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CVE-2026-59881 AIOHTTP: WebSocket client accepts compressed frames without negotiated permessage-deflate

🗓️ 30 Jul 2026 17:34:32Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 7 Views

AIOHTTP WebSocket client decompresses RSV1 frames without permessage-deflate negotiation, fixed in 3.14.2.

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ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-59881
30 Jul 202617:34
cve
euvd
EUVD
EUVD-2026-51257
30 Jul 202617:34
euvd
nvd
NVD
CVE-2026-59881
30 Jul 202619:18
nvd
vulnrichment
Vulnrichment
CVE-2026-59881 AIOHTTP: WebSocket client accepts compressed frames without negotiated permessage-deflate
30 Jul 202617:34
vulnrichment
[
  {
    "vendor": "aio-libs",
    "product": "aiohttp",
    "versions": [
      {
        "version": "< 3.14.2",
        "status": "affected"
      }
    ]
  }
]

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