CVE-2026-34515

Updated on 01 Apr 2026

Severity

6.6 Medium severity

Details

CVSS score
6.6
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Overview

About vulnerability

Summary

On Windows the static resource handler may expose information about a NTLMv2 remote path.

Impact

If an application is running on Windows, and using aiohttp’s static resource handler (not recommended in production), then it may be possible for an attacker to extract the hash from an NTLMv2 path and then extract the user’s credentials from there.


Patch: https://github.com/aio-libs/aiohttp/commit/0ae2aa076c84573df83fc1fdc39eec0f5862fe3d

Details

Affected packages:
aiohttp @ 3.8.4.post4+tuxcare (+1 more)

Fixes