CVE-2026-33332
CVE-2026-33332 · NiceGUI's unvalidated chunk size parameter in media routes can cause memory exhaustion
This page contains facts from public vulnerability sources. Check the original advisory before updating.
NiceGUI is a Python-based UI framework. Prior to version 3.9.0, NiceGUI's app.add_media_file() and app.add_media_files() media routes accept a user-controlled query parameter that influences how files are read during streaming. The parameter is passed to the range-response implementation without validation, allowing an attacker to bypass chunked streaming and force the server to load entire files into memory at once. With large media files and concurrent requests, this can lead to excessive memory consumption, degraded performance, or denial of service. This issue has been patched in version 3.9.0.
CVSS 6.9 · Medium · EPSS 0.6% · Fix available
- Published
- Updated
Stack: python
Affected products and versions
nicegui
- Versions
- < 3.9.0: Affected
No fix published
nicegui PyPI
- Versions
- 0.1.0
- 0.1.4
- 0.1.6
- 0.2.0
- 0.2.1
- 0.2.10
- 0.2.11
- 0.2.12
- 0.2.13
- 0.2.14
- 0.2.15
- 0.2.2
- 0.2.3
- 0.2.4
- 0.2.9
- 0.3.0
- 0.3.1
- 0.3.2
- 0.3.3
- 0.3.4
- 0.3.5
- 0.3.6
- 0.3.7
- 0.3.8
- 0.3.9
- 0.4.0
- 0.4.1
- 0.4.10
- 0.4.11
- 0.4.12
- 0.4.13
- 0.4.14
- 0.4.15
- 0.4.2
- 0.4.3
- 0.4.4
- 0.4.5
- 0.4.6
- 0.4.7
- 0.4.8
- 0.4.9
- 0.5.0
- 0.5.1
- 0.5.10
- 0.5.11
- 0.5.12
- 0.5.2
- 0.5.3
- 0.5.4
- 0.5.5
- 0.5.6
- 0.5.7
- 0.5.8
- 0.5.9
- 0.6.0
- 0.6.1
- 0.6.10
- 0.6.11
- 0.6.12
- 0.6.13
- 0.6.2
- 0.6.3
- 0.6.4
- 0.6.5
- 0.6.6
- 0.6.7
- 0.6.8
- 0.6.9
- 0.7.0
- 0.7.1
- 0.7.10
- 0.7.11
- 0.7.12
- 0.7.13
- 0.7.14
- 0.7.15
- 0.7.16
- 0.7.17
- 0.7.18
- 0.7.19
- 0.7.2
- 0.7.21
- 0.7.22
- 0.7.23
- 0.7.24
- 0.7.25
- 0.7.26
- 0.7.27
- 0.7.28
- 0.7.29
- 0.7.3
- 0.7.30
- 0.7.4
- 0.7.6
- 0.7.7
- 0.7.8
- 0.7.9
- 0.8.0
- 0.8.1
- 0.8.10
- 0.8.11
- 0.8.12
- 0.8.13
- 0.8.14
- 0.8.15
- 0.8.16
- 0.8.2
- 0.8.3
- 0.8.4
- 0.8.5
- 0.8.6
- 0.8.7
- 0.8.8
- 0.8.9
- 0.9.0
- 0.9.1
- 0.9.10
- 0.9.11
- 0.9.12
- 0.9.13
- 0.9.14
- 0.9.15
- 0.9.16
- 0.9.17
- 0.9.18
- 0.9.19
- 0.9.2
- 0.9.20
- 0.9.21
- 0.9.22
- 0.9.23
- 0.9.24
- 0.9.25
- 0.9.26
- 0.9.27
- 0.9.28
- 0.9.3
- 0.9.4
- 0.9.5
- 0.9.6
- 0.9.7
- 0.9.8
- 0.9.9
- 1.0.1
- 1.0.10
- 1.0.2
- 1.0.3
- 1.0.4
- 1.0.5
- 1.0.6
- 1.0.7
- 1.0.8
- 1.0.9
- 1.1.0
- 1.1.1
- 1.1.10
- 1.1.11
- 1.1.2
- 1.1.3
- 1.1.4
- 1.1.5
- 1.1.6
- 1.1.7
- 1.1.8
- 1.1.9
- 1.2.0
- 1.2.1
- 1.2.10
- 1.2.11
- 1.2.12
- 1.2.13
- 1.2.14
- 1.2.15
- 1.2.16
- 1.2.17
- 1.2.18
- 1.2.2
- 1.2.20
- 1.2.21
- 1.2.22
- 1.2.23
- 1.2.24
- 1.2.3
- 1.2.4
- 1.2.5
- 1.2.6
- 1.2.7
- 1.2.8
- 1.2.9
- 1.3.0
- 1.3.1
- 1.3.10
- 1.3.11
- 1.3.12
- 1.3.13
- 1.3.14
- 1.3.15
- 1.3.16
- 1.3.17
- 1.3.18
- 1.3.2
- 1.3.3
- 1.3.4
- 1.3.5
- 1.3.6
- 1.3.7
- 1.3.8
- 1.3.9
- 1.4.0
- 1.4.1
- 1.4.10
- 1.4.11
- 1.4.12
- 1.4.13
- 1.4.14
- 1.4.15
- 1.4.16
- 1.4.17
- 1.4.18
- 1.4.19
- 1.4.2
- 1.4.20
- 1.4.21
- 1.4.22
- 1.4.23
- 1.4.24
- 1.4.25
- 1.4.26
- 1.4.27
- 1.4.28
- 1.4.29
- 1.4.3
- 1.4.30
- 1.4.31
- 1.4.33
- 1.4.34
- 1.4.35
- 1.4.36
- 1.4.37
- 1.4.4
- 1.4.5
- 1.4.6
- 1.4.7
- 1.4.8
- 1.4.9
- 2.0.0
- 2.0.1
- 2.1.0
- 2.10.0
- 2.10.1
- 2.11.0
- 2.11.1
- 2.12.0
- 2.12.1
- 2.13.0
- 2.14.0
- 2.14.1
- 2.15.0
- 2.16.0
- 2.16.1
- 2.17.0
- 2.18.0
- 2.19.0
- 2.2.0
- 2.20.0
- 2.21.0
- 2.21.1
- 2.22.0
- 2.22.1
- 2.22.2
- 2.23.0
- 2.23.1
- 2.23.2
- 2.23.3
- 2.24.0
- 2.24.1
- 2.24.2
- 2.3.0
- 2.4.0
- 2.5.0
- 2.7.0
- 2.8.0
- 2.8.1
- 2.9.0
- 2.9.1
- 3.0.0
- 3.0.0rc1
- 3.0.1
- 3.0.2
- 3.0.3
- 3.0.4
- 3.1.0
- 3.2.0
- 3.3.0
- 3.3.1
- 3.4.0
- 3.4.1
- 3.5.0
- 3.6.0
- 3.6.1
- 3.7.0
- 3.7.1
- 3.8.0
- Affected ranges
- ECOSYSTEM: < 3.9.0
Update to 3.9.0