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-P57R-8PG4-2892
Vulnerability from github – Published: 2026-05-19 15:31 – Updated: 2026-05-19 15:31HestiaCP versions 1.9.0 through 1.9.4 contain a deserialization vulnerability in the web terminal component caused by a session format mismatch between PHP and Node.js that allows unauthenticated remote attackers to achieve root-level code execution. Attackers can inject crafted data into HTTP headers that are processed by the PHP session handler but incorrectly deserialized by the Node.js web terminal component as trusted session values, resulting in arbitrary command execution on systems with the web terminal feature enabled.
{
"affected": [],
"aliases": [
"CVE-2026-43633"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-19T14:16:43Z",
"severity": "CRITICAL"
},
"details": "HestiaCP versions 1.9.0 through 1.9.4 contain a deserialization vulnerability in the web terminal component caused by a session format mismatch between PHP and Node.js that allows unauthenticated remote attackers to achieve root-level code execution. Attackers can inject crafted data into HTTP headers that are processed by the PHP session handler but incorrectly deserialized by the Node.js web terminal component as trusted session values, resulting in arbitrary command execution on systems with the web terminal feature enabled.",
"id": "GHSA-p57r-8pg4-2892",
"modified": "2026-05-19T15:31:31Z",
"published": "2026-05-19T15:31:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43633"
},
{
"type": "WEB",
"url": "https://github.com/hestiacp/hestiacp/issues/5229"
},
{
"type": "WEB",
"url": "https://github.com/hestiacp/hestiacp/pull/5244"
},
{
"type": "WEB",
"url": "https://github.com/hestiacp/hestiacp/commit/854d71b3c1737b0a0d0cc55c926008ffe1f6719b"
},
{
"type": "WEB",
"url": "https://mercuryiss.com.au/hestiacp-unauthenticated-rce-ip-spoofing-cve-2026-43633-cve-2026-43634"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/hestiacp-deserialization-rce-via-web-terminal"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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-P5GM-FGFX-HR7H
Vulnerability from github – Published: 2022-02-10 20:55 – Updated: 2021-05-04 21:47A deserialization flaw is present in Taoensso Nippy before 2.14.2. In some circumstances, it is possible for an attacker to create a malicious payload that, when deserialized, will allow arbitrary code to be executed. This occurs because there is automatic use of the Java Serializable interface.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "com.taoensso:nippy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.14.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-24164"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2021-05-04T21:47:51Z",
"nvd_published_at": "2020-09-11T06:15:00Z",
"severity": "HIGH"
},
"details": "A deserialization flaw is present in Taoensso Nippy before 2.14.2. In some circumstances, it is possible for an attacker to create a malicious payload that, when deserialized, will allow arbitrary code to be executed. This occurs because there is automatic use of the Java Serializable interface.",
"id": "GHSA-p5gm-fgfx-hr7h",
"modified": "2021-05-04T21:47:51Z",
"published": "2022-02-10T20:55:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-24164"
},
{
"type": "WEB",
"url": "https://github.com/ptaoussanis/nippy/issues/130"
},
{
"type": "WEB",
"url": "https://github.com/ptaoussanis/nippy/commit/61fb009fdde2994140f2da2e495ba8af3a873eb2"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Gadget chain attack in Nippy"
}
GHSA-P5P2-M2MH-3R9V
Vulnerability from github – Published: 2025-05-19 21:30 – Updated: 2026-04-01 18:35Deserialization of Untrusted Data vulnerability in ThemeGoods Grand Conference allows Object Injection.This issue affects Grand Conference: from n/a through 5.2.
{
"affected": [],
"aliases": [
"CVE-2025-39354"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-19T20:15:23Z",
"severity": "CRITICAL"
},
"details": "Deserialization of Untrusted Data vulnerability in ThemeGoods Grand Conference allows Object Injection.This issue affects Grand Conference: from n/a through 5.2.",
"id": "GHSA-p5p2-m2mh-3r9v",
"modified": "2026-04-01T18:35:13Z",
"published": "2025-05-19T21:30:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39354"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/Wordpress/Theme/grandconference/vulnerability/wordpress-grand-conference-theme-5-2-php-object-injection-vulnerability?_s_id=cve"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/grandconference/vulnerability/wordpress-grand-conference-theme-5-2-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-P5V7-WWJH-3VHV
Vulnerability from github – Published: 2026-10-21 12:31 – Updated: 2026-10-21 12:31Deserialization of Untrusted Data vulnerability in GS Plugins GS Pins for Pinterest gs-pinterest-portfolio allows Object Injection.This issue affects GS Pins for Pinterest: from n/a through 1.9.2.
{
"affected": [],
"aliases": [
"CVE-2026-110370"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-21T10:16:55Z",
"severity": "HIGH"
},
"details": "Deserialization of Untrusted Data vulnerability in GS Plugins GS Pins for Pinterest gs-pinterest-portfolio allows Object Injection.This issue affects GS Pins for Pinterest: from n/a through 1.9.2.",
"id": "GHSA-p5v7-wwjh-3vhv",
"modified": "2026-10-21T12:31:07Z",
"published": "2026-10-21T12:31:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-110370"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/gs-pinterest-portfolio/vulnerability/wordpress-gs-pins-for-pinterest-plugin-1-9-2-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-P65J-FXC2-99WW
Vulnerability from github – Published: 2026-08-07 18:31 – Updated: 2026-08-07 18:31ZenML 0.94.6 contains a remote code execution vulnerability in the CloudpickleMaterializer component that allows attackers with write access to a shared artifact store to execute arbitrary code by planting a malicious pickle file. Attackers can replace a stored artifact.pkl file with a crafted cloudpickle payload containing a malicious reduce method, which executes arbitrary system commands when any user or pipeline materializes the artifact through the unsanitized cloudpickle.load() call in cloudpickle_materializer.py.
{
"affected": [],
"aliases": [
"CVE-2026-68772"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-07T17:17:07Z",
"severity": "HIGH"
},
"details": "ZenML 0.94.6 contains a remote code execution vulnerability in the CloudpickleMaterializer component that allows attackers with write access to a shared artifact store to execute arbitrary code by planting a malicious pickle file. Attackers can replace a stored artifact.pkl file with a crafted cloudpickle payload containing a malicious __reduce__ method, which executes arbitrary system commands when any user or pipeline materializes the artifact through the unsanitized cloudpickle.load() call in cloudpickle_materializer.py.",
"id": "GHSA-p65j-fxc2-99ww",
"modified": "2026-08-07T18:31:45Z",
"published": "2026-08-07T18:31:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68772"
},
{
"type": "WEB",
"url": "https://github.com/zenml-io/zenml/pull/5103"
},
{
"type": "WEB",
"url": "https://github.com/zenml-io/zenml/commit/bbf8496d049a7e23800bc31b87b10b4fefbebe18"
},
{
"type": "WEB",
"url": "https://github.com/zenml-io/zenml"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/zenml-remote-code-execution-via-cloudpicklematerializer"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/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-P662-9CJC-934W
Vulnerability from github – Published: 2026-03-25 18:31 – Updated: 2026-03-26 18:31Deserialization of Untrusted Data vulnerability in Mikado-Themes Halstein halstein allows Object Injection.This issue affects Halstein: from n/a through < 1.8.
{
"affected": [],
"aliases": [
"CVE-2026-32508"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-25T17:17:03Z",
"severity": "MODERATE"
},
"details": "Deserialization of Untrusted Data vulnerability in Mikado-Themes Halstein halstein allows Object Injection.This issue affects Halstein: from n/a through \u003c 1.8.",
"id": "GHSA-p662-9cjc-934w",
"modified": "2026-03-26T18:31:35Z",
"published": "2026-03-25T18:31:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32508"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/Wordpress/Theme/halstein/vulnerability/wordpress-halstein-theme-1-8-arbitrary-object-instantiation-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-P67F-Q4XM-7JG2
Vulnerability from github – Published: 2025-09-09 18:31 – Updated: 2026-04-28 21:35Deserialization of Untrusted Data vulnerability in webdevstudios Constant Contact for WordPress allows Object Injection. This issue affects Constant Contact for WordPress: from n/a through 4.1.1.
{
"affected": [],
"aliases": [
"CVE-2025-48101"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-09T17:15:47Z",
"severity": "HIGH"
},
"details": "Deserialization of Untrusted Data vulnerability in webdevstudios Constant Contact for WordPress allows Object Injection. This issue affects Constant Contact for WordPress: from n/a through 4.1.1.",
"id": "GHSA-p67f-q4xm-7jg2",
"modified": "2026-04-28T21:35:49Z",
"published": "2025-09-09T18:31:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-48101"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/constant-contact-api/vulnerability/wordpress-constant-contact-for-wordpress-plugin-4-1-1-php-object-injection-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-P68J-Q7HF-3QCP
Vulnerability from github – Published: 2026-08-28 18:35 – Updated: 2026-08-28 18:35Impact
Kustomize bake operations allow unsafe tag processing. This can lead to RCE type exploits on the rosco pods when doing kustomize bakes. This ONLY is possible when using Kustomize. The simple solution is to block kustomize operations and instead use another provider.
Workarounds
Disable kustomize bakes
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "io.spinnaker.rosco:rosco-manifests"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2025.3.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "io.spinnaker.rosco:rosco-manifests"
},
"ranges": [
{
"events": [
{
"introduced": "2025.4.0"
},
{
"fixed": "2025.4.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "io.spinnaker.rosco:rosco-manifests"
},
"ranges": [
{
"events": [
{
"introduced": "2026.0.0"
},
{
"fixed": "2026.0.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "io.spinnaker.rosco:rosco-manifests"
},
"ranges": [
{
"events": [
{
"introduced": "2026.1.0"
},
{
"fixed": "2026.1.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-55175"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2026-08-28T18:35:06Z",
"nvd_published_at": "2026-07-10T23:16:48Z",
"severity": "HIGH"
},
"details": "### Impact\nKustomize bake operations allow unsafe tag processing. This can lead to RCE type exploits on the rosco pods when doing kustomize bakes. This ONLY is possible when using Kustomize. The simple solution is to block kustomize operations and instead use another provider.\n\n### Workarounds\nDisable kustomize bakes",
"id": "GHSA-p68j-q7hf-3qcp",
"modified": "2026-08-28T18:35:06Z",
"published": "2026-08-28T18:35:06Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/spinnaker/spinnaker/security/advisories/GHSA-p68j-q7hf-3qcp"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55175"
},
{
"type": "WEB",
"url": "https://github.com/spinnaker/spinnaker/commit/2d75818b85cc4c35144d5e5ed45e7340fcab5dfe"
},
{
"type": "WEB",
"url": "https://github.com/spinnaker/spinnaker/commit/bbc30c9b9034a056e95f012fa1b34e9fd703cae7"
},
{
"type": "WEB",
"url": "https://github.com/spinnaker/spinnaker/commit/de5a7a05af35aee19eb71d289cd0b77f67509009"
},
{
"type": "WEB",
"url": "https://github.com/spinnaker/spinnaker/commit/df32d568e82519d9f3896fc9007baba0077c87fd"
},
{
"type": "WEB",
"url": "https://github.com/spinnaker/spinnaker/commit/f5cec213f8cf207843ed5a6929395960a1ca094f"
},
{
"type": "PACKAGE",
"url": "https://github.com/spinnaker/spinnaker"
},
{
"type": "WEB",
"url": "https://github.com/spinnaker/spinnaker/releases/tag/rosco-2025.3.4"
},
{
"type": "WEB",
"url": "https://github.com/spinnaker/spinnaker/releases/tag/rosco-2025.4.4"
},
{
"type": "WEB",
"url": "https://github.com/spinnaker/spinnaker/releases/tag/rosco-2026.0.3"
},
{
"type": "WEB",
"url": "https://github.com/spinnaker/spinnaker/releases/tag/rosco-2026.1.1"
},
{
"type": "WEB",
"url": "https://github.com/spinnaker/spinnaker/releases/tag/rosco-2026.2.0"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Spinnaker: Improper yaml processing on kustomize bake operations"
}
GHSA-P694-23Q3-RVRC
Vulnerability from github – Published: 2020-11-04 18:23 – Updated: 2022-03-18 20:16In Apache Synapse, by default no authentication is required for Java Remote Method Invocation (RMI). So Apache Synapse 3.0.1 or all previous releases (3.0.0, 2.1.0, 2.0.0, 1.2, 1.1.2, 1.1.1) allows remote code execution attacks that can be performed by injecting specially crafted serialized objects. And the presence of Apache Commons Collections 3.2.1 (commons-collections-3.2.1.jar) or previous versions in Synapse distribution makes this exploitable. To mitigate the issue, we need to limit RMI access to trusted users only. Further upgrading to 3.0.1 version will eliminate the risk of having said Commons Collection version. In Synapse 3.0.1, Commons Collection has been updated to 3.2.2 version.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.synapse:synapse-core"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2017-15708"
],
"database_specific": {
"cwe_ids": [
"CWE-502",
"CWE-74"
],
"github_reviewed": true,
"github_reviewed_at": "2020-11-04T18:21:43Z",
"nvd_published_at": "2017-12-11T15:29:00Z",
"severity": "CRITICAL"
},
"details": "In Apache Synapse, by default no authentication is required for Java Remote Method Invocation (RMI). So Apache Synapse 3.0.1 or all previous releases (3.0.0, 2.1.0, 2.0.0, 1.2, 1.1.2, 1.1.1) allows remote code execution attacks that can be performed by injecting specially crafted serialized objects. And the presence of Apache Commons Collections 3.2.1 (commons-collections-3.2.1.jar) or previous versions in Synapse distribution makes this exploitable. To mitigate the issue, we need to limit RMI access to trusted users only. Further upgrading to 3.0.1 version will eliminate the risk of having said Commons Collection version. In Synapse 3.0.1, Commons Collection has been updated to 3.2.2 version.",
"id": "GHSA-p694-23q3-rvrc",
"modified": "2022-03-18T20:16:31Z",
"published": "2020-11-04T18:23:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-15708"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/77f2accf240d25d91b47033e2f8ebec84ffbc6e6627112b2f98b66c9@%3Cdev.synapse.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r0fb289cd38c915b9a13a3376134f96222dd9100f1ef66b41631865c6@%3Ccommits.doris.apache.org%3E"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202107-37"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujan2020.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujul2020.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/102154"
}
],
"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": "Remote Code Execution in Apache Synapse"
}
GHSA-P695-J8CG-JQ46
Vulnerability from github – Published: 2024-04-12 12:30 – Updated: 2024-04-12 12:30WPvivid Backup & Migration Plugin for WordPress is vulnerable to PHAR Deserialization in all versions up to, and including, 0.9.99 via deserialization of untrusted input at the wpvividstg_get_custom_exclude_path_free action. This is due to the plugin not providing sufficient path validation on the tree_node[node][id] parameter. This makes it possible for authenticated attackers, with admin-level access and above, to call files using a PHAR wrapper that will deserialize the data and call arbitrary PHP Objects. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.
{
"affected": [],
"aliases": [
"CVE-2024-3054"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-12T10:15:08Z",
"severity": "HIGH"
},
"details": "WPvivid Backup \u0026 Migration Plugin for WordPress is vulnerable to PHAR Deserialization in all versions up to, and including, 0.9.99 via deserialization of untrusted input at the wpvividstg_get_custom_exclude_path_free action. This is due to the plugin not providing sufficient path validation on the tree_node[node][id] parameter. This makes it possible for authenticated attackers, with admin-level access and above, to call files using a PHAR wrapper that will deserialize the data and call arbitrary PHP Objects. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.",
"id": "GHSA-p695-j8cg-jq46",
"modified": "2024-04-12T12:30:33Z",
"published": "2024-04-12T12:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-3054"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3067224%40wpvivid-backuprestore\u0026new=3067224%40wpvivid-backuprestore\u0026sfp_email=\u0026sfph_mail="
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/bf26fc68-9fd4-4e4e-b34f-c947d95891f9?source=cve"
}
],
"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"
}
]
}
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.