PYSEC-2026-1703 NiceGUI has Redis connection leak via tab storage causes service degradation

Summary An unauthenticated attacker can exhaust Redis connections by repeatedly opening and closing browser tabs on any NiceGUI application using Redis-backed storage. Connections are never released, leading to service degradation when Redis hits its connection limit. NiceGUI continues accepting...

GHSA-MP55-G7PJ-RVM2 NiceGUI has Redis connection leak via tab storage causes service degradation

Summary An unauthenticated attacker can exhaust Redis connections by repeatedly opening and closing browser tabs on any NiceGUI application using Redis-backed storage. Connections are never released, leading to service degradation when Redis hits its connection limit. NiceGUI continues accepting...

Missing Release of Resource after Effective Lifetime

Overview nicegui is a Create web-based user interfaces with Python. The nice way. Affected versions of this package are vulnerable to Missing Release of Resource after Effective Lifetime in the handledisconnect function, when using the Redis backend for tab storage. An attacker can cause service...

NiceGUI has Redis connection leak via tab storage causes service degradation

Summary An unauthenticated attacker can exhaust Redis connections by repeatedly opening and closing browser tabs on any NiceGUI application using Redis-backed storage. Connections are never released, leading to service degradation when Redis hits its connection limit. NiceGUI continues accepting...

CVE-2026-21874

CVE-2026-21874 affects NiceGUI versions 2.10.0 through 3.4.1 where an unauthenticated attacker can exhaust Redis connections by repeatedly opening/closing browser tabs using Redis-backed storage. This tab-storage leak prevents Redis connections from being released, causing Redis to reach its max ...

CVE-2026-21874 NiceGUI has Redis connection leak via tab storage causes service degradation

NiceGUI is a Python-based UI framework. From versions v2.10.0 to 3.4.1, an unauthenticated attacker can exhaust Redis connections by repeatedly opening and closing browser tabs on any NiceGUI application using Redis-backed storage. Connections are never released, leading to service degradation wh...

EUVD-2026-1474

NiceGUI is a Python-based UI framework. From versions v2.10.0 to 3.4.1, an unauthenticated attacker can exhaust Redis connections by repeatedly opening and closing browser tabs on any NiceGUI application using Redis-backed storage. Connections are never released, leading to service degradation wh...