CVE-2026-34518

Updated on 01 Apr 2026

Severity

2.7 Low severity

Details

CVSS score
2.7
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Overview

About vulnerability

Summary

When following redirects to a different origin, aiohttp drops the Authorization header, but retains the Cookie and Proxy-Authorization headers.

Impact

The Cookie and Proxy-Authorizations headers could contain sensitive information which may be leaked to an unintended party after following a redirect.


Patch: https://github.com/aio-libs/aiohttp/commit/5351c980dcec7ad385730efdf4e1f4338b24fdb6

Details

Affected packages:
aiohttp @ 3.8.4.post4+tuxcare (+4 more)

Fixes