Common Weakness Enumeration
CWE-1321
AllowedImproperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Abstraction: Variant · Status: Incomplete
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.
781 vulnerabilities reference this CWE, most recent first.
CVE-2026-15699 (GCVE-0-2026-15699)
Vulnerability from cvelistv5 – Published: 2026-07-14 15:45 – Updated: 2026-07-14 17:52 X_Open Source
VLAI
EPSS
VEX
Title
spencermountain compromise Public Root API extend.js nlp.extend prototype pollution
Summary
A vulnerability was identified in spencermountain compromise up to 14.15.1. Affected is the function nlp.extend of the file src/API/extend.js of the component Public Root API. The manipulation of the argument plugin leads to improperly controlled modification of object prototype attributes. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. The identifier of the patch is b4644ab7179700df0607521f61c1ee9b5f78d89d. Applying a patch is the recommended action to fix this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/378246 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/378246/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-15699 | third-party-advisory |
| https://vuldb.com/submit/856016 | third-party-advisory |
| https://github.com/spencermountain/compromise/iss… | exploitissue-tracking |
| https://github.com/spencermountain/compromise/com… | patch |
| https://github.com/spencermountain/compromise/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| spencermountain | compromise |
Affected:
14.15.0
Affected: 14.15.1 cpe:2.3:a:spencermountain:compromise:*:*:*:*:*:*:*:* |
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CVE-2026-15698 (GCVE-0-2026-15698)
Vulnerability from cvelistv5 – Published: 2026-07-14 15:30 – Updated: 2026-07-14 16:26 X_Open Source
VLAI
EPSS
VEX
Title
kofrasa mingo Update API updateMany prototype pollution
Summary
A vulnerability was determined in kofrasa mingo up to 7.2.1. This impacts the function update/updateOne/updateMany of the component Update API. Executing a manipulation of the argument Set can lead to improperly controlled modification of object prototype attributes. The attack may be launched remotely. Upgrading to version 7.2.2 will fix this issue. This patch is called fadc398251792c2ba441cbc539f359fc7943c0c2. It is recommended to upgrade the affected component.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/378245 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/378245/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-15698 | third-party-advisory |
| https://vuldb.com/submit/856014 | third-party-advisory |
| https://github.com/kofrasa/mingo/issues/606 | issue-tracking |
| https://github.com/kofrasa/mingo/commit/fadc39825… | patch |
| https://github.com/kofrasa/mingo/releases/tag/7.2.2 | patch |
| https://github.com/kofrasa/mingo/ | product |
Impacted products
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CVE-2026-15697 (GCVE-0-2026-15697)
Vulnerability from cvelistv5 – Published: 2026-07-14 15:15 – Updated: 2026-07-15 14:47
VLAI
EPSS
VEX
Title
svgdotjs svg.js npm Package API EventTarget.on prototype pollution
Summary
A vulnerability was found in svgdotjs svg.js up to 3.2.5. This affects the function EventTarget.on of the file svgdotjs/svg.js of the component npm Package API. Performing a manipulation results in improperly controlled modification of object prototype attributes. The attack may be initiated remotely. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/378244 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/378244/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-15697 | third-party-advisory |
| https://vuldb.com/submit/856013 | third-party-advisory |
| https://github.com/svgdotjs/svg.js/issues/1343 | issue-tracking |
| https://github.com/svgdotjs/svg.js/ | product |
Impacted products
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CVE-2026-15607 (GCVE-0-2026-15607)
Vulnerability from cvelistv5 – Published: 2026-07-13 23:00 – Updated: 2026-07-15 15:49 X_Open Source
VLAI
EPSS
VEX
Title
tanstack db Alias Path select.ts select prototype pollution
Summary
A vulnerability was detected in tanstack db up to 0.6.8. Affected by this vulnerability is the function select of the file src/query/compiler/select.ts of the component Alias Path Handler. The manipulation results in improperly controlled modification of object prototype attributes. The attack may be launched remotely. The exploit is now public and may be used. The patch is identified as ac09b1177a100eafa85cba3cd09dd1f53f933ded. A patch should be applied to remediate this issue.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/378115 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/378115/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-15607 | third-party-advisory |
| https://vuldb.com/submit/855677 | third-party-advisory |
| https://github.com/TanStack/db/issues/1584 | exploitissue-tracking |
| https://github.com/TanStack/db/pull/1595 | issue-trackingpatch |
| https://github.com/TanStack/db/commit/ac09b1177a1… | patch |
| https://github.com/TanStack/db/ | product |
Impacted products
Credits
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CVE-2026-15598 (GCVE-0-2026-15598)
Vulnerability from cvelistv5 – Published: 2026-07-13 22:00 – Updated: 2026-07-14 13:01
VLAI
EPSS
VEX
Title
antv layout object.js setNestedValue prototype pollution
Summary
A weakness has been identified in antv layout 2.0.0. This impacts the function setNestedValue in the library lib/util/object.js. Executing a manipulation of the argument path can lead to improperly controlled modification of object prototype attributes. The attack can be launched remotely. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/378113 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/378113/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-15598 | third-party-advisory |
| https://vuldb.com/submit/855637 | third-party-advisory |
| https://github.com/antvis/layout/issues/292 | issue-tracking |
Impacted products
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CVE-2026-15538 (GCVE-0-2026-15538)
Vulnerability from cvelistv5 – Published: 2026-07-13 06:00 – Updated: 2026-07-13 15:22 Unsupported When Assigned
VLAI
EPSS
VEX
Title
primefaces primereact API ObjectUtils.mutateFieldData prototype pollution
Summary
A weakness has been identified in primefaces primereact up to 10.9.8. This issue affects the function ObjectUtils.mutateFieldData of the component API. This manipulation of the argument Field causes improperly controlled modification of object prototype attributes. The attack is possible to be carried out remotely. The project was informed of the problem early through an issue report but has not responded yet. This vulnerability only affects products that are no longer supported by the maintainer.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/377888 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/377888/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-15538 | third-party-advisory |
| https://vuldb.com/submit/855024 | third-party-advisory |
| https://github.com/primefaces/primereact/issues/8553 | issue-tracking |
| https://github.com/Mantle-UI/mantle-ui/issues/50 | issue-tracking |
| https://github.com/primefaces/primereact/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| primefaces | primereact |
Affected:
10.9.0
Affected: 10.9.1 Affected: 10.9.2 Affected: 10.9.3 Affected: 10.9.4 Affected: 10.9.5 Affected: 10.9.6 Affected: 10.9.7 Affected: 10.9.8 cpe:2.3:a:primefaces:primereact:*:*:*:*:*:*:*:* |
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CVE-2026-15195 (GCVE-0-2026-15195)
Vulnerability from cvelistv5 – Published: 2026-07-09 17:15 – Updated: 2026-07-09 18:23 X_Open Source
VLAI
EPSS
VEX
Title
apidevtools json-schema-ref-parser pointer.ts Pointer.set prototype pollution
Summary
A weakness has been identified in apidevtools json-schema-ref-parser up to 15.3.5. This impacts the function Refs.set/Pointer.set in the library lib/pointer.ts. Executing a manipulation can lead to improperly controlled modification of object prototype attributes. The attack can be launched remotely. Upgrading to version 15.3.6 will fix this issue. This patch is called a786bc6afc3674f650496472ee93d5cf74c4bd84. It is suggested to upgrade the affected component.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/377123 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/377123/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-15195 | third-party-advisory |
| https://vuldb.com/submit/851809 | third-party-advisory |
| https://github.com/APIDevTools/json-schema-ref-pa… | issue-tracking |
| https://github.com/APIDevTools/json-schema-ref-pa… | patch |
| https://github.com/APIDevTools/json-schema-ref-pa… | patch |
| https://github.com/APIDevTools/json-schema-ref-parser/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| apidevtools | json-schema-ref-parser |
Affected:
15.3.0
Affected: 15.3.1 Affected: 15.3.2 Affected: 15.3.3 Affected: 15.3.4 Affected: 15.3.5 Unaffected: 15.3.6 cpe:2.3:a:apidevtools:json-schema-ref-parser:*:*:*:*:*:*:*:* |
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CVE-2026-15187 (GCVE-0-2026-15187)
Vulnerability from cvelistv5 – Published: 2026-07-09 14:30 – Updated: 2026-07-09 16:07
VLAI
EPSS
VEX
Title
enquirer Public Package API Enquirer.set prototype pollution
Summary
A security flaw has been discovered in enquirer up to 2.4.1. Affected is the function Enquirer.set of the component Public Package API. The manipulation of the argument question.name results in improperly controlled modification of object prototype attributes. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/377113 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/377113/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-15187 | third-party-advisory |
| https://vuldb.com/submit/851357 | third-party-advisory |
| https://github.com/enquirer/enquirer/issues/487 | issue-tracking |
| https://github.com/enquirer/enquirer/issues/487#i… | exploitissue-tracking |
| https://github.com/enquirer/enquirer/ | product |
Impacted products
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CVE-2026-12209 (GCVE-0-2026-12209)
Vulnerability from cvelistv5 – Published: 2026-06-15 02:15 – Updated: 2026-06-15 12:52
VLAI
EPSS
VEX
Title
RubyLouvre avalon Template Filter index.js prototype pollution
Summary
A security vulnerability has been detected in RubyLouvre avalon up to 2.2.10. The impacted element is an unknown function of the file src/filters/index.js of the component Template Filter Handler. Such manipulation leads to improperly controlled modification of object prototype attributes. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/370851 | vdb-entry |
| https://vuldb.com/vuln/370851/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-12209 | third-party-advisory |
| https://vuldb.com/submit/832447 | third-party-advisory |
| https://github.com/OriginSecurityX/avalon-filter-rce | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| RubyLouvre | avalon |
Affected:
2.2.0
Affected: 2.2.1 Affected: 2.2.2 Affected: 2.2.3 Affected: 2.2.4 Affected: 2.2.5 Affected: 2.2.6 Affected: 2.2.7 Affected: 2.2.8 Affected: 2.2.9 Affected: 2.2.10 cpe:2.3:a:rubylouvre:avalon:*:*:*:*:*:*:*:* |
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CVE-2026-12208 (GCVE-0-2026-12208)
Vulnerability from cvelistv5 – Published: 2026-06-15 02:00 – Updated: 2026-06-15 19:25
VLAI
EPSS
VEX
Title
jsonata-js jsonata Function Binding Frame System jsonata.js createFrame prototype pollution
Summary
A weakness has been identified in jsonata-js jsonata up to 2.2.0. The affected element is the function createFrame of the file src/jsonata.js of the component Function Binding Frame System. This manipulation causes improperly controlled modification of object prototype attributes. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/370850 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/370850/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-12208 | third-party-advisory |
| https://vuldb.com/submit/832446 | third-party-advisory |
| https://github.com/OriginSecurityX/jsonata-hasown… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jsonata-js | jsonata |
Affected:
2.0
Affected: 2.1 Affected: 2.2.0 cpe:2.3:a:jsonata-js:jsonata:*:*:*:*:*:*:*:* |
Credits
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Mitigation
Implementation
By freezing the object prototype first (for example, Object.freeze(Object.prototype)), modification of the prototype becomes impossible.
Mitigation
Architecture and Design
By blocking modifications of attributes that resolve to object prototype, such as proto or prototype, this weakness can be mitigated.
Mitigation
Implementation
Strategy: Input Validation
When handling untrusted objects, validating using a schema can be used.
Mitigation
Implementation
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
Implementation
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.