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CVE-2026-47221

🗓️ 26 Jun 2026 17:35:29Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 7 Views

Envoy null pointer dereference in internal redirects for bodyless non-GET/HEAD requests on HTTP 303, causing crash and denial of service.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-47221
26 Jun 202617:35
attackerkb
Cvelist
CVE-2026-47221 Envoy: Null pointer deref in internal redirects
26 Jun 202617:35
cvelist
EUVD
EUVD-2026-39823
26 Jun 202617:35
euvd
NVD
CVE-2026-47221
26 Jun 202618:16
nvd
Positive Technologies
PT-2026-52884
26 Jun 202600:00
ptsecurity
Vulnrichment
CVE-2026-47221 Envoy: Null pointer deref in internal redirects
26 Jun 202617:35
vulnrichment
Vulners
Node
envoyproxyenvoyRange1.38.01.38.3
OR
envoyproxyenvoyRange1.37.01.37.5
OR
envoyproxyenvoyRange1.36.01.36.9
OR
envoyproxyenvoyRange1.18.01.35.13
[
  {
    "vendor": "envoyproxy",
    "product": "envoy",
    "versions": [
      {
        "version": ">= 1.38.0, < 1.38.3",
        "status": "affected"
      },
      {
        "version": ">= 1.37.0, < 1.37.5",
        "status": "affected"
      },
      {
        "version": ">= 1.36.0, < 1.36.9",
        "status": "affected"
      },
      {
        "version": ">= 1.18.0, < 1.35.13",
        "status": "affected"
      }
    ]
  }
]

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26 Jun 2026 19:50Current
6Medium risk
Vulners AI Score6
CVSS 3.15.9
SSVC
7