CVE-2026-21874
unknown
CVSS v3
—
CVSS v4 NEW
—
VIR risk
—
Description
NiceGUI has Redis connection leak via tab storage causes service degradation
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | nicegui | >=2.10.0,<3.5.0 | 3.5.0 |
References
- https://github.com/zauberzeug/nicegui/security/advisories/GHSA-mp55-g7pj-rvm2
- https://nvd.nist.gov/vuln/detail/CVE-2026-21874
- https://github.com/zauberzeug/nicegui/commit/6c52eb2c90c4b67387c025b29646b4bc1578eb83
- https://github.com/zauberzeug/nicegui
- https://github.com/zauberzeug/nicegui/releases/tag/v3.5.0
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.