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CVE-2026-86040

🗓️ 17 Sep 2026 15:20:40Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 29 Views🌐 WEB

Unauthenticated DoS in @libp2p/floodsub via unbounded RPC decode and subscription processing.

Related
Detection
Affected
Refs
Paths
Vulners
Node
OR
protocollibp2pRange<11.0.26
libp2pfloodsubRange<11.0.26
[
  {
    "vendor": "libp2p",
    "product": "js-libp2p",
    "versions": [
      {
        "version": "< 11.0.26",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "@libp2p",
    "product": "floodsub",
    "versions": [
      {
        "version": "< 11.0.26",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
subscriptionsrequest body/floodsub/1.0.0Unauthenticated RPC frames on /floodsub/1.0.0 can cause CPU exhaustion and memory growth by processing an unbounded subscriptions array, leading to denial of service; fixed in version 11.0.26.CWE-400, CWE-401, CWE-770
topicsrequest body/floodsub/1.0.0Unauthenticated RPC frames on /floodsub/1.0.0 can cause CPU exhaustion and memory growth by processing an unbounded subscriptions array, leading to denial of service; fixed in version 11.0.26.CWE-400, CWE-401, CWE-770

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24 Sep 2026 21:19Current
6Medium risk
Vulners AI Score6
CVSS 3.17.5
EPSS0.0067
29