Vulnerability-Lookup

CVE-2023-22477 (GCVE-0-2023-22477)

Vulnerability from cvelistv5 – Published: 2023-01-09 14:12 – Updated: 2025-03-10 21:31

Title

Mercurius is vulnerable to denial of service (DoS) when using subscriptions

Summary

Mercurius is a GraphQL adapter for Fastify. Any users of Mercurius until version 10.5.0 are subjected to a denial of service attack by sending a malformed packet over WebSocket to `/graphql`. This issue was patched in #940. As a workaround, users can disable subscriptions.

Severity

5.3 (Medium)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-03-10 21:02 UTC

CWE

CWE-248 - Uncaught Exception

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/mercurius-js/mercurius/securit…	x_refsource_CONFIRM
https://github.com/mercurius-js/mercurius/issues/939	x_refsource_MISC
https://github.com/mercurius-js/mercurius/pull/940	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
mercurius-js	mercurius	Affected: < 10.5.0	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2023-22477

Vulnerability from fkie_nvd - Published: 2023-01-09 15:15 - Updated: 2026-06-17 05:35

Severity

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/mercurius-js/mercurius/issues/939	Exploit, Issue Tracking, Third Party Advisory
security-advisories@github.com	https://github.com/mercurius-js/mercurius/pull/940	Patch, Third Party Advisory
security-advisories@github.com	https://github.com/mercurius-js/mercurius/security/advisories/GHSA-cm8h-q92v-xcfc	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/mercurius-js/mercurius/issues/939	Exploit, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/mercurius-js/mercurius/pull/940	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/mercurius-js/mercurius/security/advisories/GHSA-cm8h-q92v-xcfc	Patch, Third Party Advisory

Impacted products

	Vendor	Product	Version
	mercurius_project	mercurius	*
	mercurius_project	mercurius	*

JSON

To clipboard

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      "affectedData": [
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          "product": "mercurius",
          "vendor": "mercurius-js",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 10.5.0"
            }
          ]
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              "versionEndExcluding": "8.13.2",
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            },
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              "versionEndExcluding": "11.5.0",
              "versionStartIncluding": "9.0.0",
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  "descriptions": [
    {
      "lang": "en",
      "value": "Mercurius is a GraphQL adapter for Fastify. Any users of Mercurius until version 10.5.0 are subjected to a denial of service attack by sending a malformed packet over WebSocket to `/graphql`. This issue was patched in #940. As a workaround, users can disable subscriptions.\n\n"
    },
    {
      "lang": "es",
      "value": "Mercurius es un adaptador GraphQL para Fastify. Cualquier usuario de Mercurius hasta la versi\u00f3n 10.5.0 est\u00e1 sujeto a un ataque de denegaci\u00f3n de servicio al enviar un paquete con formato incorrecto a trav\u00e9s de WebSocket a \"/graphql\". Este problema se solucion\u00f3 en el n.\u00b0 940. Como workaround, los usuarios pueden desactivar las suscripciones."
    }
  ],
  "id": "CVE-2023-22477",
  "lastModified": "2026-06-17T05:35:32.530",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "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:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-22477",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-03-10T21:02:16.984138Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2023-01-09T15:15:11.127",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "url": "https://github.com/mercurius-js/mercurius/issues/939"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/mercurius-js/mercurius/pull/940"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/mercurius-js/mercurius/security/advisories/GHSA-cm8h-q92v-xcfc"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "url": "https://github.com/mercurius-js/mercurius/issues/939"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/mercurius-js/mercurius/pull/940"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/mercurius-js/mercurius/security/advisories/GHSA-cm8h-q92v-xcfc"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-248"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-CM8H-Q92V-XCFC

Vulnerability from github – Published: 2023-01-09 21:55 – Updated: 2023-01-10 16:15

Summary

mercurius has Uncaught Exception when using subscriptions

Details

Impact

Any users of Mercurius until version v11.5.0 are subjected to a denial of service attack by sending a malformed packet over WebSocket to /graphql.

Patches

This was patched in https://github.com/mercurius-js/mercurius/pull/940. The patch was released as v11.5.0 and v8.13.2.

Workarounds

Disable subscriptions.

References

Reported publicly as https://github.com/mercurius-js/mercurius/issues/939. The same problem was solved in https://github.com/fastify/fastify-websocket/pull/228

Severity

5.3 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "mercurius"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "9.0.0"
            },
            {
              "fixed": "11.5.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "mercurius"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.13.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-22477"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-248"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-01-09T21:55:44Z",
    "nvd_published_at": "2023-01-09T15:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nAny users of Mercurius until version v11.5.0 are subjected to a denial of service attack by sending a malformed packet over WebSocket to `/graphql`.\n\n### Patches\n\nThis was patched in https://github.com/mercurius-js/mercurius/pull/940.\nThe patch was released as v11.5.0 and v8.13.2.\n\n### Workarounds\n\nDisable subscriptions.\n\n### References\n\nReported publicly as https://github.com/mercurius-js/mercurius/issues/939.\nThe same problem was solved in https://github.com/fastify/fastify-websocket/pull/228\n",
  "id": "GHSA-cm8h-q92v-xcfc",
  "modified": "2023-01-10T16:15:07Z",
  "published": "2023-01-09T21:55:44Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/mercurius-js/mercurius/security/advisories/GHSA-cm8h-q92v-xcfc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-22477"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mercurius-js/mercurius/issues/939"
    },
    {
      "type": "WEB",
      "url": "https://github.com/fastify/fastify-websocket/pull/228"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mercurius-js/mercurius/pull/940"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mercurius-js/mercurius"
    }
  ],
  "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:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "mercurius has Uncaught Exception when using subscriptions"
}

GSD-2023-22477

Vulnerability from gsd - Updated: 2023-12-13 01:20

Details

Aliases

CVE-2023-22477

Aliases

CVE-2023-22477

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2023-22477",
    "id": "GSD-2023-22477"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-22477"
      ],
      "details": "Mercurius is a GraphQL adapter for Fastify. Any users of Mercurius until version 10.5.0 are subjected to a denial of service attack by sending a malformed packet over WebSocket to `/graphql`. This issue was patched in #940. As a workaround, users can disable subscriptions.",
      "id": "GSD-2023-22477",
      "modified": "2023-12-13T01:20:43.114301Z",
      "schema_version": "1.4.0"
    }
  },
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          "vendor_data": [
            {
              "product": {
                "product_data": [
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                    "version": {
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                        {
                          "version_affected": "=",
                          "version_value": "\u003c 10.5.0"
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          }
        ]
      },
      "impact": {
        "cvss": [
          {
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            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "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:L",
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          },
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      },
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        "discovery": "UNKNOWN"
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    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c8.13.2||\u003e=9.0.0 \u003c11.5.0",
          "affected_versions": "All versions before 8.13.2, all versions starting from 9.0.0 before 11.5.0",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
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            "CWE-937"
          ],
          "date": "2023-01-12",
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          "fixed_versions": [
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          ],
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          "package_slug": "npm/mercurius",
          "pubdate": "2023-01-09",
          "solution": "Upgrade to versions 8.13.2, 11.5.0 or above.",
          "title": "Uncaught Exception",
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          ],
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        }
      ]
    },
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                "versionEndExcluding": "11.5.0",
                "versionStartIncluding": "9.0.0",
                "vulnerable": true
              },
              {
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                "cpe_name": [],
                "versionEndExcluding": "8.13.2",
                "vulnerable": true
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        }
      },
      "lastModifiedDate": "2023-01-12T21:35Z",
      "publishedDate": "2023-01-09T15:15Z"
    }
  }
}

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.

Detection rules are retrieved from Rulezet.

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

CVE-2023-22477 (GCVE-0-2023-22477)

FKIE_CVE-2023-22477

GHSA-CM8H-Q92V-XCFC

Impact

Patches

Workarounds

References

GSD-2023-22477

Tags

Sightings

Nomenclature

Related by attack behaviour