CVE-2026-55886
Jodit Editor: Prototype Pollution in Jodit via Jodit.modules.Helpers.set()
Description
Jodit Editor is a WYSIWYG editor with written in pure TypeScript file and image editing capabilities. Versions prior to 4.12.26 are vulnerable to Prototype Pollution through Jodit.modules.Helpers.set(chain, value, obj), which walks the dot-separated chain, creating and following each path segment without filtering prototype-mutating keys. A chain that begins with (or contains) __proto__, constructor, or prototype lets the final assignment reach and mutate Object.prototype. Applications that pass a user-controlled or partially user-controlled key path into Jodit.modules.Helpers.set() could be vulnerable, causing unexpected property injection, logic bypass, denial of service, or secondary security issues. This issue has been fixed in version 4.12.26.
INFO
Published Date :
July 1, 2026, 9:17 p.m.
Last Modified :
Oct. 25, 2026, 4:10 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 4.0 | MEDIUM | [email protected] |
Solution
- Update Jodit Editor to version 4.12.26 or later.
- Avoid passing user-controlled keys to Jodit.modules.Helpers.set().
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-2026-55886.
| URL | Resource |
|---|---|
| https://github.com/xdan/jodit/security/advisories/GHSA-vpmm-x3fm-qr5c | |
| https://github.com/xdan/jodit/security/advisories/GHSA-vpmm-x3fm-qr5c |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-55886 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-2026-55886
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-55886 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-55886 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. 25, 2026
Action Type Old Value New Value Added Translation Title: jodit de xdan, Description: Jodit Editor es un editor WYSIWYG escrito en TypeScript puro con capacidades de edición de archivos e imágenes. Las versiones anteriores a la 4.12.26 son vulnerables a la Contaminación de Prototipos a través de Jodit.modules.Helpers.set(chain, value, obj), que recorre la cadena separada por puntos, creando y siguiendo cada segmento de ruta sin filtrar claves que mutan el prototipo. Una cadena que comienza con (o contiene) __proto__, constructor o prototype permite que la asignación final alcance y mute Object.prototype. Las aplicaciones que pasan una ruta de clave controlada por el usuario o parcialmente controlada por el usuario a Jodit.modules.Helpers.set() podrían ser vulnerables, causando inyección de propiedades inesperada, omisión de lógica, denegación de servicio o problemas de seguridad secundarios. Este problema ha sido corregido en la versión 4.12.26. -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 02, 2026
Action Type Old Value New Value Added Reference https://github.com/xdan/jodit/security/advisories/GHSA-vpmm-x3fm-qr5c Added SSVC {'id': 'CVE-2026-55886', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-02T12:22:09.347068Z'} -
New CVE Received by [email protected]
Jul. 01, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'xdan', 'product': 'jodit', 'versions': [{'status': 'affected', 'version': '< 4.12.26'}]}] Added Description Jodit Editor is a WYSIWYG editor with written in pure TypeScript file and image editing capabilities. Versions prior to 4.12.26 are vulnerable to Prototype Pollution through Jodit.modules.Helpers.set(chain, value, obj), which walks the dot-separated chain, creating and following each path segment without filtering prototype-mutating keys. A chain that begins with (or contains) __proto__, constructor, or prototype lets the final assignment reach and mutate Object.prototype. Applications that pass a user-controlled or partially user-controlled key path into Jodit.modules.Helpers.set() could be vulnerable, causing unexpected property injection, logic bypass, denial of service, or secondary security issues. This issue has been fixed in version 4.12.26. Added CVSS V4.0 AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-1321 Added Reference https://github.com/xdan/jodit/security/advisories/GHSA-vpmm-x3fm-qr5c