VULNERABILITY INTELLIGENCE
CVE-2026-11326
EPSS probability0.21%
CISA KEVNot currently listed
Published2026-06-05
Last modified2026-07-23
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.
Weakness classification
- 8f4f43ab-ba69-4d92-aa1d-d772184d6fb7: CWE-284