VDB

CVE-2026-34525

CVE-2026-34525 PUBLISHED CVSS 6.300000190734863 MEDIUM

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.

EPSS 0.13% · 32.1th percentile

Risk Scores

CVSS v4.0
6.300000190734863
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N
EPSS Score
0.13%
32.1th percentile

Affected Products

VendorProductVersions
PyPIaiohttp0
aio-libsaiohttp< 3.13.4

Timeline

  • Apr 1, 2026 CVE Published
  • Apr 2, 2026 Security Advisory
  • May 18, 2026 EPSS Score
  • May 19, 2026 EPSS Score
  • May 20, 2026 EPSS Score
  • May 21, 2026 EPSS Score
  • May 22, 2026 EPSS Score
  • May 23, 2026 EPSS Score
  • May 24, 2026 EPSS Score
  • May 25, 2026 EPSS Score
  • May 26, 2026 EPSS Score
  • May 27, 2026 EPSS Score

References

…and 8 more

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