VDB

CVE-2026-59881

CVE-2026-59881 PUBLISHED CVSS 6.9 MEDIUM

Reported by GitHub_M · Published July 30, 2026

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.2, the WebSocket client accepts and decompresses frames with the RSV1 bit set even when the permessage-deflate extension was not negotiated, allowing a malicious server to cause unexpected CPU and memory consumption. This issue is fixed in version 3.14.2.

Risk Scores

CVSS 4.0
6.9
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Affected Products

VendorProductVersions
aio-libsaiohttp< 3.14.2
chainguardpy3.13-scanner-test-libraries-aiohttp0, 0, 0
chainguardairflow-core-20, 0, 0
wolfipy3-cassandra-medusa0, 0, 0
chainguardapache-beam-python-3.11-sdk0, 0, 0
wolfikserve0, 0, 0
chainguardtext-generation-inference0, 0
chainguardpy3-cassandra-medusa0, 0, 0
chainguarddask-kubernetes0, 0, 0
chainguardkserve-models-web-app0, 0, 0
chainguarddask-kubernetes-fips0
chainguardkserve0, 0, 0
chainguardpuppygraph-python0, 0, 0
chainguardapache-beam-python-3.12-sdk0, 0, 0
chainguardlmcache-cuda-12.80
chainguardapache-beam-python-3.13-sdk0, 0, 0
chainguarddatahub-ingestion-fips0
chainguardairflow-30, 0, 0
wolfiopen-webui0, 0, 0
chainguardopen-webui0

…and 4 more

Timeline

  • Jul 30, 2026 CVE Published
  • Jul 30, 2026 CVE Updated
  • Jul 31, 2026 Coalition ESS Score
  • Aug 3, 2026 Security Advisory
  • Aug 7, 2026 EPSS Score

References

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