FKIE_CVE-2026-46600

Vulnerability from fkie_nvd - Published: 2026-07-21 20:17 - Updated: 2026-07-21 20:17
Severity
Summary
Parsing an invalid SVCB or HTTPS RR can panic when the size of a parameter value overflows the message buffer.
References
security@golang.orghttps://go.dev/cl/786345
security@golang.orghttps://go.dev/issue/79795
security@golang.orghttps://pkg.go.dev/vuln/GO-2026-5942
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "golang.org/x/net/dns/dnsmessage",
          "product": "golang.org/x/net/dns/dnsmessage",
          "programRoutines": [
            {
              "name": "unpackSVCBResource"
            },
            {
              "name": "Message.Unpack"
            },
            {
              "name": "Parser.Additional"
            },
            {
              "name": "Parser.AllAdditionals"
            },
            {
              "name": "Parser.AllAnswers"
            },
            {
              "name": "Parser.AllAuthorities"
            },
            {
              "name": "Parser.Answer"
            },
            {
              "name": "Parser.Authority"
            },
            {
              "name": "Parser.HTTPSResource"
            },
            {
              "name": "Parser.SVCBResource"
            }
          ],
          "vendor": "golang.org/x/net",
          "versions": [
            {
              "lessThan": "0.56.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@golang.org"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Parsing an invalid SVCB or HTTPS RR can panic when the size of a parameter value overflows the message buffer."
    }
  ],
  "id": "CVE-2026-46600",
  "lastModified": "2026-07-21T20:17:01.213",
  "metrics": {},
  "published": "2026-07-21T20:17:01.213",
  "references": [
    {
      "source": "security@golang.org",
      "url": "https://go.dev/cl/786345"
    },
    {
      "source": "security@golang.org",
      "url": "https://go.dev/issue/79795"
    },
    {
      "source": "security@golang.org",
      "url": "https://pkg.go.dev/vuln/GO-2026-5942"
    }
  ],
  "sourceIdentifier": "security@golang.org",
  "vulnStatus": "Received"
}



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