CVE-2026-11326
OpenAI Atlas Cross-Site Scripting
Description
OpenAI Atlas before 1.2025.288.15 exposed privileged browser APIs to web content on *.openai.com origins. A cross-site scripting vulnerability in forum.openai.com could be used to access these functions, allowing access to browser history information and the ability to open or close tabs. OpenAI Atlas 1.2025.288.15 narrows access to these APIs to *.chatgpt.com; users should upgrade to 1.2025.288.15 or later.
INFO
Published Date :
June 5, 2026, 2:17 a.m.
Last Modified :
June 5, 2026, 2:17 a.m.
Remotely Exploit :
No
Source :
8f4f43ab-ba69-4d92-aa1d-d772184d6fb7
Affected Products
The following products are affected by CVE-2026-11326
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
Solution
- Upgrade OpenAI Atlas to version 1.2025.288.15 or later.
- Restrict access to privileged browser APIs.
- Ensure API access is limited to *.chatgpt.com.
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-2026-11326.
| URL | Resource |
|---|---|
| https://www.hacktron.ai/blog/hacking-openai-atlas-browser |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-11326 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-2026-11326
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-2026-11326 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-11326 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.
-
New CVE Received by 8f4f43ab-ba69-4d92-aa1d-d772184d6fb7
Jun. 05, 2026
Action Type Old Value New Value Added Description OpenAI Atlas before 1.2025.288.15 exposed privileged browser APIs to web content on *.openai.com origins. A cross-site scripting vulnerability in forum.openai.com could be used to access these functions, allowing access to browser history information and the ability to open or close tabs. OpenAI Atlas 1.2025.288.15 narrows access to these APIs to *.chatgpt.com; users should upgrade to 1.2025.288.15 or later. Added CWE CWE-284 Added Reference https://www.hacktron.ai/blog/hacking-openai-atlas-browser