VDB

CVE-2026-54277

CVE-2026-54277 PUBLISHED CVSS 6.6 MEDIUM

Reported by GitHub_M · Published June 22, 2026

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, it is possible to bypass the max_line_size check in parts of an HTTP request in the C parser. If using the optimised C parser (the default in pre-built wheels), then an attacker may be able to send oversized lines through the HTTP parser and use an excessive amount of memory, potentially leading to DoS. This vulnerability is fixed in 3.14.1.

Risk Scores

CVSS 4.0
6.6
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U

Affected Products

VendorProductVersions
aio-libsaiohttp< 3.14.1
chainguardawx0, 0, 0
chainguardlmcache-cuda-12.80, 0, 0
aio-libsaiohttp< 3.14.1, < 3.14.1, < 3.14.1
chainguardpy3.13-scanner-test-libraries-aiohttp0, 0, 0
chainguardpy3-vllm-cuda-12.90, 0, 0
wolfiopen-webui0, 0, 0
chainguardpy3-vllm-cuda-12.40, 0, 0
chainguardtritonserver-backend-vllm-cuda-12.90, 0, 0
PyPIaiohttp0
chainguardpy3-vllm-cuda-13.00, 0, 0
chainguarddask-kubernetes-fips0, 0, 0
chainguardmlflow-fips0, 0, 0
chainguardapache-beam-python-3.13-sdk0, 0, 0
chainguardapache-beam-python-3.12-sdk0, 0, 0
wolfiairflow-30, 0, 0
chainguardairflow-30, 0, 0
chainguardauthentik-2025.120, 0, 0
chainguardauthentik-fips-2025.120, 0, 0
chainguardauthentik-fips-2026.20, 0, 0

…and 10 more

Timeline

  • Jun 15, 2026 CVE Published
  • Jun 23, 2026 Security Advisory
  • Jul 4, 2026 EPSS Score
  • Jul 13, 2026 CVE Updated
  • Aug 7, 2026 EPSS Score
  • Aug 24, 2026 EPSS Score
  • Aug 27, 2026 EPSS Score
  • Sep 1, 2026 EPSS Score
  • Sep 6, 2026 EPSS Score

References

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