CVE-2025-69226
Unknown Unknown - Not Provided
Path Disclosure via Static File Normalization in AIOHTTP

Publication date: 2026-01-05

Last updated on: 2026-01-05

Assigner: GitHub, Inc.

Description
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below enable an attacker to ascertain the existence of absolute path components through the path normalization logic for static files meant to prevent path traversal. If an application uses web.static() (not recommended for production deployments), it may be possible for an attacker to ascertain the existence of path components. This issue is fixed in version 3.13.3.
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Meta Information
Published
2026-01-05
Last Modified
2026-01-05
Generated
2026-06-16
AI Q&A
2026-01-06
EPSS Evaluated
2026-06-15
NVD
CVE-2025-69226
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
aiohttp aiohttp to 3.13.3 (exc)
aiohttp aiohttp 3.13.3
aiohttp aiohttp From 3.13.2 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
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.
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Executive Summary

This vulnerability exists in AIOHTTP versions 3.13.2 and below, where the path normalization logic for static files intended to prevent path traversal can be bypassed. Specifically, if an application uses the web.static() function (which is not recommended for production), an attacker may be able to determine the existence of absolute path components on the server. This means the attacker can gain information about the file system structure by exploiting how static file paths are handled.

Impact Analysis

The vulnerability allows an attacker to ascertain the existence of absolute path components on the server, potentially revealing sensitive information about the server's file system structure. This information disclosure could aid further attacks or reconnaissance, increasing the risk to the affected system.

Mitigation Strategies

Upgrade AIOHTTP to version 3.13.3 or later, as this version contains the fix for the vulnerability. Additionally, avoid using web.static() in production deployments to reduce exposure.

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