CVE-2024-42367

Source
https://nvd.nist.gov/vuln/detail/CVE-2024-42367
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-42367.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2024-42367
Aliases
Downstream
Related
Published
2024-08-09T17:25:22Z
Modified
2025-10-15T13:07:10.767564Z
Severity
  • 4.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
Summary
In aiohttp, compressed files as symlinks are not protected from path traversal
Details

aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. In versions on the 3.10 branch prior to version 3.10.2, static routes which contain files with compressed variants (.gz or .br extension) are vulnerable to path traversal outside the root directory if those variants are symbolic links. The server protects static routes from path traversal outside the root directory when follow_symlinks=False (default). It does this by resolving the requested URL to an absolute path and then checking that path relative to the root. However, these checks are not performed when looking for compressed variants in the FileResponse class, and symbolic links are then automatically followed when performing the Path.stat() and Path.open() to send the file. Version 3.10.2 contains a patch for the issue.

References

Affected packages

Git / github.com/aio-libs/aiohttp

Affected ranges

Type
GIT
Repo
https://github.com/aio-libs/aiohttp
Events

Affected versions

v3.*

v3.10.0
v3.10.0b1
v3.10.0rc0
v3.10.1