← CVE Intelligence

CVE-2026-34518

AIOHTTP: Cookie and Proxy-Authorization headers leaked on cross-origin redirect PUBLISHED

Description (CNA)

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, when following redirects to a different origin, aiohttp drops the Authorization header, but retains the Cookie and Proxy-Authorization headers. This issue has been patched in version 3.13.4.

Affected (CNA)

Vendor / productVersions
aio-libs / aiohttpaffected < 3.13.4

CWE

CWE-200

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.