CVE-2026-11326 — OpenAI / OpenAI Atlas

CVE-2026-11326

OpenAI / OpenAI Atlas PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
OpenAI / OpenAI Atlas	affected 0 before 1.2025.288.15

CWE

CWE-284

References

https://www.hacktron.ai/blog/hacking-openai-atlas-browser

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.