Common Weakness Enumeration

CWE-502

Allowed

Deserialization of Untrusted Data

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

5789 vulnerabilities reference this CWE, most recent first.

CVE-2026-94390 (GCVE-0-2026-94390)

Vulnerability from cvelistv5 – Published: 2026-10-01 14:33 – Updated: 2026-10-01 16:03
VLAI
Title
WordPress Hide Shipping Method For WooCommerce plugin <= 1.5.4 - PHP Object Injection vulnerability
Summary
Editor PHP Object Injection in Hide Shipping Method For WooCommerce <= 1.5.4 versions.
Severity
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 16:03 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack CNA under the mitre root
CNA scorecard C 75/100 over 2962 records in the last 180 days details
References
Impacted products
Vendor Product Version
Dotstore Hide Shipping Method For WooCommerce Affected: n/a , ≤ 1.5.4 (custom)
Create a notification for this product.
Credits
Ananda Dhakal (Patchstack) | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-94301 (GCVE-0-2026-94301)

Vulnerability from cvelistv5 – Published: 2026-09-21 14:35 – Updated: 2026-09-22 03:55
VLAI
Title
Apache MINA: CVE-2026-47065 resolveProxyClass fix missing from 2.0.X and 2.1.X branches (2.0.30 / 2.1.14) ZDRES-232
Summary
The fix for CVE-2026-47065/ZDRES-232 ("resolveProxyClass Not Overridden - acceptMatchers Filter Bypass via java.lang.reflect.Proxy"), released on 2026-06-02 and announced as "Fully addressed" in MINA 2.2.8, 2.1.13 and 2.0.29, was committed to the  2.2.X branch only. The 2.0.X and 2.1.X maintenance branches never received the resolveProxyClass() override, so the 2.0.29 and 2.1.13 artifacts listed as fixed -- and every later release on those lines, up to and including the current 2.0.30 and 2.1.14 -- remain vulnerable to the exact allow-list bypass that CVE-2026-47065 was meant to close.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-21 00:00 UTC
CWE
  • CWE-502 - Deserialization of untrusted data
Assigner
apache CNA under the mitre root
CNA scorecard B 76/100 over 1024 records in the last 180 days details
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache MINA Affected: 2.0.0 , < 2.0.31 (semver)
Affected: 2.1.0 , < 2.1.15 (semver)
Create a notification for this product.
Credits
tonghuaroot
Show details on NVD website
To clipboard 

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CVE-2026-94122 (GCVE-0-2026-94122)

Vulnerability from cvelistv5 – Published: 2026-09-30 12:27 – Updated: 2026-09-30 13:27
VLAI
Title
WordPress Responsive Slider Gallery plugin <= 1.5.5 - PHP Object Injection vulnerability
Summary
Editor PHP Object Injection in Responsive Slider Gallery <= 1.5.5 versions.
Severity
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 13:09 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack CNA under the mitre root
CNA scorecard C 75/100 over 2962 records in the last 180 days details
References
Impacted products
Vendor Product Version
A WP Life Responsive Slider Gallery Affected: n/a , ≤ 1.5.5 (custom)
Create a notification for this product.
Credits
Ananda Dhakal (Patchstack) | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-94121 (GCVE-0-2026-94121)

Vulnerability from cvelistv5 – Published: 2026-09-30 12:27 – Updated: 2026-09-30 13:27
VLAI
Title
WordPress 10Web Booster – Website speed optimization, Cache & Page Speed optimizer plugin <= 2.33.6 - PHP Object Injection vulnerability
Summary
Contributor PHP Object Injection in 10Web Booster – Website speed optimization, Cache & Page Speed optimizer <= 2.33.6 versions.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 13:09 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack CNA under the mitre root
CNA scorecard C 75/100 over 2962 records in the last 180 days details
References
Impacted products
Credits
Ananda Dhakal (Patchstack) | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-94093 (GCVE-0-2026-94093)

Vulnerability from cvelistv5 – Published: 2026-09-20 22:45 – Updated: 2026-09-21 16:21
VLAI
Title
DLR-RM stable-baselines3 save_util.py VecNormalize.load deserialization
Summary
A security vulnerability has been detected in DLR-RM stable-baselines3 up to 2.9.0. This affects the function PPO.load/load_replay_buffer/VecNormalize.load of the file save_util.py. Such manipulation leads to deserialization. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. In v2.9.0 the PyTorch tensor load path is hardened (weights_only=True), but that hardening was later reverted on master via PR #1913 "Hotfix: revert loading with weights_only=True" [blocked] to fix PyTorch 1.13 compat - so even the one "safe" path is inconsistent across versions. #2281 was closed as a duplicate of #1831 since both are unsafe pickle deserialization - but #1831's fix (PR #41) only gated the Hugging Face Hub loader in the separate huggingface_sb3 package. This finding covers the core stable_baselines3 load APIs (PPO.load, load_replay_buffer, VecNormalize.load), which have no safe mode or gate and remained exploitable in v2.9.0 until the outstanding hardening (PR #2264) ships.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
6.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-21 16:20 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 82/100 over 3932 records in the last 180 days details
References
Impacted products
Vendor Product Version
DLR-RM stable-baselines3 Affected: 2.0
Affected: 2.1
Affected: 2.2
Affected: 2.3
Affected: 2.4
Affected: 2.5
Affected: 2.6
Affected: 2.7
Affected: 2.8
Affected: 2.9.0
    cpe:2.3:a:dlr-rm:stable-baselines3:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
__lbz__ (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-94092 (GCVE-0-2026-94092)

Vulnerability from cvelistv5 – Published: 2026-09-20 22:30 – Updated: 2026-09-24 12:40
VLAI
Title
dmlc dgl utils.py _read_torch_data deserialization
Summary
A vulnerability was detected in dmlc dgl up to 2.1.0. This impacts the function load_info/_read_torch_data of the file utils.py. Performing a manipulation of the argument path results in deserialization. The attack can be initiated remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Severity
5.1 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
5.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
5.5 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-24 12:40 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 82/100 over 3932 records in the last 180 days details
References
URL Tags
https://vuldb.com/vuln/408022 vdb-entrytechnical-description
https://vuldb.com/vuln/408022/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-94092 third-party-advisory
https://vuldb.com/submit/952703 third-party-advisory
https://github.com/dmlc/dgl/issues/7932 exploitissue-tracking
https://github.com/dmlc/dgl/ product
Impacted products
Vendor Product Version
dmlc dgl Affected: 2.0
Affected: 2.1.0
    cpe:2.3:a:dmlc:dgl:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
__lbz__ (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-94091 (GCVE-0-2026-94091)

Vulnerability from cvelistv5 – Published: 2026-09-20 22:15 – Updated: 2026-09-21 10:58
VLAI
Title
piskvorky gensim Model Loader utils.py load deserialization
Summary
A weakness has been identified in piskvorky gensim up to 4.4.0. The impacted element is the function Load of the file gensim/utils.py of the component Model Loader. This manipulation of the argument fname causes deserialization. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. Maintainer closed #3663 same-day with no comment, PR, or fix; repo's last push (2025-11-01) predates the report, so the unsafe pickle.load in SaveLoad.load remains unguarded at develop HEAD.
Severity
5.1 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
5.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
5.5 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-21 10:57 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 82/100 over 3932 records in the last 180 days details
References
URL Tags
https://vuldb.com/vuln/408020 vdb-entrytechnical-description
https://vuldb.com/vuln/408020/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-94091 third-party-advisory
https://vuldb.com/submit/952644 third-party-advisory
https://github.com/piskvorky/gensim/issues/3663 exploitissue-tracking
https://github.com/piskvorky/gensim/ product
Impacted products
Vendor Product Version
piskvorky gensim Affected: 4.0
Affected: 4.1
Affected: 4.2
Affected: 4.3
Affected: 4.4.0
    cpe:2.3:a:piskvorky:gensim:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
meraklbz (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-94076 (GCVE-0-2026-94076)

Vulnerability from cvelistv5 – Published: 2026-09-30 12:26 – Updated: 2026-09-30 13:27
VLAI
Title
WordPress SEO Plugin by Squirrly SEO plugin <= 14.2.5 - PHP Object Injection vulnerability
Summary
Contributor PHP Object Injection in SEO Plugin by Squirrly SEO <= 14.2.5 versions.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 13:06 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack CNA under the mitre root
CNA scorecard C 75/100 over 2962 records in the last 180 days details
References
Impacted products
Vendor Product Version
SEO Squirrly SEO Plugin by Squirrly SEO Affected: n/a , ≤ 14.2.5 (custom)
Create a notification for this product.
Credits
Ananda Dhakal (Patchstack) | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-94065 (GCVE-0-2026-94065)

Vulnerability from cvelistv5 – Published: 2026-10-09 14:00 – Updated: 2026-10-11 12:13
VLAI
Title
WordPress ColorFolio theme <= 1.3 - PHP Object Injection vulnerability
Summary
Deserialization of Untrusted Data vulnerability in BuddhaThemes ColorFolio colorit allows Object Injection.This issue affects ColorFolio: from n/a through 1.3.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-11 12:03 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack CNA under the mitre root
CNA scorecard C 75/100 over 2962 records in the last 180 days details
References
Impacted products
Vendor Product Version
BuddhaThemes ColorFolio Affected: 0 , ≤ 1.3 (custom)
Create a notification for this product.
Date Public
2026-10-07 13:07
Credits
Tran Nguyen Bao Khanh (VCI - VNPT Cyber Immunity) | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-94064 (GCVE-0-2026-94064)

Vulnerability from cvelistv5 – Published: 2026-10-09 14:00 – Updated: 2026-10-11 12:13
VLAI
Title
WordPress Neo | Barber Shop WordPress Theme theme <= 3.5 - PHP Object Injection vulnerability
Summary
Deserialization of Untrusted Data vulnerability in BuddhaThemes Neo | Barber Shop WordPress Theme neocut allows Object Injection.This issue affects Neo | Barber Shop WordPress Theme: from n/a through 3.5.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-11 12:03 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack CNA under the mitre root
CNA scorecard C 75/100 over 2962 records in the last 180 days details
References
Impacted products
Date Public
2026-10-07 13:03
Credits
Tran Nguyen Bao Khanh (VCI - VNPT Cyber Immunity) | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-502",
              "description": "Deserialization of Untrusted Data",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-09T14:00:10.022Z",
        "orgId": "21595511-bba5-4825-b968-b78d1f9984a3",
        "shortName": "Patchstack"
      },
      "references": [
        {
          "tags": [
            "vdb-entry"
          ],
          "url": "https://patchstack.com/database/wordpress/theme/neocut/vulnerability/wordpress-neo-barber-shop-wordpress-theme-theme-3-5-php-object-injection-vulnerability?_s_id=cve"
        }
      ],
      "title": "WordPress Neo | Barber Shop WordPress Theme theme \u003c= 3.5 - PHP Object Injection vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3",
    "assignerShortName": "Patchstack",
    "cveId": "CVE-2026-94064",
    "datePublished": "2026-10-09T14:00:10.022Z",
    "dateReserved": "2026-09-20T00:21:51.840Z",
    "dateUpdated": "2026-10-11T12:13:41.160Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}
Mitigation
Architecture and Design Implementation

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
Implementation

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
Implementation

Explicitly define a final object() to prevent deserialization.

Mitigation
Architecture and Design Implementation
  • 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
Implementation

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
Architecture and Design Implementation

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
Operation

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.

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