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CVE-2026-58055 nghttp2 nghttpx - HTTP Request/Response Smuggling via Upgrade Request with Content-Length

🗓️ 28 Jun 2026 01:32:57Reported by VulnCheckType 
cvelist
 cvelist
🔗 www.cve.org👁 6 Views

CVE-2026-58055: nghttpx forwards an Upgrade with Content-Length, enabling request smuggling and queue poisoning.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-58055
28 Jun 202601:32
attackerkb
CVE
CVE-2026-58055
28 Jun 202601:32
cve
EUVD
EUVD-2026-39975
28 Jun 202601:32
euvd
NVD
CVE-2026-58055
28 Jun 202602:16
nvd
Positive Technologies
PT-2026-53087
28 Jun 202600:00
ptsecurity
[
  {
    "vendor": "nghttp2",
    "product": "nghttp2",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0",
        "status": "affected",
        "versionType": "semver",
        "lessThanOrEqual": "1.69.0"
      }
    ]
  }
]

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