In short
- CVE-2025-21618 is a HIGH (CVSS 7.5) vulnerability affecting nicegui.
- Chance of exploitation in the next 30 days (EPSS): 0.39%, higher than 33.4% of all vulnerabilities.
- Fix: update to 2.9.1 or later.
| Package | Affected versions | Patched versions |
|---|
| nicegui PyPI | < 2.9.1
| 2.9.1
|
Description
Summary
Once a user logins to one browser, all other browsers are logged in without entering password. Even incognito mode.
Impact
high
NVD description
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.
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