{"id":"CVE-2025-21618","aliases":["GHSA-v6jv-p6r8-j78w","PYSEC-2026-1705"],"url":"https://o3.security/vulnerability/CVE-2025-21618","summary":"NiceGUI On Air authentication issue","details":"NiceGUI is an easy-to-use, Python-based UI framework. Prior to 2.9.1, authenticating with NiceGUI logged in the user for all browsers, including browsers in incognito mode. This vulnerability is fixed in 2.9.1.","published":"2025-01-06T16:30:11.349Z","modified":"2026-08-08T03:48:10.645619195Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"nicegui","fixedVersion":"2.9.1"}],"fix":{"url":"https://github.com/zauberzeug/nicegui/commit/1621a4ba6a06676b8094362d36623551e651adc1","label":"zauberzeug/nicegui@1621a4b"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21618.json"},{"type":"ADVISORY","url":"https://github.com/zauberzeug/nicegui/security/advisories/GHSA-v6jv-p6r8-j78w"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-21618"},{"type":"FIX","url":"https://github.com/zauberzeug/nicegui/commit/1621a4ba6a06676b8094362d36623551e651adc1"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-08T03:48:10.645619195Z"}}