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CVE-2026-97031

🗓️ 08 Oct 2026 22:53:58Reported by GoType 
cve
 cve
🔗 web.nvd.nist.gov👁 6 Views

Memory exhaustion in crypto/tls when processing multiple ECH outer extension references.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
cvelist
Cvelist
CVE-2026-97031 Reject malformed ECH outer extension references in crypto/tls
8 Oct 202622:53
–cvelist
debiancve
Debian CVE
CVE-2026-97031
8 Oct 202622:53
–debiancve
euvd
EUVD
EUVD-2026-95422
9 Oct 202600:31
–euvd
nvd
NVD
CVE-2026-97031
8 Oct 202623:17
–nvd
osv
OSV
DEBIAN-CVE-2026-97031
8 Oct 202623:17
–osv
osv
OSV
GO-2026-6607 Reject malformed ECH outer extension references in crypto/tls
8 Oct 202622:31
–osv
ptsecurity
Positive Technologies
PT-2026-108321
8 Oct 202600:00
–ptsecurity
redhatcve
RedhatCVE
CVE-2026-97031
8 Oct 202623:12
–redhatcve
Vulners
Node
OR
golanggoRange<1.26.9
golanggoRange1.27.0–1.27.2
[
  {
    "vendor": "Go standard library",
    "product": "crypto/tls",
    "collectionURL": "https://pkg.go.dev",
    "packageName": "crypto/tls",
    "versions": [
      {
        "version": "0",
        "lessThan": "1.26.9",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "1.27.0-0",
        "lessThan": "1.27.2",
        "status": "affected",
        "versionType": "semver"
      }
    ],
    "programRoutines": [
      {
        "name": "decodeInnerClientHello"
      },
      {
        "name": "Conn.Handshake"
      },
      {
        "name": "Conn.HandshakeContext"
      },
      {
        "name": "Conn.Read"
      },
      {
        "name": "Conn.Write"
      },
      {
        "name": "Dial"
      },
      {
        "name": "DialWithDialer"
      },
      {
        "name": "Dialer.Dial"
      },
      {
        "name": "Dialer.DialContext"
      },
      {
        "name": "QUICConn.Start"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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08 Oct 2026 23:17Current
5.8Medium risk
Vulners AI Score5.8
6