CVE-2026-45554

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Source
https://cve.org/CVERecord?id=CVE-2026-45554
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45554.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-45554
Aliases
Published
2026-06-02T15:35:07.125Z
Modified
2026-08-04T11:49:12.871927439Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
NiceGUI: Unauthenticated log-flood DoS via trailing slash on ESM and per-component resource routes
Details

NiceGUI is a Python-based UI framework. Prior to version 3.12.0, two FastAPI routes that serve per-component static assets in NiceGUI accept a sub-path parameter that may resolve to a directory rather than a file. Requests that resolve to a directory raise an unhandled RuntimeError inside Starlette's FileResponse, which Uvicorn writes to the server log as a full traceback. Because the routes are reachable without authentication, a remote attacker can amplify log volume and consume disk and log-pipeline capacity on any publicly reachable NiceGUI server. This issue has been patched in version 3.12.0.

Database specific 
{
    "cwe_ids": [
        "CWE-248",
        "CWE-770"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45554.json"
}
References

Affected packages

Git / github.com/zauberzeug/nicegui

Affected ranges

Type
GIT
Repo
https://github.com/zauberzeug/nicegui
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
0a98a671bf7bb21ad96a7fb2c8a639f1142efc0a
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.12.0"
        }
    ]
}

Affected versions

v0.*
v0.1.2
v0.2.0
v0.2.1
v0.2.10
v0.2.12
v0.2.13
v0.2.14
v0.2.15
v0.2.2
v0.2.3
v0.2.4
v0.2.5
v0.2.6
v0.2.7
v0.2.8
v0.2.9
v0.3.2
v0.3.3
v0.3.4
v0.3.5
v0.3.6
v0.3.7
v0.3.8
v0.3.9
v0.4.0
v0.4.1
v0.4.10
v0.4.11
v0.4.12
v0.4.13
v0.4.14
v0.4.15
v0.4.2
v0.4.3
v0.4.4
v0.4.5
v0.4.6
v0.4.7
v0.4.8
v0.4.9
v0.5.0
v0.5.1
v0.5.2
v0.5.4
v0.5.5
v0.5.6
v0.5.7
v0.5.8
v0.5.9
v0.6.0
v0.6.1
v0.6.10
v0.6.11
v0.6.12
v0.6.13
v0.6.2
v0.6.3
v0.6.4
v0.6.5
v0.6.6
v0.6.7
v0.6.8
v0.6.9
v0.7.0
v0.7.1
v0.7.10
v0.7.11
v0.7.12
v0.7.13
v0.7.14
v0.7.15
v0.7.16
v0.7.17
v0.7.18
v0.7.19
v0.7.2
v0.7.20
v0.7.21
v0.7.22
v0.7.23
v0.7.24
v0.7.25
v0.7.26
v0.7.27
v0.7.28
v0.7.3
v0.7.4
v0.7.5
v0.7.6
v0.7.7
v0.7.8
v0.7.9
v0.8.0
v0.8.1
v0.8.10
v0.8.11
v0.8.12
v0.8.13
v0.8.14
v0.8.15
v0.8.16
v0.8.2
v0.8.3
v0.8.4
v0.8.8
v0.8.9
v0.9.0
v0.9.1
v0.9.10
v0.9.11
v0.9.12
v0.9.13
v0.9.14
v0.9.15
v0.9.16
v0.9.17
v0.9.18
v0.9.19
v0.9.2
v0.9.20
v0.9.21
v0.9.22
v0.9.24
v0.9.25
v0.9.26
v0.9.3
v0.9.4
v0.9.5
v0.9.6
v0.9.7
v0.9.8
v0.9.9
v1.*
v1.0.0
v1.0.1
v1.0.10
v1.0.2
v1.0.3
v1.0.4
v1.0.5
v1.0.6
v1.0.7
v1.0.8
v1.0.9
v1.1.0
v1.1.1
v1.1.10
v1.1.11
v1.1.2
v1.1.3
v1.1.4
v1.1.5
v1.1.6
v1.1.7
v1.1.8
v1.1.9
v1.2.2
v1.2.3
v1.2.4
v1.2.5
v1.2.6
v1.3.0
v1.3.1
v1.3.10
v1.3.11
v1.3.12
v1.3.13
v1.3.14
v1.3.15
v1.3.16
v1.3.2
v1.3.4
v1.3.5
v1.3.6
v1.3.7
v1.3.8
v1.3.9
v1.4.0
v1.4.1
v1.4.10
v1.4.11
v1.4.12
v1.4.13
v1.4.14
v1.4.15
v1.4.16
v1.4.17
v1.4.18
v1.4.19
v1.4.2
v1.4.20
v1.4.21
v1.4.22
v1.4.23
v1.4.24
v1.4.25
v1.4.26
v1.4.27
v1.4.28
v1.4.29
v1.4.3
v1.4.30
v1.4.31
v1.4.32
v1.4.33
v1.4.34
v1.4.35
v1.4.36
v1.4.37
v1.4.4
v1.4.5
v1.4.6
v1.4.7
v1.4.8
v1.4.9
v2.*
v2.0.0
v2.0.1
v2.1.0
v2.10.0
v2.10.1
v2.11.0
v2.11.1
v2.12.0
v2.12.1
v2.13.0
v2.14.0
v2.14.1
v2.15.0
v2.16.0
v2.16.1
v2.17.0
v2.18.0
v2.19.0
v2.2.0
v2.20.0
v2.21.0
v2.22.0
v2.22.1
v2.23.0
v2.23.1
v2.23.2
v2.23.3
v2.24.0
v2.24.1
v2.24.2
v2.3.0
v2.4.0
v2.5.0
v2.7.0
v2.8.0
v2.8.1
v2.9.0
v2.9.1
v3.*
v3.0.0
v3.0.1
v3.0.2
v3.0.3
v3.0.4
v3.1.0
v3.10.0
v3.11.0
v3.11.1
v3.2.0
v3.3.0
v3.3.1
v3.4.0
v3.4.1
v3.5.0
v3.6.0
v3.6.1
v3.7.0
v3.7.1
v3.8.0
v3.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45554.json"