CVE-2026-66920
Pivotick - Stack Exhaustion Denial of Service via Deep or Cyclic Graph Data
Description
Pivotick contains an uncontrolled-recursion vulnerability when processing caller-supplied graph and node data. The affected graph algorithms recursively traversed graph edges, while the JSON viewer recursively processed each level of a node’s data structure. A specially crafted graph containing an excessively long path, deeply nested properties, or circular object references could therefore exhaust the JavaScript call stack when Pivotick calculates a layout or displays a node in the inspection modal. Successful exploitation may cause an uncaught exception, freeze the affected page, or crash the browser tab, resulting in a client-side denial of service. No confidentiality or integrity impact has been identified. The patch replaces the recursive graph traversals with iterative stack-based implementations and limits the reachability calculation to 1,000,000 edge traversals. It also limits JSON rendering to 64 levels and detects circular references before descending further into an object.
INFO
Published Date :
July 28, 2026, 1:19 p.m.
Last Modified :
Oct. 24, 2026, 1:10 p.m.
Remotely Exploit :
Yes !
Source :
5a6e4751-2f3f-4070-9419-94fb35b644e8
Affected Products
The following products are affected by CVE-2026-66920
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 4.0 | HIGH | 5a6e4751-2f3f-4070-9419-94fb35b644e8 | ||||
| CVSS 4.0 | HIGH | 5a6e4751-2f3f-4070-9419-94fb35b644e8 |
Solution
- Apply the vendor patch to address recursion issues.
- Update graph algorithms to use iterative implementations.
- Limit JSON rendering depth and detect circular references.
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-2026-66920.
| URL | Resource |
|---|---|
| https://github.com/Pivotick/Pivotick/commit/66373141eb7892fc29a3b42cfb2c160af16765fe |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-66920 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-2026-66920
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-2026-66920 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-66920 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. 24, 2026
Action Type Old Value New Value Added Translation Title: Pivotick - Stack Exhaustion Denial of Service via Deep or Cyclic Graph Data, Description: Pivotick contiene una vulnerabilidad de recursión incontrolada al procesar datos de gráficos y nodos proporcionados por el llamador. Los algoritmos de gráficos afectados recorrieron recursivamente los bordes del gráfico, mientras que el visor JSON procesó recursivamente cada nivel de la estructura de datos de un nodo. Un gráfico especialmente diseñado que contiene una ruta excesivamente larga, propiedades profundamente anidadas o referencias circulares de objetos podría, por lo tanto, agotar la pila de llamadas de JavaScript cuando Pivotick calcula un diseño o muestra un nodo en el modal de inspección. La explotación exitosa puede causar una excepción no detectada, congelar la página afectada o bloquear la pestaña del navegador, lo que resulta en una denegación de servicio del lado del cliente. No se ha identificado ningún impacto en la confidencialidad o integridad. El parche reemplaza los recorridos recursivos del gráfico con implementaciones iterativas basadas en pila y limita el cálculo de alcanzabilidad a 1,000,000 de recorridos de bordes. También limita la representación JSON a 64 niveles y detecta referencias circulares antes de descender más en un objeto. -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 28, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-66920', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-28T19:26:00.072464Z'} -
New CVE Received by 5a6e4751-2f3f-4070-9419-94fb35b644e8
Jul. 28, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://github.com/Pivotick/Pivotick/', 'vendor': 'Pivotick', 'product': 'Pivotick', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '1.4.0'}], 'defaultStatus': 'unaffected'}] Added Description Pivotick contains an uncontrolled-recursion vulnerability when processing caller-supplied graph and node data. The affected graph algorithms recursively traversed graph edges, while the JSON viewer recursively processed each level of a node’s data structure. A specially crafted graph containing an excessively long path, deeply nested properties, or circular object references could therefore exhaust the JavaScript call stack when Pivotick calculates a layout or displays a node in the inspection modal. Successful exploitation may cause an uncaught exception, freeze the affected page, or crash the browser tab, resulting in a client-side denial of service. No confidentiality or integrity impact has been identified. The patch replaces the recursive graph traversals with iterative stack-based implementations and limits the reachability calculation to 1,000,000 edge traversals. It also limits JSON rendering to 64 levels and detects circular references before descending further into an object. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/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-400 Added CWE CWE-674 Added Reference https://github.com/Pivotick/Pivotick/commit/66373141eb7892fc29a3b42cfb2c160af16765fe