Vulnerability-Lookup

GHSA-W74Q-3PP2-465H

Vulnerability from github – Published: 2026-08-25 18:32 – Updated: 2026-08-25 18:32

Details

github.com/graphql-go/graphql (GraphQL for Go) through 0.8.1 does not validate that a scalar variable value matches its declared type. The built-in coerceString and coerceBool functions (scalars.go) accept input whose type does not match the declared String, ID, or Boolean scalar instead of raising the request error that the GraphQL specification mandates. In some cases (but not any typical case of JSON sent to a website), a deeply nested value leads to an unrecoverable "fatal error: stack overflow" condition.

Severity

5.9 (Medium)


                  
                    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-80051"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-25T18:18:07Z",
    "severity": "MODERATE"
  },
  "details": "github.com/graphql-go/graphql (GraphQL for Go) through 0.8.1 does not validate that a scalar variable value matches its declared type. The built-in coerceString and coerceBool functions (scalars.go) accept input whose type does not match the declared String, ID, or Boolean scalar instead of raising the request error that the GraphQL specification mandates. In some cases (but not any typical case of JSON sent to a website), a deeply nested value leads to an unrecoverable \"fatal error: stack overflow\" condition.",
  "id": "GHSA-w74q-3pp2-465h",
  "modified": "2026-08-25T18:32:01Z",
  "published": "2026-08-25T18:32:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80051"
    },
    {
      "type": "WEB",
      "url": "https://github.com/graphql-go/graphql/blob/v0.8.1/scalars.go#L307-L315"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2026/08/25/2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-80051 (GCVE-0-2026-80051)

Vulnerability from cvelistv5 – Published: 2026-08-25 17:55 – Updated: 2026-08-25 19:22

Summary

Severity

5.9 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-25 19:21 UTC

CWE

CWE-1287 - Improper Validation of Specified Type of Input

Assigner

mitre mitre root

References

2 references

URL	Tags
https://github.com/graphql-go/graphql/blob/v0.8.1…	technical-description
https://www.openwall.com/lists/oss-security/2026/…	exploit

Impacted products

1 product

Vendor	Product	Version
graphql-go project	graphql-go	Affected: 0 , ≤ 0.8.1 (semver) cpe:2.3:a:graphql-go_project:graphql-go::::::::

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{
  "containers": {
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        "metrics": [
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            "other": {
              "content": {
                "id": "CVE-2026-80051",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-25T19:21:05.710528Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-25T19:22:26.133Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unknown",
          "packageName": "github.com/graphql-go/graphql",
          "packageURL": "pkg:golang/github.com/graphql-go/graphql",
          "product": "graphql-go",
          "programFiles": [
            "scalars.go"
          ],
          "programRoutines": [
            {
              "name": "coerceString"
            },
            {
              "name": "coerceBool"
            }
          ],
          "repo": "https://github.com/graphql-go/graphql",
          "vendor": "graphql-go project",
          "versions": [
            {
              "lessThanOrEqual": "0.8.1",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "configurations": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eThe denial-of-service (stack-overflow) condition requires that the application\u0027s variable-deserialization \u003ci\u003e\u003c/i\u003elayer does not impose an input nesting-depth limit. Go\u0027s standard encoding/json caps nesting at depth 10000, \u003ci\u003e\u003c/i\u003ewhereas the crash requires ~600,000 levels so the standard JSON path is not exploitable. \u003ci\u003e\u003c/i\u003eRealistic exposure is via a non-JSON transport, programmatically-constructed variable values, or a JSON \u003ci\u003e\u003c/i\u003edecoder configured without a depth cap. The type-validation defect itself requires no special configuration.\u003c/p\u003e"
            }
          ],
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        }
      ],
      "cpeApplicability": [
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          "nodes": [
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              "cpeMatch": [
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              "operator": "OR"
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          "value": "github.com/graphql-go/graphql (GraphQL for Go) through 0.8.1 does not validate that a scalar variable value matches its declared type. The built-in coerceString and coerceBool functions (scalars.go) accept input whose type does not match the declared String, ID, or Boolean scalar instead of raising the request error that the GraphQL specification mandates. In some cases (but not any typical case of JSON sent to a website), a deeply nested value leads to an unrecoverable \"fatal error: stack overflow\" condition."
        }
      ],
      "metrics": [
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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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              "description": "CWE-1287 Improper Validation of Specified Type of Input",
              "lang": "en",
              "type": "CWE"
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-25T17:55:57.383Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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          "url": "https://github.com/graphql-go/graphql/blob/v0.8.1/scalars.go#L307-L315"
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          "url": "https://www.openwall.com/lists/oss-security/2026/08/25/2"
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              "type": "text/html",
              "value": "Decode GraphQL variables with a deserializer that enforces a maximum nesting depth (Go\u0027s standard\u0026nbsp;encoding/json does), which mitigates the stack-overflow condition. There is no library-level workaround for\u0026nbsp;the type-confusion condition short of application-side validation of scalar arguments or a custom scalar;\u0026nbsp;upgrading once a fix ships is the durable remedy."
            }
          ],
          "value": "Decode GraphQL variables with a deserializer that enforces a maximum nesting depth (Go\u0027s standard\u00a0encoding/json does), which mitigates the stack-overflow condition. There is no library-level workaround for\u00a0the type-confusion condition short of application-side validation of scalar arguments or a custom scalar;\u00a0upgrading once a fix ships is the durable remedy."
        }
      ],
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  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
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    "datePublished": "2026-08-25T17:55:57.383Z",
    "dateReserved": "2026-08-25T17:55:04.047Z",
    "dateUpdated": "2026-08-25T19:22:26.133Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-W74Q-3PP2-465H

CVE-2026-80051 (GCVE-0-2026-80051)

Tags

Sightings

Nomenclature