CVE-2026-39844

Published: Apr 08, 2026 Last Modified: Apr 15, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,9
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: high
Availability: none

Description

AI Translation Available

NiceGUI is a Python-based UI framework. Prior to 3.10.0, Since PurePosixPath only recognizes forward slashes (/) as path separators, an attacker can bypass this sanitization on Windows by using backslashes (\) in the upload filename. Applications that construct file paths using file.name (a pattern demonstrated in NiceGUI's bundled examples) are vulnerable to arbitrary file write on Windows. This vulnerability is fixed in 3.10.0.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0005
Percentile
0,2th
Updated

EPSS Score Trend (Last 8 Days)

22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Stable
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Confidentiality Availability
Potential Impacts:
Execute Unauthorized Code Or Commands Modify Files Or Directories Read Files Or Directories Dos: Crash, Exit, Or Restart
Applicable Platforms
Technologies: AI/ML
Likelihood of Exploit: High
View CWE Details
Application

Nicegui by Zauberzeug

Product Information
Vendor Zauberzeug
Product Nicegui
Version Range Affected
To 3.10.0 (exclusive)
cpe:2.3:a:zauberzeug:nicegui:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/zauberzeug/nicegui/commit/d38a702e3af2da…
https://github.com/zauberzeug/nicegui/commit/d38a702e3af2da5b0708f689be8d71413f…
https://github.com/zauberzeug/nicegui/releases/tag/v3.10.0
https://github.com/zauberzeug/nicegui/releases/tag/v3.10.0
https://github.com/zauberzeug/nicegui/security/advisories/G…
https://github.com/zauberzeug/nicegui/security/advisories/GHSA-w8wv-vfpc-hw2w