CVE-2026-34515CWE-36CWE-918

AIOHTTP: UNC SSRF/NTLMv2 Credential Theft/Local File Read in static resource handler on Windows

Medium · published April 1, 2026

CVSS v4.0
6.6
EPSS
0%
Percentile
41.7
In the wild
Unconfirmed
What it is

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, on Windows the static resource handler may expose information about a NTLMv2 remote path. This issue has been patched in version 3.13.4.

The record
Technical detail
CVSS v4.0
6.6 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U
EPSS
0.00497 · 41.7th percentile
Weaknesses
CWE-36 · Absolute Path Traversal; CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-04-01T20:10Z
EPSS history
Timeline
  • 01 APR 20:10Z
    AIOHTTP: UNC SSRF/NTLMv2 Credential Theft/Local File Read in static resource handler on Windows
    cvelistv5