What is GHSA-hg6j-4rv6-33pg?

GHSA-hg6j-4rv6-33pg is a security advisory published by GitHub Security Advisories with Medium severity. AIOHTTP is vulnerable to cross-origin redirect with per-request cookies

Which CVE IDs does GHSA-hg6j-4rv6-33pg cover?

GHSA-hg6j-4rv6-33pg covers the following CVE IDs: CVE-2026-47265. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

Which products are affected by GHSA-hg6j-4rv6-33pg?

GHSA-hg6j-4rv6-33pg affects 1 product, including: pip/aiohttp:\u003c 3.14.0.

GHSA-hg6j-4rv6-33pgMedium

AIOHTTP is vulnerable to cross-origin redirect with per-request cookies

Vendor

GitHub Security Advisories

Published

June 3, 2026

Last Modified

June 3, 2026

🔗 CVE IDs covered (1)

CVE-2026-47265 →

📋 Description

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

🎯 Affected products1

pip/aiohttp:< 3.14.0

🔗 References (4)

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/advisories/GHSA-hg6j-4rv6-33pg