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CVE-2026-34525

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-34525

Severity

Unknown
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Summary

AIOHTTP: Duplicate Host header accepted

Description

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, multiple Host headers were allowed in aiohttp. This issue has been patched in version 3.13.4.

References

Affected packages

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