2.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "io.swagger:swagger-parser"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.0.31"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2017-1000208"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2020-06-16T21:51:22Z",
"nvd_published_at": null,
"severity": "HIGH"
},
"details": "A vulnerability in Swagger-Parser\u0027s (version \u003c= 1.0.30) yaml parsing functionality results in arbitrary code being executed when a maliciously crafted yaml Open-API specification is parsed. This in particular, affects the \u0027generate\u0027 and \u0027validate\u0027 command in swagger-codegen (\u003c= 2.2.2) and can lead to arbitrary code being executed when these commands are used on a well-crafted yaml specification.",
"id": "GHSA-q7pf-qr96-2vq5",
"modified": "2022-09-14T19:14:55Z",
"published": "2018-10-19T16:46:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-1000208"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-q7pf-qr96-2vq5"
},
{
"type": "PACKAGE",
"url": "https://github.com/swagger-api/swagger-parser"
},
{
"type": "WEB",
"url": "https://github.com/swagger-api/swagger-parser/releases/tag/v1.0.31"
},
{
"type": "WEB",
"url": "https://lgtm.com/blog/swagger_snakeyaml_CVE-2017-1000207_CVE-2017-1000208"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Deserialization of Untrusted Data in swagger-parser"
}
GHSA-Q7RH-Q727-H4MW
Vulnerability from github – Published: 2025-04-17 18:31 – Updated: 2026-04-01 18:34Deserialization of Untrusted Data vulnerability in ssvadim SS Quiz allows Object Injection. This issue affects SS Quiz: from n/a through 2.0.5.
{
"affected": [],
"aliases": [
"CVE-2025-27287"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-17T16:15:35Z",
"severity": "CRITICAL"
},
"details": "Deserialization of Untrusted Data vulnerability in ssvadim SS Quiz allows Object Injection. This issue affects SS Quiz: from n/a through 2.0.5.",
"id": "GHSA-q7rh-q727-h4mw",
"modified": "2026-04-01T18:34:47Z",
"published": "2025-04-17T18:31:14Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-27287"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/ssquiz/vulnerability/wordpress-ss-quiz-plugin-2-0-5-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-Q83H-6954-X259
Vulnerability from github – Published: 2026-08-16 06:30 – Updated: 2026-08-16 06:30The Podlove Podcast Publisher plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the create_link_item function in all versions up to, and including, 4.5.3. This makes it possible for authenticated attackers, with contributor-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). A viable POP chain exists within the plugin itself via Podlove\ImageCache\GenerationGuard, whose __destruct() method invokes wp_delete_file() with an attacker-controlled file path populated through unserialization.
{
"affected": [],
"aliases": [
"CVE-2026-16099"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-16T05:16:47Z",
"severity": "HIGH"
},
"details": "The Podlove Podcast Publisher plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the create_link_item function in all versions up to, and including, 4.5.3. This makes it possible for authenticated attackers, with contributor-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). A viable POP chain exists within the plugin itself via Podlove\\ImageCache\\GenerationGuard, whose __destruct() method invokes wp_delete_file() with an attacker-controlled file path populated through unserialization.",
"id": "GHSA-q83h-6954-x259",
"modified": "2026-08-16T06:30:25Z",
"published": "2026-08-16T06:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-16099"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/podlove-podcasting-plugin-for-wordpress/tags/4.5.3/lib/image_cache/generation_guard.php#L19"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/podlove-podcasting-plugin-for-wordpress/tags/4.5.3/lib/image_cache/generation_guard.php#L57"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/podlove-podcasting-plugin-for-wordpress/tags/4.5.3/lib/model/base.php#L552"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/podlove-podcasting-plugin-for-wordpress/tags/4.5.3/lib/modules/shownotes/rest_api.php#L538"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/podlove-podcasting-plugin-for-wordpress/tags/4.5.3/lib/modules/shownotes/rest_api.php#L585"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/podlove-podcasting-plugin-for-wordpress/tags/4.5.3/lib/modules/shownotes/rest_api.php#L630"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3648110%40podlove-podcasting-plugin-for-wordpress\u0026new=3648110%40podlove-podcasting-plugin-for-wordpress"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/3aa6fd71-337f-4998-a15d-650aa4f6142c?source=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"
}
]
}
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.