CVE-2026-46509
deepobj: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Description
deepobj provides get, set, delete deep objects in javascript. Prior to 1.0.3, prototype pollution is possible when property paths contain __proto__/constructor/prototype. The property path must not be exposed as user input. This vulnerability is fixed in 1.0.3.
INFO
Published Date :
May 28, 2026, 7:16 p.m.
Last Modified :
Oct. 26, 2026, 1:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update deepobj to version 1.0.3.
- Avoid exposing user input as property paths.
- Sanitize all user-provided input.
Public PoC/Exploit Available at Github
CVE-2026-46509 has a 2 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-46509.
| URL | Resource |
|---|---|
| https://github.com/ranfdev/deepobj/security/advisories/GHSA-x7q7-fchv-8h2j |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-46509 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-46509
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Vulnerability disclosures and root-cause analysis. 10 published CVEs across npm and WordPress: prototype pollution, broken access control, unauthenticated upload to RCE, and SSRF.
appsec cve prototype-pollution responsible-disclosure security vulnerability-research
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-46509 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-46509 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 26, 2026
Action Type Old Value New Value Added Translation Title: deepobj de ranfdev, Description: deepobj proporciona obtener, establecer, eliminar objetos anidados en javascript. Antes de 1.0.3, la contaminación de prototipos es posible cuando las rutas de propiedades contienen __proto__/constructor/prototype. La ruta de la propiedad no debe exponerse como entrada de usuario. Esta vulnerabilidad está corregida en 1.0.3. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'ranfdev', 'product': 'deepobj', 'versions': [{'status': 'affected', 'version': '< 1.0.3'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-46509', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-02T14:15:49.669742Z'} -
New CVE Received by [email protected]
May. 28, 2026
Action Type Old Value New Value Added Description deepobj provides get, set, delete deep objects in javascript. Prior to 1.0.3, prototype pollution is possible when property paths contain __proto__/constructor/prototype. The property path must not be exposed as user input. This vulnerability is fixed in 1.0.3. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L Added CWE CWE-1321 Added Reference https://github.com/ranfdev/deepobj/security/advisories/GHSA-x7q7-fchv-8h2j