CVE-2026-25732

NiceGUI is a Python-based UI framework. Prior to 3.7.0, NiceGUI's FileUpload.name property exposes client-supplied filename metadata without sanitization, enabling path traversal when developers use the pattern UPLOADDIR / file.name. Malicious filenames containing ../ sequences allow attackers to...

CVE-2026-25732

CVE-2026-25732 affects NiceGUI prior to 3.7.0, where the FileUpload.name property exposes client-controlled filenames without sanitization. When developers build a filesystem path as UPLOAD_DIR / file.name, malicious filenames containing ../ sequences can cause directory traversal, allowing write...

CVE-2026-25732 NiceGUI's Path Traversal via Unsanitized FileUpload.name Enables Arbitrary File Write

NiceGUI is a Python-based UI framework. Prior to 3.7.0, NiceGUI's FileUpload.name property exposes client-supplied filename metadata without sanitization, enabling path traversal when developers use the pattern UPLOADDIR / file.name. Malicious filenames containing ../ sequences allow attackers to...

EUVD-2026-5568

NiceGUI is a Python-based UI framework. Prior to 3.7.0, NiceGUI's FileUpload.name property exposes client-supplied filename metadata without sanitization, enabling path traversal when developers use the pattern UPLOADDIR / file.name. Malicious filenames containing ../ sequences allow attackers to...

CVE-2026-25732 NiceGUI's Path Traversal via Unsanitized FileUpload.name Enables Arbitrary File Write

NiceGUI is a Python-based UI framework. Prior to 3.7.0, NiceGUI's FileUpload.name property exposes client-supplied filename metadata without sanitization, enabling path traversal when developers use the pattern UPLOADDIR / file.name. Malicious filenames containing ../ sequences allow attackers to...

NiceGUI 跨站脚本漏洞

NiceGUI is an easy-to-use, Python-based UI framework developed under the open source license. Versions of NiceGUI prior to 3.7.0 contained a cross-site scripting vulnerability. This vulnerability stemmed from the ui.markdown component, which allowed raw HTML to be passed through by default,...

Open Redirect

Overview nicegui is a Create web-based user interfaces with Python. The nice way. Affected versions of this package are vulnerable to Open Redirect via the save function. An attacker can overwrite arbitrary files on the server by uploading files with crafted filenames containing directory travers...

acherion (>=0.2.0 <=0.9.2), aesp (=2025.9.12) +257 more potentially affected by CVE-2026-25732 via nicegui (>=0.9.11 <=3.6.1)

nicegui PYPI version =0.9.11, =0.2.0, =1.0.0, =0.0.1, =0.1.0, =0.2.0, =0.3.0, =0.0.0, =0.0.0, =0.4.14, =1.0.0, =1.1.3 - autestoy =0.1.0 - auth-web-kit =1.2.2 and more Source cves: CVE-2026-25732 Source advisory: OSV:GHSA-9FFM-FXG3-XRHH...

GHSA-9FFM-FXG3-XRHH NiceGUI's Path Traversal via Unsanitized FileUpload.name Enables Arbitrary File Write

Summary NiceGUI's FileUpload.name property exposes client-supplied filename metadata without sanitization, enabling path traversal when developers use the pattern UPLOADDIR / file.name. Malicious filenames containing ../ sequences allow attackers to write files outside intended directories, with...

NiceGUI's Path Traversal via Unsanitized FileUpload.name Enables Arbitrary File Write

Summary NiceGUI's FileUpload.name property exposes client-supplied filename metadata without sanitization, enabling path traversal when developers use the pattern UPLOADDIR / file.name. Malicious filenames containing ../ sequences allow attackers to write files outside intended directories, with...

acherion (>=0.2.0 <=0.9.2), aesp (=2025.9.12) +206 more potentially affected by CVE-2026-25732 via nicegui (>=3.0.4 <=3.6.1)

nicegui PYPI version =3.0.4, =0.2.0, =1.0.0, =0.4.0, =0.1.0, =0.2.0, =0.3.0, =0.0.0, =0.4.14, =1.0.0, =1.1.3 - autestoy =0.1.0 - auth-web-kit =1.2.2 - bellatrex =0.4.0 and more Source cves: CVE-2026-25732 Source advisory: SNYK:PYTHON-NICEGUI-15248175...

acherion (>=0.2.0 <=0.9.2), aesp (=2025.9.12) +257 more potentially affected by CVE-2026-25516 via nicegui (>=0.9.11 <=3.6.1)

nicegui PYPI version =0.9.11, =0.2.0, =1.0.0, =0.0.1, =0.1.0, =0.2.0, =0.3.0, =0.0.0, =0.0.0, =0.4.14, =1.0.0, =1.1.3 - autestoy =0.1.0 - auth-web-kit =1.2.2 and more Source cves: CVE-2026-25516 Source advisory: OSV:GHSA-V82V-C5X8-W282...

acherion (>=0.2.0 <=0.9.2), aesp (=2025.9.12) +206 more potentially affected by CVE-2026-25516 via nicegui (>=3.0.4 <=3.6.1)

nicegui PYPI version =3.0.4, =0.2.0, =1.0.0, =0.4.0, =0.1.0, =0.2.0, =0.3.0, =0.0.0, =0.4.14, =1.0.0, =1.1.3 - autestoy =0.1.0 - auth-web-kit =1.2.2 - bellatrex =0.4.0 and more Source cves: CVE-2026-25516 Source advisory: SNYK:PYTHON-NICEGUI-15248174...

Cross-site Scripting (XSS)

Overview nicegui is a Create web-based user interfaces with Python. The nice way. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the ui.markdown function. An attacker can execute arbitrary JavaScript in the context of the user's browser by injecting malicious HTM...

GHSA-V82V-C5X8-W282 NiceGUI's XSS vulnerability in ui.markdown() allows arbitrary JavaScript execution through unsanitized HTML content

Description The ui.markdown component uses the markdown2 library to convert markdown content to HTML, which is then rendered via innerHTML. By default, markdown2 allows raw HTML to pass through unchanged. This means that if an application renders user-controlled content through ui.markdown, an...

CVE-2026-25516

creationtimestamp| type| source ---|---|--- 2026-02-05 11:12:26+00:00| published-proof-of-concept| https://github.com/zauberzeug/nicegui/security/advisories/GHSA-v82v-c5x8-w282...

PT-2026-6647

Name of the Vulnerable Software and Affected Versions NiceGUI versions prior to 3.7.0 Description The ui.markdown component in NiceGUI does not sanitize user-controlled markdown content before rendering it as HTML via innerHTML. This allows attackers to inject malicious HTML, including JavaScript...

PT-2026-6660

Name of the Vulnerable Software and Affected Versions NiceGUI versions prior to 3.7.0 Description NiceGUI’s FileUpload.name property does not sanitize client-supplied filename metadata, which can lead to path traversal when developers use the pattern UPLOAD DIR / file.name. Attackers can exploit...

CVE-2026-21871

NiceGUI is a Python-based UI framework. From versions 2.13.0 to 3.4.1, there is a XSS risk in NiceGUI when developers pass attacker-controlled strings into ui.navigate.history.push or ui.navigate.history.replace. These helpers are documented as History API wrappers for updating the browser URL...

CVE-2026-21874

NiceGUI is a Python-based UI framework. From versions v2.10.0 to 3.4.1, an unauthenticated attacker can exhaust Redis connections by repeatedly opening and closing browser tabs on any NiceGUI application using Redis-backed storage. Connections are never released, leading to service degradation wh...