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.
5669 vulnerabilities reference this CWE, most recent first.
GHSA-6M95-66X2-X5HX
Vulnerability from github – Published: 2026-10-07 09:32 – Updated: 2026-10-07 09:32This vulnerability in Veeam Backup & Replication allows a Backup Viewer to execute arbitrary code as SYSTEM on the backup server.
{
"affected": [],
"aliases": [
"CVE-2025-64393"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-07T09:17:04Z",
"severity": "CRITICAL"
},
"details": "This vulnerability in Veeam Backup \u0026 Replication allows a Backup Viewer to execute arbitrary code as SYSTEM on the backup server.",
"id": "GHSA-6m95-66x2-x5hx",
"modified": "2026-10-07T09:32:20Z",
"published": "2026-10-07T09:32:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-64393"
},
{
"type": "WEB",
"url": "https://www.veeam.com/KB4934"
}
],
"schema_version": "1.4.0",
"severity": [
{
"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/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-6M9G-CW25-J9JC
Vulnerability from github – Published: 2025-01-14 18:32 – Updated: 2025-01-14 18:32Deserialization of untrusted data in Ivanti EPM before the 2024 January-2025 Security Update and 2022 SU6 January-2025 Security Update allows a remote unauthenticated attacker to achieve remote code execution. Local user interaction is required.
{
"affected": [],
"aliases": [
"CVE-2024-13163"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-01-14T18:15:27Z",
"severity": "HIGH"
},
"details": "Deserialization of untrusted data in Ivanti EPM before the 2024 January-2025 Security Update and 2022 SU6 January-2025 Security Update allows a remote unauthenticated attacker to achieve remote code execution. Local user interaction is required.",
"id": "GHSA-6m9g-cw25-j9jc",
"modified": "2025-01-14T18:32:01Z",
"published": "2025-01-14T18:32:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-13163"
},
{
"type": "WEB",
"url": "https://forums.ivanti.com/s/article/Security-Advisory-EPM-January-2025-for-EPM-2024-and-EPM-2022-SU6"
}
],
"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"
}
]
}
GHSA-6M9W-55HW-MFGV
Vulnerability from github – Published: 2026-09-01 18:30 – Updated: 2026-09-01 18:30NVIDIA Megatron Bridge contains a vulnerability where an attacker could cause a deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, data tampering, and information disclosure.
{
"affected": [],
"aliases": [
"CVE-2026-61769"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-01T16:17:10Z",
"severity": "HIGH"
},
"details": "NVIDIA Megatron Bridge contains a vulnerability where an attacker could cause a deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, data tampering, and information disclosure.",
"id": "GHSA-6m9w-55hw-mfgv",
"modified": "2026-09-01T18:30:42Z",
"published": "2026-09-01T18:30:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-61769"
},
{
"type": "WEB",
"url": "https://github.com/NVIDIA/product-security/tree/main/2026/5868"
},
{
"type": "WEB",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-61769"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-6MJ8-C74F-XJXV
Vulnerability from github – Published: 2025-03-27 12:30 – Updated: 2026-04-01 18:34Deserialization of Untrusted Data vulnerability in Cozmoslabs TranslatePress allows Object Injection. This issue affects TranslatePress: from n/a through 2.9.6.
{
"affected": [],
"aliases": [
"CVE-2025-30773"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-27T11:15:38Z",
"severity": "HIGH"
},
"details": "Deserialization of Untrusted Data vulnerability in Cozmoslabs TranslatePress allows Object Injection. This issue affects TranslatePress: from n/a through 2.9.6.",
"id": "GHSA-6mj8-c74f-xjxv",
"modified": "2026-04-01T18:34:06Z",
"published": "2025-03-27T12:30:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-30773"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/translatepress-multilingual/vulnerability/wordpress-translatepress-2-9-6-php-object-injection-vulnerability?_s_id=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"
}
]
}
GHSA-6MMM-6MQ6-XV92
Vulnerability from github – Published: 2025-05-13 18:30 – Updated: 2025-05-13 18:30Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code locally.
{
"affected": [],
"aliases": [
"CVE-2025-30382"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-13T17:16:00Z",
"severity": "HIGH"
},
"details": "Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code locally.",
"id": "GHSA-6mmm-6mq6-xv92",
"modified": "2025-05-13T18:30:56Z",
"published": "2025-05-13T18:30:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-30382"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-30382"
}
],
"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"
}
]
}
GHSA-6MPW-4JP8-FPFW
Vulnerability from github – Published: 2026-07-29 12:31 – Updated: 2026-07-29 12:31Apache Traffic Server mishandles on-disk cache fields and object lifetimes, corrupting state or crashing.
This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3.
Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.
{
"affected": [],
"aliases": [
"CVE-2026-58163"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-29T10:16:42Z",
"severity": "HIGH"
},
"details": "Apache Traffic Server mishandles on-disk cache fields and object lifetimes, corrupting state or crashing.\n\nThis issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3.\n\nUsers are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.",
"id": "GHSA-6mpw-4jp8-fpfw",
"modified": "2026-07-29T12:31:21Z",
"published": "2026-07-29T12:31:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58163"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/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-6MWH-FW4P-75FJ
Vulnerability from github – Published: 2022-05-24 22:00 – Updated: 2022-11-03 18:45By manipulating classpath asset file URLs, an attacker could guess the path to a known file in the classpath and have it downloaded. If the attacker found the file with the value of the tapestry.hmac-passphrase configuration symbol, most probably the webapp's AppModule class, the value of this symbol could be used to craft a Java deserialization attack, thus running malicious injected Java code. The vector would be the t:formdata parameter from the Form component.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.tapestry:tapestry-core"
},
"ranges": [
{
"events": [
{
"introduced": "5.4.0"
},
{
"fixed": "5.4.5"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2019-0195"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2022-11-03T18:45:32Z",
"nvd_published_at": "2019-09-16T16:15:00Z",
"severity": "CRITICAL"
},
"details": "By manipulating classpath asset file URLs, an attacker could guess the path to a known file in the classpath and have it downloaded. If the attacker found the file with the value of the tapestry.hmac-passphrase configuration symbol, most probably the webapp\u0027s AppModule class, the value of this symbol could be used to craft a Java deserialization attack, thus running malicious injected Java code. The vector would be the t:formdata parameter from the Form component.",
"id": "GHSA-6mwh-fw4p-75fj",
"modified": "2022-11-03T18:45:32Z",
"published": "2022-05-24T22:00:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-0195"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/5173c4eed06e2fca6fd5576ed723ff6bb1711738ec515cb51a04ab24@%3Cusers.tapestry.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/6c40c1e03d2131119f9b77882431a0050f02bf9cae9ee48b84d012df@%3Cusers.tapestry.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/a4092cb3bacb143571024e79c0016c039b6c982423daa33a7a5c794a@%3Cusers.tapestry.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r237ff7f286bda31682c254550c1ebf92b0ec61329b32fbeb2d1c8751@%3Cusers.tapestry.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r7d9c54beb1dc97dcccc58d9b5d31f0f7166f9a25ad1beba5f8091e0c@%3Ccommits.tapestry.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r87523dd07886223aa086edc25fe9b8ddb9c1090f7db25b068dc30843@%3Ccommits.tapestry.apache.org%3E"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2021/04/15/1"
}
],
"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": "Deserialization of Untrusted Data in Apache Tapestry"
}
GHSA-6MXW-WW5R-4FQQ
Vulnerability from github – Published: 2024-05-14 18:30 – Updated: 2024-05-14 18:30The Ditty plugin for WordPress is vulnerable to PHP Object Injection in all versions up to 3.1.38 via deserialization of untrusted input when adding a new ditty. This makes it possible for authenticated attackers, with contributor-level access and above, to inject a PHP Object. No known 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-2024-3954"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-14T15:42:37Z",
"severity": "HIGH"
},
"details": "The Ditty plugin for WordPress is vulnerable to PHP Object Injection in all versions up to 3.1.38 via deserialization of untrusted input when adding a new ditty. This makes it possible for authenticated attackers, with contributor-level access and above, to inject a PHP Object. No known 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-6mxw-ww5r-4fqq",
"modified": "2024-05-14T18:30:53Z",
"published": "2024-05-14T18:30:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-3954"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3081335%40ditty-news-ticker\u0026new=3081335%40ditty-news-ticker\u0026sfp_email=\u0026sfph_mail="
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/0f00b138-5c4b-4f75-94b1-82721cba2668?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"
}
]
}
GHSA-6P52-JR3Q-C94G
Vulnerability from github – Published: 2021-10-19 15:28 – Updated: 2024-10-07 14:45Impact
Nameko can be tricked to perform arbitrary code execution when deserialising a YAML config file. Example:
# malicious.yaml
!!python/object/new:type
args: ['z', !!python/tuple [], {'extend': !!python/name:exec }]
listitems: "__import__('os').system('cat /etc/passwd')"
$ nameko run --config malicious.yaml test
root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
bin:x:2:2:bin:/bin:/usr/sbin/nologin
sys:x:3:3:sys:/dev:/usr/sbin/nologin
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/usr/sbin/nologin
...
Patches
The problem was fixed in https://github.com/nameko/nameko/pull/722 and released in version 2.14.0, and in rc10 of the v3 pre-release.
Versions prior to 2.14.0, and v3.0.0rc0 through v3.0.0rc9 are still vulnerable.
Workarounds
The vulnerability is exploited by config files with malicious content. It can be avoided by only using config files that you trust.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "nameko"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.14.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 3.0.0rc9"
},
"package": {
"ecosystem": "PyPI",
"name": "nameko"
},
"ranges": [
{
"events": [
{
"introduced": "3.0.0rc0"
},
{
"fixed": "3.0.0rc10"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-41078"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2021-10-19T15:14:24Z",
"nvd_published_at": "2021-10-26T13:15:00Z",
"severity": "CRITICAL"
},
"details": "### Impact\n\nNameko can be tricked to perform arbitrary code execution when deserialising a YAML config file. Example:\n\n``` yaml\n# malicious.yaml\n!!python/object/new:type\nargs: [\u0027z\u0027, !!python/tuple [], {\u0027extend\u0027: !!python/name:exec }]\nlistitems: \"__import__(\u0027os\u0027).system(\u0027cat /etc/passwd\u0027)\"\n```\n\n``` shell\n$ nameko run --config malicious.yaml test\nroot:x:0:0:root:/root:/bin/bash\ndaemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin\nbin:x:2:2:bin:/bin:/usr/sbin/nologin\nsys:x:3:3:sys:/dev:/usr/sbin/nologin\nsync:x:4:65534:sync:/bin:/bin/sync\ngames:x:5:60:games:/usr/games:/usr/sbin/nologin\n... \n```\n\n### Patches\n\nThe problem was fixed in https://github.com/nameko/nameko/pull/722 and released in version 2.14.0, and in rc10 of the v3 pre-release.\n\nVersions prior to 2.14.0, and v3.0.0rc0 through v3.0.0rc9 are still vulnerable.\n\n### Workarounds\n\nThe vulnerability is exploited by config files with malicious content. It can be avoided by only using config files that you trust.",
"id": "GHSA-6p52-jr3q-c94g",
"modified": "2024-10-07T14:45:04Z",
"published": "2021-10-19T15:28:57Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/nameko/nameko/security/advisories/GHSA-6p52-jr3q-c94g"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-41078"
},
{
"type": "PACKAGE",
"url": "https://github.com/nameko/nameko"
},
{
"type": "WEB",
"url": "https://github.com/nameko/nameko/releases/tag/v2.14.0"
},
{
"type": "WEB",
"url": "https://github.com/nameko/nameko/releases/tag/v3.0.0-rc10"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/nameko/PYSEC-2021-383.yaml"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
"type": "CVSS_V4"
}
],
"summary": "Nameko Arbitrary code execution due to YAML deserialization"
}
GHSA-6P5W-GC4F-G298
Vulnerability from github – Published: 2026-09-30 18:33 – Updated: 2026-09-30 18:33Editor PHP Object Injection in Page Builder by SiteOrigin <= 2.36.0 versions.
{
"affected": [],
"aliases": [
"CVE-2026-97256"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-30T18:18:44Z",
"severity": "HIGH"
},
"details": "Editor PHP Object Injection in Page Builder by SiteOrigin \u003c= 2.36.0 versions.",
"id": "GHSA-6p5w-gc4f-g298",
"modified": "2026-09-30T18:33:52Z",
"published": "2026-09-30T18:33:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-97256"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/siteorigin-panels/vulnerability/wordpress-page-builder-by-siteorigin-plugin-2-36-0-php-object-injection-vulnerability?_s_id=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.