Vulnerability-Lookup

GHSA-FXG5-WQ6X-VR4W

Vulnerability from github – Published: 2023-01-14 00:30 – Updated: 2025-04-04 19:26

Summary

golang.org/x/net/http2/h2c vulnerable to request smuggling attack

Details

A request smuggling attack is possible when using MaxBytesHandler. When using MaxBytesHandler, the body of an HTTP request is not fully consumed. When the server attempts to read HTTP2 frames from the connection, it will instead be reading the body of the HTTP request, which could be attacker-manipulated to represent arbitrary HTTP2 requests.

Specific Go Packages Affected

golang.org/x/net/http2/h2c

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "golang.org/x/net"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-20220524220425-1d687d428aca"
            },
            {
              "fixed": "0.1.1-0.20221104162952-702349b0e862"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-41721"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-444"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-01-20T22:40:06Z",
    "nvd_published_at": "2023-01-13T23:15:00Z",
    "severity": "HIGH"
  },
  "details": "A request smuggling attack is possible when using MaxBytesHandler. When using MaxBytesHandler, the body of an HTTP request is not fully consumed. When the server attempts to read HTTP2 frames from the connection, it will instead be reading the body of the HTTP request, which could be attacker-manipulated to represent arbitrary HTTP2 requests.\n\n### Specific Go Packages Affected\ngolang.org/x/net/http2/h2c",
  "id": "GHSA-fxg5-wq6x-vr4w",
  "modified": "2025-04-04T19:26:05Z",
  "published": "2023-01-14T00:30:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-41721"
    },
    {
      "type": "PACKAGE",
      "url": "https://cs.opensource.google/go/x/net"
    },
    {
      "type": "WEB",
      "url": "https://go.dev/cl/447396"
    },
    {
      "type": "WEB",
      "url": "https://go.dev/issue/56352"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X3H3EWQXM2XL5AGBX6UL443JEJ3GQXJN"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X5DXTLLWN6HKI5I35EUZRBISTNZJ75GP"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2023-1495"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "golang.org/x/net/http2/h2c vulnerable to request smuggling attack"
}

CLEANSTART-2026-ZK86640 (GHSA-FXG5-WQ6X-VR4W)

Vulnerability from cleanstart – Published: 2026-09-18 10:02 – Updated: 2026-10-15 12:00 – Source website

Summary

Security fix for GHSA-fxg5-wq6x-vr4w applied in: wavefront-collector-for-kubernetes 1.13.0-r0

Details

Security vulnerability affects the wavefront-collector-for-kubernetes package. This issue is resolved in later releases. See references for vulnerability details.

Severity

7.5 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

URL

Type

	https://github.com/cleanstart-dev/cleanstart-secu…	ADVISORY
	https://osv.dev/vulnerability/GHSA-fxg5-wq6x-vr4w	WEB

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "wavefront-collector-for-kubernetes",
        "purl": "pkg:apk/cleanstart/wavefront-collector-for-kubernetes"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.13.0-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [],
  "database_specific": {},
  "details": "Security vulnerability affects the wavefront-collector-for-kubernetes package. This issue is resolved in later releases. See references for vulnerability details.",
  "id": "CLEANSTART-2026-ZK86640",
  "modified": "2026-10-15T12:00:00Z",
  "published": "2026-09-18T10:02:03.900394Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-ZK86640.json"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/GHSA-fxg5-wq6x-vr4w"
    }
  ],
  "related": [],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Security fix for GHSA-fxg5-wq6x-vr4w applied in: wavefront-collector-for-kubernetes 1.13.0-r0",
  "upstream": [
    "GHSA-fxg5-wq6x-vr4w"
  ]
}

CVE-2022-41721 (GCVE-0-2022-41721)

Vulnerability from cvelistv5 – Published: 2023-01-13 22:46 – Updated: 2025-04-04 14:46

Title

Request smuggling due to improper request handling in golang.org/x/net/http2/h2c

Summary

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-04 14:43 UTC

CWE

CWE 444: Inconsistent Interpretation of HTTP Requests ("HTTP Request/Response Smuggling)

Assigner

Go CNA under the Google root

CNA scorecard E 42/100 over 74 records in the last 180 days details

References

5 references

URL	Tags
https://go.dev/issue/56352
https://go.dev/cl/447396
https://pkg.go.dev/vuln/GO-2023-1495
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…

Impacted products

1 product

Vendor	Product	Version
golang.org/x/net	golang.org/x/net/http2/h2c	Affected: 0.0.0-20220524220425-1d687d428aca , < 0.1.1-0.20221104162952-702349b0e862 (semver)

Credits

John Howard (Google)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T12:49:43.550Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://go.dev/issue/56352"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://go.dev/cl/447396"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://pkg.go.dev/vuln/GO-2023-1495"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X3H3EWQXM2XL5AGBX6UL443JEJ3GQXJN/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X5DXTLLWN6HKI5I35EUZRBISTNZJ75GP/"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "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-2022-41721",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-04T14:43:40.503783Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-04T14:46:17.808Z",
          "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/h2c",
          "product": "golang.org/x/net/http2/h2c",
          "programRoutines": [
            {
              "name": "h2cHandler.ServeHTTP"
            },
            {
              "name": "h2cUpgrade"
            }
          ],
          "vendor": "golang.org/x/net",
          "versions": [
            {
              "lessThan": "0.1.1-0.20221104162952-702349b0e862",
              "status": "affected",
              "version": "0.0.0-20220524220425-1d687d428aca",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "John Howard (Google)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A request smuggling attack is possible when using MaxBytesHandler. When using MaxBytesHandler, the body of an HTTP request is not fully consumed. When the server attempts to read HTTP2 frames from the connection, it will instead be reading the body of the HTTP request, which could be attacker-manipulated to represent arbitrary HTTP2 requests."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE 444: Inconsistent Interpretation of HTTP Requests (\"HTTP Request/Response Smuggling)",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-08-27T02:06:08.833Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/issue/56352"
        },
        {
          "url": "https://go.dev/cl/447396"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2023-1495"
        },
        {
          "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X3H3EWQXM2XL5AGBX6UL443JEJ3GQXJN/"
        },
        {
          "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X5DXTLLWN6HKI5I35EUZRBISTNZJ75GP/"
        }
      ],
      "title": "Request smuggling due to improper request handling in golang.org/x/net/http2/h2c"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2022-41721",
    "datePublished": "2023-01-13T22:46:22.064Z",
    "dateReserved": "2022-09-28T17:00:06.609Z",
    "dateUpdated": "2025-04-04T14:46:17.808Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

GHSA-FXG5-WQ6X-VR4W

Specific Go Packages Affected

CLEANSTART-2026-ZK86640 (GHSA-FXG5-WQ6X-VR4W)

CVE-2022-41721 (GCVE-0-2022-41721)

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour