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High-risk vulnerability digests

CVE-2026-34520

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OESA-2026-2192 python-aiohttp security update

Details

CVSS v3
9.1
CVSS v4
2.7
NVD published
2026-04-01 21:17:00
EPSS
<0.1% probability · 17.8th percentile — 2026-05-02
Affected versions
cpe:2.3:a:aiohttp:aiohttp:*:*:*:*:*:*:*:*
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, the C parser (the default for most installs) accepted null bytes and control characters in response headers. This issue has been patched in version 3.13.4.
Remediation
Not available in our cache.
Exploit info
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