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.
Metrics
Affected Vendors & Products
References
| Link | Providers |
|---|---|
| https://www.hacktron.ai/blog/hacking-openai-atlas-browser |
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History
Sun, 07 Jun 2026 01:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Fri, 05 Jun 2026 21:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Cross‑Site Scripting Allowing Browser History Access and Tab Control in OpenAI Atlas |
Fri, 05 Jun 2026 18:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
cvssV4_0
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Fri, 05 Jun 2026 10:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Openai
Openai openai Atlas |
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| Vendors & Products |
Openai
Openai openai Atlas |
Fri, 05 Jun 2026 05:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Cross‑Site Scripting Allowing Browser History Access and Tab Control in OpenAI Atlas |
Fri, 05 Jun 2026 01:30:00 +0000
| Type | Values Removed | Values 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. | |
| Weaknesses | CWE-284 | |
| References |
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Status: PUBLISHED
Assigner: OAI
Published: 2026-06-05T00:12:32.077Z
Updated: 2026-06-05T18:32:50.603Z
Reserved: 2026-06-05T00:07:13.696Z
Link: CVE-2026-11326
Updated: 2026-06-05T18:32:46.951Z
Status : Deferred
Published: 2026-06-05T02:17:11.180
Modified: 2026-06-05T18:17:04.343
Link: CVE-2026-11326
No data.
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