Bug 2454098 (CVE-2026-34518) - CVE-2026-34518 aiohttp: AIOHTTP: Information disclosure via retained Cookie and Proxy-Authorization headers during redirects
Summary: CVE-2026-34518 aiohttp: AIOHTTP: Information disclosure via retained Cookie a...
Keywords:
Status: NEW
Alias: CVE-2026-34518
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
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Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-01 21:02 UTC by OSIDB Bzimport
Modified: 2026-04-01 22:52 UTC (History)
66 users (show)

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Description OSIDB Bzimport 2026-04-01 21:02:16 UTC 
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.
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