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CVE-2026-56862

🗓️ 13 Aug 2026 21:58:53Reported by GoType 
cve
 cve
🔗 web.nvd.nist.gov👁 162 Views

crypto/tls accepts unlimited KeyUpdate messages post-handshake, enabling DoS via continuous key derivation.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
osv
OSV
MINI-V49V-GV56-M8R5
15 Aug 202601:49
osv
osv
OSV
MINI-V4FV-7XVQ-92MH
15 Aug 202601:49
osv
osv
OSV
MINI-V4HM-RPV6-2HMJ
15 Aug 202613:33
osv
osv
OSV
MINI-V4JJ-4FGJ-M3MH
14 Aug 202620:05
osv
osv
OSV
MINI-V528-25JW-4XVC
17 Aug 202613:39
osv
osv
OSV
MINI-V534-9JRP-HGCG
16 Aug 202607:27
osv
osv
OSV
MINI-V538-QFW8-66MC
15 Aug 202613:33
osv
osv
OSV
MINI-V542-CGHJ-FHP8
16 Aug 202613:31
osv
osv
OSV
MINI-V56M-FVV6-9WRQ
15 Aug 202607:50
osv
osv
OSV
MINI-V58Q-8PFX-36HC
14 Aug 202614:10
osv
Rows per page
[
  {
    "vendor": "Go standard library",
    "product": "crypto/tls",
    "collectionURL": "https://pkg.go.dev",
    "packageName": "crypto/tls",
    "versions": [
      {
        "version": "0",
        "lessThan": "1.25.13",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "1.26.0-0",
        "lessThan": "1.26.6",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "1.27.0-0",
        "lessThan": "1.27.0-rc.3",
        "status": "affected",
        "versionType": "semver"
      }
    ],
    "programRoutines": [
      {
        "name": "Conn.readRecordOrCCS"
      },
      {
        "name": "Conn.Handshake"
      },
      {
        "name": "Conn.HandshakeContext"
      },
      {
        "name": "Conn.Read"
      },
      {
        "name": "Conn.Write"
      },
      {
        "name": "Dial"
      },
      {
        "name": "DialWithDialer"
      },
      {
        "name": "Dialer.Dial"
      },
      {
        "name": "Dialer.DialContext"
      },
      {
        "name": "QUICConn.HandleData"
      },
      {
        "name": "QUICConn.Start"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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14 Aug 2026 16:16Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.17.5
EPSS0.00568
SSVC
162