CWE-502

Deserialization of Untrusted Data

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

CVE-2026-42211 (GCVE-0-2026-42211)

Vulnerability from cvelistv5 – Published: 2026-06-02 18:18 – Updated: 2026-06-03 14:08
VLAI
Title
React Router's vendored turbo-stream v2 allows arbitrary constructor invocation via TYPE_ERROR deserialization leading to Unauth RCE
Summary
React Router is a router for React. In versions 7.0.0 through 7.14.1, when using Framework Mode, a combination of steps could potentially allow unauthorized remote code execution (RCE) through external requests. This attack requires the application code to have an existing prototype pollution vulnerability, which can then be leveraged in a 2-step attack where the second step triggers unauthorized RCE on the remote server. This does not impact applications using Declarative Mode (`<BrowserRouter>`) or Data Mode (`createBrowserRouter/<RouterProvider>`). This is patched in version 7.14.2.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
remix-run react-router Affected: >= 7.0.0, < 7.14.2
Create a notification for this product.
Show details on NVD website
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CVE-2026-42359 (GCVE-0-2026-42359)

Vulnerability from cvelistv5 – Published: 2026-06-01 07:49 – Updated: 2026-06-02 13:03
VLAI
Title
Apache Airflow: Authenticated RCE via XCom PATCH endpoint — XComUpdateBody missing FORBIDDEN_XCOM_KEYS validator
Summary
A bug in Apache Airflow's XCom PATCH endpoint `PATCH /api/v2/xcomEntries/{key}` allowed an authenticated UI/API user with XCom write permission on a Dag to set XCom entries under reserved key names (e.g. `return_value`) that the matching POST endpoint already validated against `FORBIDDEN_XCOM_KEYS`. The endpoint also accepted serialized payload shapes the triggerer's deserializer treats as code; combined, this allowed RCE on the triggerer when the affected task next deferred. Affects deployments where untrusted users have XCom write permission on Dags that defer to the triggerer. This is a fix-bypass of CVE-2026-33858: PR #64148 added the `FORBIDDEN_XCOM_KEYS` validator only on the POST/set path; the PATCH path was not covered. Users who already upgraded for CVE-2026-33858 should additionally upgrade to `apache-airflow` 3.2.2 or later to cover the PATCH-path bypass.
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 (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Airflow Affected: 3.2.0 , < 3.2.2 (semver)
Create a notification for this product.
Credits
Jeff Vier (@boinger) Anisto Mejin (Izat) Venkatraman Kumar (r3dw0lfsec), Securin Jarek Potiuk
Show details on NVD website
To clipboard 

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CVE-2026-4266 (GCVE-0-2026-4266)

Vulnerability from cvelistv5 – Published: 2026-03-30 12:38 – Updated: 2026-03-31 03:55
VLAI
Title
WatchGuard Firebox Insecure Deserialization in Fireware Access Portal
Summary
An Insecure Deserialization vulnerability in WatchGuard Fireware OS allows an attacker that has obtained write access to the local filesystem through another vulnerability to execute arbitrary code in the context of the portald user.This issue affects Fireware OS: 12.1 through 12.11.8 and 2025.1 through 2026.1.2. Note, this vulnerability does not affect Firebox platforms that do not support the Access Portal feature, including the T-15 and T-35.
Severity
8.4 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
WatchGuard Fireware OS Affected: 12.1 , ≤ 12.11.8 (semver)
Affected: 2025.1 , ≤ 2026.1.2 (semver)
Create a notification for this product.
Credits
btaol
Show details on NVD website
To clipboard 

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CVE-2026-42687 (GCVE-0-2026-42687)

Vulnerability from cvelistv5 – Published: 2026-06-15 20:18 – Updated: 2026-06-16 01:24
VLAI
Title
WordPress EventPrime plugin <= 4.3.2.1 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in EventPrime <= 4.3.2.1 versions.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
EventPrime EventPrime Affected: n/a , ≤ 4.3.2.1 (custom)
Create a notification for this product.
Credits
hhhai | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-42778 (GCVE-0-2026-42778)

Vulnerability from cvelistv5 – Published: 2026-05-01 10:01 – Updated: 2026-05-02 03:55
VLAI
Title
Apache MINA: CWE-502 Deserialization of Untrusted Data (take 2)
Summary
The fix for CVE-2026-41409 was not applied to the 2.1.X and 2.2.X branches. Here was the original issue description: The fix for CVE-2024-52046 in Apache MINA AbstractIoBuffer.getObject() was incomplete. The classname allowlist of classes allowed to be deserialized was applied too late after a static initializer in a class to be read might already have been executed. Affected versions are Apache MINA 2.1.0 <= 2.1.11, and 2.2.0 <= 2.2.6. The problem is resolved in Apache MINA 2.1.12, and 2.2.7 by applying the classname allowlist earlier. Affected are applications using Apache MINA that call IoBuffer.getObject(). Applications using Apache MINA are advised to upgrade The fix for CVE-2024-52046 in Apache MINA AbstractIoBuffer.getObject() was incomplete. The classname allowlist of classes allowed to be deserialized was applied too late after a static initializer in a class to be read might already have been executed. Affected versions are Apache MINA 2.1.0 <= 2.1.110, and 2.2.0 <= 2.2.6. The problem is resolved in Apache MINA 2.1.12, and 2.2.7 by applying the classname allowlist earlier. Affected are applications using Apache MINA that call IoBuffer.getObject(). Applications using Apache MINA are advised to upgrade
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 (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache MINA Affected: 2.2.X , ≤ 2.2.6 (semver)
Affected: 2.1.X , ≤ 2.1.11 (semver)
Create a notification for this product.
Credits
Venkatraman Kumar, Securin
Show details on NVD website
To clipboard 

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CVE-2026-42779 (GCVE-0-2026-42779)

Vulnerability from cvelistv5 – Published: 2026-05-01 10:00 – Updated: 2026-05-02 03:55
VLAI
Title
Apache MINA: AbstractIoBuffer.resolveClass() null-clazz Branch Skips acceptMatchers Filter — Full Object Deserialization RCE (take 2)
Summary
The fix for CVE-2026-41635 was not applied to the 2.1.X and 2.2.X branches. Here was the original issue description: Apache MINA's AbstractIoBuffer.resolveClass() contains two branches, one of them (for static classes or primitive types) does not check the class at all, bypassing the classname allowlist and allowing arbitrary code to be executed. The fix checks if the class is present in the accepted class filter before calling Class.forName(). Affected versions are Apache MINA 2.1.0 <= 2.1.11, and 2.2.0 <= 2.2.6. The problem is resolved in Apache MINA 2.1.12, and 2.2.7 by applying the classname allowlist earlier. Affected are applications using Apache MINA that call IoBuffer.getObject(). Applications using Apache MINA are advised to upgrade.
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 (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache MINA Affected: 2.2.X , ≤ 2.2.6 (semver)
Affected: 2.1.X , ≤ 2.1.11 (semver)
Create a notification for this product.
Credits
Venkatraman Kumar, Securin
Show details on NVD website
To clipboard 

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CVE-2026-43633 (GCVE-0-2026-43633)

Vulnerability from cvelistv5 – Published: 2026-05-19 13:29 – Updated: 2026-05-19 14:00 X_Open Source
VLAI
Title
HestiaCP 1.9.0-1.9.4 Deserialization RCE via Web Terminal
Summary
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.
Severity
9.5 (Critical)
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
10 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
hestiacp hestiacp Affected: 1.9.0 , ≤ 1.9.4 (semver)
Unaffected: 854d71b3c1737b0a0d0cc55c926008ffe1f6719b (git)
Create a notification for this product.
Date Public
2026-03-09 00:00
Credits
sutol divinity76
Show details on NVD website
To clipboard 

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CVE-2026-44126 (GCVE-0-2026-44126)

Vulnerability from cvelistv5 – Published: 2026-05-08 13:15 – Updated: 2026-05-18 16:16
VLAI
Title
Insecure deserialization
Summary
SEPPmail Secure Email Gateway before version 15.0.4 insecurely deserializes untrusted data, which can be reached from the new GINA UI and may allow unauthenticated remote attackers to execute code via a crafted serialized object.
Severity
9.2 (Critical)
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
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of untrusted data
Assigner
References
Impacted products
Vendor Product Version
SEPPmail AG Secure Email Gateway Affected: 0 , < 15.0.4 (custom)
Create a notification for this product.
Credits
Dario Weiss of InfoGuard Labs
Show details on NVD website
To clipboard 

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CVE-2026-4416 (GCVE-0-2026-4416)

Vulnerability from cvelistv5 – Published: 2026-03-30 07:52 – Updated: 2026-03-30 15:08
VLAI
Title
GIGABYTE｜Performance Library - Insecure Deserialization
Summary
The Performance Library component of Gigabyte Control Center has an Insecure Deserialization vulnerability. Authenticated local attackers can send a malicious serialized payload to the EasyTune Engine service, resulting in privilege escalation.
Severity
8.5 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of untrusted data
Assigner
References
Impacted products
Vendor Product Version
GIGABYTE Performance Library Affected: 0 , < 25.12.31.01 (custom)
Create a notification for this product.
Date Public
2026-03-30 07:47
Show details on NVD website
To clipboard 

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CVE-2026-44501 (GCVE-0-2026-44501)

Vulnerability from cvelistv5 – Published: 2026-05-14 15:41 – Updated: 2026-05-14 18:22
VLAI
Title
DataHub OIDC REDIRECT_URL Cookie Deserialization Vulnerability
Summary
DataHub is an open-source metadata platform. Prior to 1.5.0.3, The DataHub frontend (datahub-frontend-react) deserializes attacker-controlled Java objects from the REDIRECT_URL HTTP cookie during the OIDC callback flow, with no integrity protection (no HMAC, no encryption). This is a Deserialization of Untrusted Data vulnerability (CWE-502) affecting the GET /callback/oidc endpoint. Successful exploitation requires a valid user account in the configured OIDC identity provider This vulnerability is fixed in 1.5.0.3.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
datahub-project datahub Affected: < 1.5.0.3
Create a notification for this product.
Show details on NVD website
To clipboard 

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      "references": [
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          "name": "https://github.com/datahub-project/datahub/security/advisories/GHSA-rjf9-p49v-42c4",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/datahub-project/datahub/security/advisories/GHSA-rjf9-p49v-42c4"
        }
      ],
      "source": {
        "advisory": "GHSA-rjf9-p49v-42c4",
        "discovery": "UNKNOWN"
      },
      "title": "DataHub OIDC REDIRECT_URL Cookie Deserialization Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-44501",
    "datePublished": "2026-05-14T15:41:43.706Z",
    "dateReserved": "2026-05-06T18:28:20.886Z",
    "dateUpdated": "2026-05-14T18:22:31.914Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}
Mitigation

Phases: Architecture and Design, Implementation

Description:

  • 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

Phase: Implementation

Description:

  • 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

Phase: Implementation

Description:

  • Explicitly define a final object() to prevent deserialization.
Mitigation

Phases: Architecture and Design, Implementation

Description:

  • 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

Phase: Implementation

Description:

  • 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

Phases: Architecture and Design, Implementation

Description:

  • 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 ID: MIT-29

Phase: Operation

Strategy: Firewall

Description:

  • 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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