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CWE-1321
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.
CVE-2026-25754 (GCVE-0-2026-25754)
Vulnerability from cvelistv5 – Published: 2026-02-06 22:48 – Updated: 2026-02-09 15:26
VLAI
EPSS
VEX
Title
AdonisJS multipart body parsing has Prototype Pollution issue
Summary
AdonisJS is a TypeScript-first web framework. Prior to versions 10.1.3 and 11.0.0-next.9, a prototype pollution vulnerability in AdonisJS multipart form-data parsing may allow a remote attacker to manipulate object prototypes at runtime. This issue has been patched in versions 10.1.3 and 11.0.0-next.9.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/adonisjs/core/security/advisor… | x_refsource_CONFIRM |
| https://github.com/adonisjs/bodyparser/commit/40e… | x_refsource_MISC |
| https://github.com/adonisjs/bodyparser/releases/t… | x_refsource_MISC |
Impacted products
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CVE-2026-25881 (GCVE-0-2026-25881)
Vulnerability from cvelistv5 – Published: 2026-02-09 21:12 – Updated: 2026-02-10 15:58
VLAI
EPSS
VEX
Title
@nyariv/sandboxjs has host prototype pollution from sandbox via array intermediary (sandbox escape)
Summary
SandboxJS is a JavaScript sandboxing library. Prior to 0.8.31, a sandbox escape vulnerability allows sandboxed code to mutate host built-in prototypes by laundering the isGlobal protection flag through array literal intermediaries. When a global prototype reference (e.g., Map.prototype, Set.prototype) is placed into an array and retrieved, the isGlobal taint is stripped, permitting direct prototype mutation from within the sandbox. This results in persistent host-side prototype pollution and may enable RCE in applications that use polluted properties in sensitive sinks (example gadget: execSync(obj.cmd)). This vulnerability is fixed in 0.8.31.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/nyariv/SandboxJS/security/advi… | x_refsource_CONFIRM |
| https://github.com/nyariv/SandboxJS/commit/f369f8… | x_refsource_MISC |
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CVE-2026-26021 (GCVE-0-2026-26021)
Vulnerability from cvelistv5 – Published: 2026-02-11 21:18 – Updated: 2026-02-12 21:16
VLAI
EPSS
VEX
Title
Prototype pollution in set-in
Summary
set-in provides the set value of nested associative structure given array of keys. A prototype pollution vulnerability exists in the the npm package set-in (>=2.0.1, < 2.0.5). Despite a previous fix that attempted to mitigate prototype pollution by checking whether user input contained a forbidden key, it is still possible to pollute Object.prototype via a crafted input using Array.prototype. This has been fixed in version 2.0.5.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/ahdinosaur/set-in/security/adv… | x_refsource_CONFIRM |
| https://github.com/ahdinosaur/set-in/commit/b8e1d… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ahdinosaur | set-in |
Affected:
>= 2.0.1, < 2.0.5
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CVE-2026-27212 (GCVE-0-2026-27212)
Vulnerability from cvelistv5 – Published: 2026-02-21 05:43 – Updated: 2026-02-24 18:53
VLAI
EPSS
VEX
Title
Swiper has a Prototype Pollution Vulnerability
Summary
Swiper is a free and mobile touch slider with hardware accelerated transitions and native behavior. Versions 6.5.1 through 12.1.1 have a Prototype pollution vulnerability. The vulnerability resides in line 94 of shared/utils.mjs, where the indexOf() function is used to check whether user provided input contain forbidden strings. Despite a previous fix that attempted to mitigate prototype pollution by checking whether user input contained a forbidden key, it is still possible to pollute Object.prototype via a crafted input using Array.prototype. The exploit works across Windows and Linux and on Node and Bun runtimes. Any application that processes attacker-controlled input using this package may be affected by the following: Authentication Bypass, Denial of Service and RCE. This issue is fixed in version 12.1.2.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/nolimits4web/swiper/security/a… | x_refsource_CONFIRM |
| https://github.com/nolimits4web/swiper/commit/d3e… | x_refsource_MISC |
| https://github.com/nolimits4web/swiper/releases/t… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| nolimits4web | swiper |
Affected:
>= 6.5.1, < 12.1.2
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CVE-2026-27524 (GCVE-0-2026-27524)
Vulnerability from cvelistv5 – Published: 2026-03-18 01:34 – Updated: 2026-06-23 16:14 X_Open Source
VLAI
EPSS
VEX
Title
OpenClaw < 2026.2.21 - Prototype Pollution via Debug Override Path
Summary
OpenClaw versions prior to 2026.2.21 accept prototype-reserved keys in runtime /debug set override object values, allowing prototype pollution attacks. Authorized /debug set callers can inject __proto__, constructor, or prototype keys to manipulate object prototypes and bypass command gate restrictions.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/openclaw/openclaw/security/adv… | vendor-advisory |
| https://github.com/openclaw/openclaw/commit/fbb79… | patch |
| https://www.vulncheck.com/advisories/openclaw-pro… | third-party-advisory |
Impacted products
Date Public
2026-02-21 00:00
Credits
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CVE-2026-27837 (GCVE-0-2026-27837)
Vulnerability from cvelistv5 – Published: 2026-02-26 00:19 – Updated: 2026-02-26 14:40
VLAI
EPSS
VEX
Title
Dottie vulnerable to prototype pollution bypass via non-first path segments in set() and transform()
Summary
Dottie provides nested object access and manipulation in JavaScript. Versions 2.0.4 through 2.0.6 contain an incomplete fix for CVE-2023-26132. The prototype pollution guard introduced in commit `7d3aee1` only validates the first segment of a dot-separated path, allowing an attacker to bypass the protection by placing `__proto__` at any position other than the first. Both `dottie.set()` and `dottie.transform()` are affected. Version 2.0.7 contains an updated fix to address the residual vulnerability.
Severity
6.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/mickhansen/dottie.js/security/… | x_refsource_CONFIRM |
| https://github.com/mickhansen/dottie.js/commit/7e… | x_refsource_MISC |
| https://github.com/advisories/GHSA-4gxf-g5gf-22h4 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| mickhansen | dottie.js |
Affected:
>= 2.0.4, < 2.0.7
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CVE-2026-28794 (GCVE-0-2026-28794)
Vulnerability from cvelistv5 – Published: 2026-03-06 05:02 – Updated: 2026-03-09 19:53
VLAI
EPSS
VEX
Title
oRPC: Prototype Pollution in `@orpc/client` via `StandardRPCJsonSerializer` Deserialization
Summary
oRPC is an tool that helps build APIs that are end-to-end type-safe and adhere to OpenAPI standards. Prior to version 1.13.6, a prototype pollution vulnerability exists in the RPC JSON deserializer of the @orpc/client package. The vulnerability allows unauthenticated, remote attackers to inject arbitrary properties into the global Object.prototype. Because this pollution persists for the lifetime of the Node.js process and affects all objects, it can lead to severe security breaches, including authentication bypass, denial of service, and potentially Remote Code Execution. This issue has been patched in version 1.13.6.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/middleapi/orpc/security/adviso… | x_refsource_CONFIRM |
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CVE-2026-29063 (GCVE-0-2026-29063)
Vulnerability from cvelistv5 – Published: 2026-03-06 18:25 – Updated: 2026-07-09 12:09
VLAI
EPSS
VEX
Title
Immutable.js: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in immutable
Summary
Immutable.js provides many Persistent Immutable data structures. Prior to versions 3.8.3, 4.3.7, and 5.1.5, Prototype Pollution is possible in immutable via the mergeDeep(), mergeDeepWith(), merge(), Map.toJS(), and Map.toObject() APIs. This issue has been patched in versions 3.8.3, 4.3.7, and 5.1.5.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
63 references
Impacted products
66 products
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CVE-2026-2950 (GCVE-0-2026-2950)
Vulnerability from cvelistv5 – Published: 2026-03-31 19:18 – Updated: 2026-04-01 13:43
VLAI
EPSS
VEX
Title
lodash vulnerable to Prototype Pollution via array path bypass in `_.unset` and `_.omit`
Summary
Impact:
Lodash versions 4.17.23 and earlier are vulnerable to prototype pollution in the _.unset and _.omit functions. The fix for (CVE-2025-13465: https://github.com/lodash/lodash/security/advisories/GHSA-xxjr-mmjv-4gpg) only guards against string key members, so an attacker can bypass the check by passing array-wrapped path segments. This allows deletion of properties from built-in prototypes such as Object.prototype, Number.prototype, and String.prototype.
The issue permits deletion of prototype properties but does not allow overwriting their original behavior.
Patches:
This issue is patched in 4.18.0.
Workarounds:
None. Upgrade to the patched version.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Assigner
References
1 reference
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| lodash | lodash |
Affected:
4.17.23 , < 4.18.0
(semver)
Unaffected: 4.18.0 (semver) |
|
| lodash | lodash-es |
Affected:
4.17.23 , < 4.18.0
(semver)
Unaffected: 4.18.0 (semver) |
|
| lodash | lodash-amd |
Affected:
4.17.23 , < 4.18.0
(semver)
Unaffected: 4.18.0 (semver) |
|
| lodash | lodash.unset |
Affected:
4.0.0 , < 4.18.0
(semver)
Unaffected: 4.18.0 (semver) |
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CVE-2026-2964 (GCVE-0-2026-2964)
Vulnerability from cvelistv5 – Published: 2026-02-23 01:02 – Updated: 2026-02-23 13:49
VLAI
EPSS
VEX
Title
higuma web-audio-recorder-js Dynamic Config Handling WebAudioRecorder.js extend prototype pollution
Summary
A vulnerability was identified in higuma web-audio-recorder-js 0.1/0.1.1. Impacted is the function extend in the library lib/WebAudioRecorder.js of the component Dynamic Config Handling. Such manipulation leads to improperly controlled modification of object prototype attributes. It is possible to launch the attack remotely. Attacks of this nature are highly complex. The exploitability is considered difficult. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.347331 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.347331 | signaturepermissions-required |
| https://vuldb.com/?submit.755221 | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| higuma | web-audio-recorder-js |
Affected:
0.1
Affected: 0.1.1 |
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"dataVersion": "5.2"
}
Mitigation
Phase: Implementation
Description:
- By freezing the object prototype first (for example, Object.freeze(Object.prototype)), modification of the prototype becomes impossible.
Mitigation
Phase: Architecture and Design
Description:
- By blocking modifications of attributes that resolve to object prototype, such as proto or prototype, this weakness can be mitigated.
Mitigation
Phase: Implementation
Strategy: Input Validation
Description:
- When handling untrusted objects, validating using a schema can be used.
Mitigation
Phase: Implementation
Description:
- By using an object without prototypes (via Object.create(null) ), adding object prototype attributes by accessing the prototype via the special attributes becomes impossible, mitigating this weakness.
Mitigation
Phase: Implementation
Description:
- Map can be used instead of objects in most cases. If Map methods are used instead of object attributes, it is not possible to access the object prototype or modify it.
CAPEC-1: Accessing Functionality Not Properly Constrained by ACLs
In applications, particularly web applications, access to functionality is mitigated by an authorization framework. This framework maps Access Control Lists (ACLs) to elements of the application's functionality; particularly URL's for web apps. In the case that the administrator failed to specify an ACL for a particular element, an attacker may be able to access it with impunity. An attacker with the ability to access functionality not properly constrained by ACLs can obtain sensitive information and possibly compromise the entire application. Such an attacker can access resources that must be available only to users at a higher privilege level, can access management sections of the application, or can run queries for data that they otherwise not supposed to.
CAPEC-180: Exploiting Incorrectly Configured Access Control Security Levels
An attacker exploits a weakness in the configuration of access controls and is able to bypass the intended protection that these measures guard against and thereby obtain unauthorized access to the system or network. Sensitive functionality should always be protected with access controls. However configuring all but the most trivial access control systems can be very complicated and there are many opportunities for mistakes. If an attacker can learn of incorrectly configured access security settings, they may be able to exploit this in an attack.
CAPEC-77: Manipulating User-Controlled Variables
This attack targets user controlled variables (DEBUG=1, PHP Globals, and So Forth). An adversary can override variables leveraging user-supplied, untrusted query variables directly used on the application server without any data sanitization. In extreme cases, the adversary can change variables controlling the business logic of the application. For instance, in languages like PHP, a number of poorly set default configurations may allow the user to override variables.