Vulnerability-Lookup

CVE-2026-78693 (GCVE-0-2026-78693)

Vulnerability from cvelistv5 – Published: 2026-08-30 18:28 – Updated: 2026-08-31 15:58

Title

Incomplete redaction re-attaches the original error path in AshGraphql, leaking internal field names

Summary

Generation of Error Message Containing Sensitive Information vulnerability in ash-project ash_graphql allows a remote client to read internal field names that an application configured its error_handler to redact. In AshGraphql.Errors, each error is passed to the configured error_handler and the returned map is merged with the pre-handler path via Map.put_new(handled, :path, path). Because put_new defers to the handler only when the handler itself set :path, a sanitizing handler that returns a fresh map or deletes :path has that decision reverted. The re-injected path comes from build_error_path/5, which falls back to raw internal Ash attribute and argument names when no field_names mapping is configured. A validation failure on a non-exposed or nested field therefore returns internal names in the GraphQL error path, defeating the application's redaction. This issue affects ash_graphql: from 1.9.0 before 1.11.0.

Severity

6.9 (Medium)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-31 15:58 UTC

CWE

CWE-209 - Generation of Error Message Containing Sensitive Information

Assigner

EEF mitre root

References

4 references

URL	Tags
https://github.com/ash-project/ash_graphql/securi…	vendor-advisoryrelated
https://cna.erlef.org/cves/CVE-2026-78693.html	related
https://osv.dev/vulnerability/EEF-CVE-2026-78693	related
https://github.com/ash-project/ash_graphql/commit…	patch

Impacted products

2 products

Vendor	Product	Version	CPE status
ash-project	ash_graphql	Affected: 1.9.0 , < 1.11.0 (semver) cpe:2.3:a:ash-project:ash_graphql::::::::
ash-project	ash_graphql	Affected: 6d2d8d995906d68cc245d209a9b3f9853405eb61 , < 78e90d369f09f44c534816de541e60841066a467 (git) cpe:2.3:a:ash-project:ash_graphql::::::::

Credits

Peter Ullrich Peter Ullrich Zach Daniel / Ash Project Jonatan Männchen / EEF

Show details on NVD website

JSON

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A validation failure on a non-exposed or nested field therefore returns internal names in the GraphQL error path, defeating the application\u0027s redaction.\\n\\nThis issue affects ash_graphql: from 1.9.0 before 1.11.0.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eGeneration of Error Message Containing Sensitive Information vulnerability in ash-project ash_graphql allows a remote client to read internal field names that an application configured its \u003ccode\u003eerror_handler\u003c/code\u003e to redact.\u003c/p\u003e\\n\u003cp\u003eIn \u003ccode\u003eAshGraphql.Errors\u003c/code\u003e, each error is passed to the configured \u003ccode\u003eerror_handler\u003c/code\u003e and the returned map is merged with the pre-handler path via \u003ccode\u003eMap.put_new(handled, :path, path)\u003c/code\u003e. Because \u003ccode\u003eput_new\u003c/code\u003e defers to the handler only when the handler itself set \u003ccode\u003e:path\u003c/code\u003e, a sanitizing handler that returns a fresh map or deletes \u003ccode\u003e:path\u003c/code\u003e has that decision reverted. The re-injected path comes from \u003ccode\u003ebuild_error_path/5\u003c/code\u003e, which falls back to raw internal Ash attribute and argument names when no \u003ccode\u003efield_names\u003c/code\u003e mapping is configured. A validation failure on a non-exposed or nested field therefore returns internal names in the GraphQL error \u003ccode\u003epath\u003c/code\u003e, defeating the application\u0027s redaction.\u003c/p\u003e\\n\u003cp\u003eThis issue affects ash_graphql: from 1.9.0 before 1.11.0.\u003c/p\u003e\", \"base64\": false}, {\"type\": \"text/markdown\", \"value\": \"Generation of Error Message Containing Sensitive Information vulnerability in ash-project ash_graphql allows a remote client to read internal field names that an application configured its `error_handler` to redact.\\n\\nIn `AshGraphql.Errors`, each error is passed to the configured `error_handler` and the returned map is merged with the pre-handler path via `Map.put_new(handled, :path, path)`. Because `put_new` defers to the handler only when the handler itself set `:path`, a sanitizing handler that returns a fresh map or deletes `:path` has that decision reverted. The re-injected path comes from `build_error_path/5`, which falls back to raw internal Ash attribute and argument names when no `field_names` mapping is configured. A validation failure on a non-exposed or nested field therefore returns internal names in the GraphQL error `path`, defeating the application\u0027s redaction.\\n\\nThis issue affects ash_graphql: from 1.9.0 before 1.11.0.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-209\", \"description\": \"CWE-209 Generation of Error Message Containing Sensitive Information\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:ash-project:ash_graphql:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"1.11.0\", \"versionStartIncluding\": \"1.9.0\"}], \"operator\": \"OR\"}], \"operator\": \"AND\"}], \"providerMetadata\": {\"orgId\": \"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\", \"shortName\": \"EEF\", \"dateUpdated\": \"2026-08-30T18:28:35.282Z\"}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-78693\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-31T15:58:21.710895Z\"}}}], \"references\": [{\"url\": \"https://github.com/ash-project/ash_graphql/security/advisories/GHSA-ppr2-g9h8-w7qp\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"shortName\": \"CISA-ADP\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"dateUpdated\": \"2026-08-31T15:58:41.911Z\"}}]}",
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      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-78693

Vulnerability from fkie_nvd - Published: 2026-08-30 19:17 - Updated: 2026-08-31 16:19

Severity

6.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Summary

References

	URL	Tags
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://cna.erlef.org/cves/CVE-2026-78693.html
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://github.com/ash-project/ash_graphql/commit/78e90d369f09f44c534816de541e60841066a467
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://github.com/ash-project/ash_graphql/security/advisories/GHSA-ppr2-g9h8-w7qp
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://osv.dev/vulnerability/EEF-CVE-2026-78693
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/ash-project/ash_graphql/security/advisories/GHSA-ppr2-g9h8-w7qp

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://repo.hex.pm",
          "cpes": [
            "cpe:2.3:a:ash-project:ash_graphql:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.AshGraphql.Errors\u0027"
          ],
          "packageName": "ash_graphql",
          "packageURL": "pkg:hex/ash_graphql",
          "product": "ash_graphql",
          "programFiles": [
            "lib/graphql/errors.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.AshGraphql.Errors\u0027:to_errors/6"
            }
          ],
          "repo": "https://github.com/ash-project/ash_graphql",
          "vendor": "ash-project",
          "versions": [
            {
              "lessThan": "1.11.0",
              "status": "affected",
              "version": "1.9.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:ash-project:ash_graphql:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.AshGraphql.Errors\u0027"
          ],
          "packageName": "ash-project/ash_graphql",
          "packageURL": "pkg:github/ash-project/ash_graphql",
          "product": "ash_graphql",
          "programFiles": [
            "lib/graphql/errors.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.AshGraphql.Errors\u0027:to_errors/6"
            }
          ],
          "repo": "https://github.com/ash-project/ash_graphql",
          "vendor": "ash-project",
          "versions": [
            {
              "lessThan": "78e90d369f09f44c534816de541e60841066a467",
              "status": "affected",
              "version": "6d2d8d995906d68cc245d209a9b3f9853405eb61",
              "versionType": "git"
            }
          ]
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Generation of Error Message Containing Sensitive Information vulnerability in ash-project ash_graphql allows a remote client to read internal field names that an application configured its error_handler to redact.\n\nIn AshGraphql.Errors, each error is passed to the configured error_handler and the returned map is merged with the pre-handler path via Map.put_new(handled, :path, path). Because put_new defers to the handler only when the handler itself set :path, a sanitizing handler that returns a fresh map or deletes :path has that decision reverted. The re-injected path comes from build_error_path/5, which falls back to raw internal Ash attribute and argument names when no field_names mapping is configured. A validation failure on a non-exposed or nested field therefore returns internal names in the GraphQL error path, defeating the application\u0027s redaction.\n\nThis issue affects ash_graphql: from 1.9.0 before 1.11.0."
    }
  ],
  "id": "CVE-2026-78693",
  "lastModified": "2026-08-31T16:19:13.453",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 6.9,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-78693",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-31T15:58:21.710895Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-30T19:17:28.620",
  "references": [
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://cna.erlef.org/cves/CVE-2026-78693.html"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/ash-project/ash_graphql/commit/78e90d369f09f44c534816de541e60841066a467"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/ash-project/ash_graphql/security/advisories/GHSA-ppr2-g9h8-w7qp"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-78693"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/ash-project/ash_graphql/security/advisories/GHSA-ppr2-g9h8-w7qp"
    }
  ],
  "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-209"
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "type": "Secondary"
    }
  ]
}

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

CVE-2026-78693 (GCVE-0-2026-78693)

FKIE_CVE-2026-78693

Tags

Sightings

Nomenclature