data/osv/GO-2026-4918.json

{
  "schema_version": "1.3.1",
  "id": "GO-2026-4918",
  "modified": "0001-01-01T00:00:00Z",
  "published": "0001-01-01T00:00:00Z",
  "aliases": [
    "CVE-2026-33814"
  ],
  "summary": "Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net",
  "details": "When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGS_MAX_FRAME_SIZE with a value of 0.",
  "affected": [
    {
      "package": {
        "name": "golang.org/x/net",
        "ecosystem": "Go"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.53.0"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "imports": [
          {
            "path": "golang.org/x/net/http2",
            "symbols": [
              "Transport.NewClientConn",
              "Transport.RoundTrip",
              "Transport.RoundTripOpt",
              "clientConnPool.GetClientConn",
              "clientConnReadLoop.processSettingsNoWrite",
              "noDialClientConnPool.GetClientConn",
              "noDialH2RoundTripper.NewClientConn",
              "noDialH2RoundTripper.RoundTrip",
              "unencryptedTransport.RoundTrip"
            ]
          }
        ]
      }
    },
    {
      "package": {
        "name": "stdlib",
        "ecosystem": "Go"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.25.10"
            },
            {
              "introduced": "1.26.0-0"
            },
            {
              "fixed": "1.26.3"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "imports": [
          {
            "path": "net/http",
            "symbols": [
              "Client.CloseIdleConnections",
              "Client.Do",
              "Client.Get",
              "Client.Head",
              "Client.Post",
              "Client.PostForm",
              "ClientConn.Close",
              "ClientConn.RoundTrip",
              "Get",
              "Head",
              "Post",
              "PostForm",
              "Transport.CloseIdleConnections",
              "Transport.NewClientConn",
              "Transport.RoundTrip",
              "http1ClientConn.Close",
              "http1ClientConn.RoundTrip",
              "http2Transport.NewClientConn",
              "http2Transport.RoundTrip",
              "http2Transport.RoundTripOpt",
              "http2clientConnPool.GetClientConn",
              "http2clientConnReadLoop.processSettingsNoWrite",
              "http2noDialClientConnPool.GetClientConn",
              "http2noDialH2RoundTripper.NewClientConn",
              "http2noDialH2RoundTripper.RoundTrip",
              "http2unencryptedTransport.RoundTrip"
            ]
          }
        ]
      }
    }
  ],
  "references": [
    {
      "type": "FIX",
      "url": "https://go.dev/cl/761581"
    },
    {
      "type": "FIX",
      "url": "https://go.dev/cl/761640"
    },
    {
      "type": "REPORT",
      "url": "https://go.dev/issue/78476"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/g/golang-announce/c/qcCIEXso47M"
    }
  ],
  "credits": [
    {
      "name": "Marwan Atia (marwansamir688@gmail.com)"
    }
  ],
  "database_specific": {
    "url": "https://pkg.go.dev/vuln/GO-2026-4918",
    "review_status": "REVIEWED"
  }
}