CVE-2026-27141 (GCVE-0-2026-27141)
Vulnerability from cvelistv5
Published
2026-02-26 18:50
Modified
2026-02-27 19:11
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
Summary
Due to missing nil check, sending 0x0a-0x0f HTTP/2 frames will cause a running server to panic
References
Impacted products
Vendor Product Version
golang.org/x/net golang.org/x/net/http2 Version: 0.50.0   ≤
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{
  "containers": {
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      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-27141",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-27T19:11:24.117207Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-476",
                "description": "CWE-476 NULL Pointer Dereference",
                "lang": "en",
                "type": "CWE"
              }
            ]
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-27T19:11:57.260Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "golang.org/x/net/http2",
          "product": "golang.org/x/net/http2",
          "programRoutines": [
            {
              "name": "typeFrameParser"
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              "name": "ClientConn.Close"
            },
            {
              "name": "ClientConn.Ping"
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            {
              "name": "ClientConn.RoundTrip"
            },
            {
              "name": "ClientConn.Shutdown"
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            {
              "name": "ConfigureServer"
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            {
              "name": "ConfigureTransport"
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            {
              "name": "ConfigureTransports"
            },
            {
              "name": "ConnectionError.Error"
            },
            {
              "name": "ErrCode.String"
            },
            {
              "name": "FrameHeader.String"
            },
            {
              "name": "FrameType.String"
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            {
              "name": "FrameWriteRequest.String"
            },
            {
              "name": "Framer.ReadFrame"
            },
            {
              "name": "Framer.ReadFrameForHeader"
            },
            {
              "name": "Framer.ReadFrameHeader"
            },
            {
              "name": "Framer.WriteContinuation"
            },
            {
              "name": "Framer.WriteData"
            },
            {
              "name": "Framer.WriteDataPadded"
            },
            {
              "name": "Framer.WriteGoAway"
            },
            {
              "name": "Framer.WriteHeaders"
            },
            {
              "name": "Framer.WritePing"
            },
            {
              "name": "Framer.WritePriority"
            },
            {
              "name": "Framer.WritePriorityUpdate"
            },
            {
              "name": "Framer.WritePushPromise"
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            {
              "name": "Framer.WriteRSTStream"
            },
            {
              "name": "Framer.WriteRawFrame"
            },
            {
              "name": "Framer.WriteSettings"
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            {
              "name": "Framer.WriteSettingsAck"
            },
            {
              "name": "Framer.WriteWindowUpdate"
            },
            {
              "name": "GoAwayError.Error"
            },
            {
              "name": "ReadFrameHeader"
            },
            {
              "name": "Server.ServeConn"
            },
            {
              "name": "Setting.String"
            },
            {
              "name": "SettingID.String"
            },
            {
              "name": "SettingsFrame.ForeachSetting"
            },
            {
              "name": "StreamError.Error"
            },
            {
              "name": "Transport.CloseIdleConnections"
            },
            {
              "name": "Transport.NewClientConn"
            },
            {
              "name": "Transport.RoundTrip"
            },
            {
              "name": "Transport.RoundTripOpt"
            },
            {
              "name": "bufferedWriter.Flush"
            },
            {
              "name": "bufferedWriter.Write"
            },
            {
              "name": "bufferedWriterTimeoutWriter.Write"
            },
            {
              "name": "chunkWriter.Write"
            },
            {
              "name": "clientConnPool.GetClientConn"
            },
            {
              "name": "connError.Error"
            },
            {
              "name": "dataBuffer.Read"
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            {
              "name": "duplicatePseudoHeaderError.Error"
            },
            {
              "name": "gzipReader.Close"
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            {
              "name": "gzipReader.Read"
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            {
              "name": "headerFieldNameError.Error"
            },
            {
              "name": "headerFieldValueError.Error"
            },
            {
              "name": "netHTTPClientConn.Close"
            },
            {
              "name": "netHTTPClientConn.RoundTrip"
            },
            {
              "name": "noDialClientConnPool.GetClientConn"
            },
            {
              "name": "noDialH2RoundTripper.NewClientConn"
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            {
              "name": "noDialH2RoundTripper.RoundTrip"
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            {
              "name": "pipe.Read"
            },
            {
              "name": "priorityWriteSchedulerRFC7540.CloseStream"
            },
            {
              "name": "priorityWriteSchedulerRFC7540.OpenStream"
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            {
              "name": "priorityWriteSchedulerRFC9218.OpenStream"
            },
            {
              "name": "pseudoHeaderError.Error"
            },
            {
              "name": "requestBody.Close"
            },
            {
              "name": "requestBody.Read"
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            {
              "name": "responseWriter.Flush"
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            {
              "name": "responseWriter.FlushError"
            },
            {
              "name": "responseWriter.Push"
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            {
              "name": "responseWriter.SetReadDeadline"
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            {
              "name": "responseWriter.SetWriteDeadline"
            },
            {
              "name": "responseWriter.Write"
            },
            {
              "name": "responseWriter.WriteHeader"
            },
            {
              "name": "responseWriter.WriteString"
            },
            {
              "name": "roundRobinWriteScheduler.OpenStream"
            },
            {
              "name": "serverConn.CloseConn"
            },
            {
              "name": "serverConn.Flush"
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            {
              "name": "stickyErrWriter.Write"
            },
            {
              "name": "transportResponseBody.Close"
            },
            {
              "name": "transportResponseBody.Read"
            },
            {
              "name": "unencryptedTransport.RoundTrip"
            },
            {
              "name": "writeData.String"
            }
          ],
          "vendor": "golang.org/x/net",
          "versions": [
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              "lessThan": "0.51.0",
              "status": "affected",
              "version": "0.50.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Due to missing nil check, sending 0x0a-0x0f HTTP/2 frames will cause a running server to panic"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-476: NULL Pointer Dereference",
              "lang": "en"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-26T18:50:31.830Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27141"
        },
        {
          "url": "https://go.dev/cl/746180"
        },
        {
          "url": "https://go.dev/issue/77652"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-4559"
        }
      ],
      "title": "Sending certain HTTP/2 frames can cause a server to panic in golang.org/x/net"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2026-27141",
    "datePublished": "2026-02-26T18:50:31.830Z",
    "dateReserved": "2026-02-17T19:57:28.435Z",
    "dateUpdated": "2026-02-27T19:11:57.260Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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