CVE-2026-48544
Received Received - Intake
BaseFortify

Publication date: 2026-05-27

Last updated on: 2026-05-27

Assigner: VulnCheck

Description
Taipy 4.1.1, fixed in commit 129fd40, contains a path traversal vulnerability in the ElementLibrary.get_resource() method in taipy/gui/extension/library.py that allows unauthenticated attackers to escape the intended module directory by exploiting an incomplete path containment check using str.startswith() without a trailing path separator. Attackers can send crafted GET requests with path traversal segments targeting a prefix-matching sibling directory on disk, bypassing the directory containment check because Flask's path converter and Werkzeug's WSGI layer preserve the traversal segments while the resolved path still satisfies the flawed startswith comparison, enabling unauthorized file access outside the intended library directory.
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Meta Information
Published
2026-05-27
Last Modified
2026-05-27
Generated
2026-05-27
AI Q&A
2026-05-27
EPSS Evaluated
N/A
NVD
EUVD
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
taipy taipy 4.1.1
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability exists in Taipy version 4.1.1 within the ElementLibrary.get_resource() method. It is a path traversal flaw that allows unauthenticated attackers to access files outside the intended module directory. The issue arises because the method uses an incomplete path containment check with str.startswith() that does not consider a trailing path separator. Attackers can craft GET requests containing path traversal segments that target sibling directories on disk. Due to how Flask's path converter and Werkzeug's WSGI layer preserve these traversal segments, the flawed startswith check is bypassed, enabling unauthorized file access beyond the library directory.


How can this vulnerability impact me? :

This vulnerability can lead to unauthorized access to files outside the intended directory, potentially exposing sensitive information or configuration files. Since the attack requires no authentication, it poses a high risk of data leakage or information disclosure. The CVSS v3.1 score of 7.5 indicates a high severity impact on confidentiality without affecting integrity or availability.


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