NiceGUI: Unauthenticated log-volume denial of service in dynamic resource routes

Summary 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...

PT-2026-41168

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.9.3 Description An issue exists where the audio transcription upload endpoint uses the file extension from a user-supplied filename to save files. The '/cache/path' route serves these files via FileResponse, whic...

Denial Of Service (DoS)

Starlette is vulnerable to Denial Of Service DoS. The vulnerability is due to quadratic-time processing in the FileResponse HTTP Range header parsing and merging logic, which allows an unauthenticated attacker to send a crafted Range header to exhaust CPU resources...

SUSE CVE-2025-62727

Starlette is a lightweight ASGI framework/toolkit. Starting in version 0.39.0 and prior to version 0.49.1 , an unauthenticated attacker can send a crafted HTTP Range header that triggers quadratic-time processing in Starlette's FileResponse Range parsing/merging logic. This enables CPU exhaustion...

CVE-2025-62727

Starlette is a lightweight ASGI framework/toolkit. Starting in version 0.39.0 and prior to version 0.49.1 , an unauthenticated attacker can send a crafted HTTP Range header that triggers quadratic-time processing in Starlette's FileResponse Range parsing/merging logic. This enables CPU exhaustion...

UBUNTU-CVE-2025-62727

Starlette is a lightweight ASGI framework/toolkit. Starting in version 0.39.0 and prior to version 0.49.1 , an unauthenticated attacker can send a crafted HTTP Range header that triggers quadratic-time processing in Starlette's FileResponse Range parsing/merging logic. This enables CPU exhaustion...

Starlette vulnerable to O(n^2) DoS via Range header merging in ``starlette.responses.FileResponse``

Summary An unauthenticated attacker can send a crafted HTTP Range header that triggers quadratic-time processing in Starlette's FileResponse Range parsing/merging logic. This enables CPU exhaustion per request, causing denial‑of‑service for endpoints serving files e.g., StaticFiles or any use of...

GHSA-7F5H-V6XP-FCQ8 Starlette vulnerable to O(n^2) DoS via Range header merging in ``starlette.responses.FileResponse``

Summary An unauthenticated attacker can send a crafted HTTP Range header that triggers quadratic-time processing in Starlette's FileResponse Range parsing/merging logic. This enables CPU exhaustion per request, causing denial‑of‑service for endpoints serving files e.g., StaticFiles or any use of...

CVE-2025-62727 Starlette vulnerable to O(n^2) DoS via Range header merging in starlette.responses.FileResponse

Starlette is a lightweight ASGI framework/toolkit. Starting in version 0.39.0 and prior to version 0.49.1 , an unauthenticated attacker can send a crafted HTTP Range header that triggers quadratic-time processing in Starlette's FileResponse Range parsing/merging logic. This enables CPU exhaustion...

CVE-2025-62727 Starlette vulnerable to O(n^2) DoS via Range header merging in starlette.responses.FileResponse

Starlette is a lightweight ASGI framework/toolkit. Starting in version 0.39.0 and prior to version 0.49.1 , an unauthenticated attacker can send a crafted HTTP Range header that triggers quadratic-time processing in Starlette's FileResponse Range parsing/merging logic. This enables CPU exhaustion...

CVE-2025-62727

Starlette is a lightweight ASGI framework/toolkit. Starting in version 0.39.0 and prior to version 0.49.1 , an unauthenticated attacker can send a crafted HTTP Range header that triggers quadratic-time processing in Starlette's FileResponse Range parsing/merging logic. This enables CPU exhaustion...

PT-2025-44209

Name of the Vulnerable Software and Affected Versions Starlette versions 0.39.0 through 0.49.0 Description Starlette is a lightweight ASGI framework/toolkit. An unauthenticated attacker can send a crafted HTTP Range header that triggers quadratic-time processing in Starlette's FileResponse Range...

The vulnerability of the aiohttp HTTP client, related to issues with symbolic links when processing static routes that contain files with compressed variants in the FileResponse class, allows a hacker to compromise the vulnerable system.

The vulnerability of the aiohttp HTTP client is related to problems with symbolic links when processing static routes that contain files with compressed variants in the FileResponse class. Exploiting this vulnerability can allow an attacker to compromise the vulnerable system remotely...

aiohttp 安全漏洞

aiohttp is an open source asynchronous HTTP client/server framework for asyncio and Python from aio-libs. A security vulnerability exists in aiohttp versions prior to 3.10.2, which stems from the FileResponse class not performing path checking relative to the root directory when looking for...

PYSEC-2022-245

An issue was discovered in the HTTP FileResponse class in Django 3.2 before 3.2.15 and 4.0 before 4.0.7. An application is vulnerable to a reflected file download RFD attack that sets the Content-Disposition header of a FileResponse when the filename is derived from user-supplied input...

UBUNTU-CVE-2022-36359

An issue was discovered in the HTTP FileResponse class in Django 3.2 before 3.2.15 and 4.0 before 4.0.7. An application is vulnerable to a reflected file download RFD attack that sets the Content-Disposition header of a FileResponse when the filename is derived from user-supplied input...

Drupal 8 configuration file download vulnerability analysis-vulnerability warning-the black bar safety net

Author: p0wd3r know Chong Yu 4 0 4 Security lab Date: 2016-09-22 0x00 vulnerability overview 1. Vulnerability description Drupal （ https://www.drupal.org is a free open source content management system, recent researchers have found in it 8. x 8.1.10 version found three security vulnerabilities,...