CVE-2026-78693

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Because <code>put_new</code> defers to the handler only when the handler itself set <code>:path</code>, a sanitizing handler that returns a fresh map or deletes <code>:path</code> has that decision reverted. The re-injected path comes from <code>build_error_path/5</code>, which falls back to raw internal Ash attribute and argument names when no <code>field_names</code> mapping is configured. A validation failure on a non-exposed or nested field therefore returns internal names in the GraphQL error <code>path</code>, defeating the application's redaction.</p>\n<p>This issue affects ash_graphql: from 1.9.0 before 1.11.0.</p>"}, {"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's redaction.\n\nThis issue affects ash_graphql: from 1.9.0 before 1.11.0."}], "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. 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The re-injected path comes from <code>build_error_path/5</code>, which falls back to raw internal Ash attribute and argument names when no <code>field_names</code> mapping is configured. A validation failure on a non-exposed or nested field therefore returns internal names in the GraphQL error <code>path</code>, defeating the application's redaction.</p>\n<p>This issue affects ash_graphql: from 1.9.0 before 1.11.0.</p>", "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. 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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.\n\nThis issue affects ash_graphql: from 1.9.0 before 1.11.0."}], "id": "CVE-2026-78693", "lastModified": "2026-09-01T21:15:00.147", "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": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-209"}], "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "type": "Secondary"}]}

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