CVE-2025-69225: Inconsistent Interpretation of HTTP Requests

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below contain parser logic which allows non-ASCII decimals to be present in the Range header. There is no known impact, but there is the possibility that there's a method to exploit a request...

CVE-2025-69225

CVE-2025-69225 affects the aiohttp project (versions 3.13.2 and below) where the Range header parser incorrectly allows non-ASCII decimals. The description notes no known impact but discloses a potential method for exploiting a request smuggling vulnerability; remediation is to upgrade to 3.13.3....

CVE-2025-69225 AIOHTTP Regex Mismatch Allows Unicode in ASCII-Only Protocol Fields

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below contain parser logic which allows non-ASCII decimals to be present in the Range header. There is no known impact, but there is the possibility that there's a method to exploit a request...

CVE-2025-69225

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below contain parser logic which allows non-ASCII decimals to be present in the Range header. There is no known impact, but there is the possibility that there's a method to exploit a request...

CVE-2025-69225

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below contain parser logic which allows non-ASCII decimals to be present in the Range header. There is no known impact, but there is the possibility that there's a method to exploit a request...

CVE-2025-69225

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below contain parser logic which allows non-ASCII decimals to be present in the Range header. There is no known impact, but there is the possibility that there's a method to exploit a request...

CVE-2025-69225 AIOHTTP Regex Mismatch Allows Unicode in ASCII-Only Protocol Fields

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below contain parser logic which allows non-ASCII decimals to be present in the Range header. There is no known impact, but there is the possibility that there's a method to exploit a request...

AIOHTTP has unicode match groups in regexes for ASCII protocol elements

Summary The parser allows non-ASCII decimals to be present in the Range header. Impact There is no known impact, but there is the possibility that there's a method to exploit a request smuggling vulnerability. ---- Patch:...

GHSA-MQQC-3GQH-H2X8 AIOHTTP has unicode match groups in regexes for ASCII protocol elements

Summary The parser allows non-ASCII decimals to be present in the Range header. Impact There is no known impact, but there is the possibility that there's a method to exploit a request smuggling vulnerability. ---- Patch:...

PT-2026-1350

Name of the Vulnerable Software and Affected Versions AIOHTTP versions 3.13.2 and below Description AIOHTTP, an asynchronous HTTP client/server framework for asyncio and Python, has an issue in its parser logic. The parser allows non-ASCII decimals to be present in the Range header. This could...

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...

PT-2026-7987

Name of the Vulnerable Software and Affected Versions libsoup affected versions not specified Description A flaw exists in libsoup, an HTTP library used in GNOME-based systems. Improper validation of HTTP Range headers when processing specially crafted requests can lead to out-of-bounds read acce...

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...

Linux Distros Unpatched Vulnerability : CVE-2025-62727

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

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...

DEBIAN-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...