{"id":"CVE-2026-11326","state":"PUBLISHED","title":"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 ","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.","publishedAt":"2026-06-05T00:12:32.077Z","updatedAt":"2026-06-05T18:32:50.603Z","severity":{"score":6,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/AU:N/V:D/RE:L/U:Green","source":"OAI"},"assigner":"OAI","products":["OpenAI OpenAI Atlas"],"affected":[{"vendor":"OpenAI","product":"OpenAI Atlas","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.2025.288.15","versionType":"custom"}]}],"references":["https://www.hacktron.ai/blog/hacking-openai-atlas-browser"],"weaknesses":["CWE-284"],"ingestedAt":"2026-10-29T20:10:52.580Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/11xxx/CVE-2026-11326.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-11326","state":"PUBLISHED","datePublished":"2026-06-05T00:12:32.077Z","dateUpdated":"2026-06-05T18:32:50.603Z","assignerShortName":"OAI","assignerOrgId":"8f4f43ab-ba69-4d92-aa1d-d772184d6fb7","dateReserved":"2026-06-05T00:07:13.696Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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":[{"vendor":"OpenAI","product":"OpenAI Atlas","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.2025.288.15","versionType":"custom"}]}],"references":[{"url":"https://www.hacktron.ai/blog/hacking-openai-atlas-browser","name":"Pwning OpenAI Atlas Through Exposed Browser Internals","tags":["technical-description"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/AU:N/V:D/RE:L/U:Green","baseScore":6,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-284","lang":"en","description":"CWE-284 Improper Access Control","type":"CWE"}]}],"providerMetadata":{"shortName":"OAI","orgId":"8f4f43ab-ba69-4d92-aa1d-d772184d6fb7","dateUpdated":"2026-06-05T17:59:00.942Z"},"solutions":[{"lang":"en","value":"Upgrade to OpenAI Atlas 1.2025.288.15 or later."}],"credits":[{"lang":"en","value":"s1r1us and sudi of hacktron.ai","type":"finder"}],"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-05T18:32:37.907593Z","id":"CVE-2026-11326","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-05T18:32:50.603Z"}}]}}}