---
schema_version: '1.0'
id: security-20260711-50a642
url: https://osv.dev/vulnerability/GHSA-hg6j-4rv6-33pg
url_hash: 50a642b8a10277069057c61456216956ea96feccdd8dbe491f1ac57d52960475
canonical_url: https://osv.dev/vulnerability/GHSA-hg6j-4rv6-33pg
source: osv:ghsa
category: security/library
category_raw: cve/library
region: null
tags:
- cve
- CVE-2026-47265
- GHSA-hg6j-4rv6-33pg
- severity: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
- aiohttp
- PyPI
lang: en
published_at: '2026-06-03T21:34:38Z'
fetched_at: '2026-07-11T06:37:17Z'
updated_at: '2026-07-11T06:38:28Z'
status: published
content_hash: f08213cd7342cdef138090847b9b5c37b83a3ad146f9b17c7b866b9a724de828
license_note: full
summary: AIOHTTP is vulnerable to cross-origin redirect with per-request cookies
summary_source: rss
summary_en: AIOHTTP is vulnerable to cross-origin redirect with per-request cookies
entities: []
key_facts: []
related: []
related_auto: []
title: 'CVE-2026-47265: AIOHTTP is vulnerable to cross-origin redirect with per-request
  cookies'
---

# CVE-2026-47265: AIOHTTP is vulnerable to cross-origin redirect with per-request cookies

## TL;DR
AIOHTTP is vulnerable to cross-origin redirect with per-request cookies

## Key Points
- cve / CVE-2026-47265 / GHSA-hg6j-4rv6-33pg / severity: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 / aiohttp / PyPI

## Details
**Severity:** 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
**Advisory:** GHSA-hg6j-4rv6-33pg (CVE-2026-47265)

**Affected (your watchlist):**
- `PyPI:aiohttp` 3.13.3 → fixed in 3.14.0 [docker/docker-strands]

**Details:**
### Summary

Cookies set with the `cookies` parameter on requests are sent after following a cross-origin redirect.

### Impact

If a developer uses the `cookies` parameter on a per-request basis then sensitive data might be leaked to an attacker if they manage to control a redirect.

### Workaround

If unable to upgrade, using a `Cookie` header in the `headers` parameter is not vulnerable.

-----

Patch: https://github.com/aio-libs/aiohttp/commit/f54c40851b0d6c4bbdab97ba518a223adda32478

**References:**
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-hg6j-4rv6-33pg
- https://nvd.nist.gov/vuln/detail/CVE-2026-47265
- https://github.com/aio-libs/aiohttp/commit/f54c40851b0d6c4bbdab97ba518a223adda32478
- https://github.com/aio-libs/aiohttp

_Data: OSV.dev (upstream: ghsa) — https://osv.dev/vulnerability/GHSA-hg6j-4rv6-33pg_

## Source
元記事: [CVE-2026-47265: AIOHTTP is vulnerable to cross-origin redirect with per-request cookies](https://osv.dev/vulnerability/GHSA-hg6j-4rv6-33pg) — published 2026-06-03T21:34:38Z