Medium severityNVD Advisory· Published Jun 5, 2026· Updated Jun 5, 2026
CVE-2026-11326
CVE-2026-11326
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.
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Affected products
1Patches
Vulnerability mechanics
References
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