{"id":"CVE-2026-78693","aliases":["EEF-CVE-2026-78693","EUVD-2026-68288","GHSA-ppr2-g9h8-w7qp"],"status":"published","title":"Incomplete redaction re-attaches the original error path in AshGraphql, leaking internal field names","description":"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.","severity":{"version":"4.0","score":6.9,"vector":"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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00524,"percentile":0.44705,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-209"],"published":"2026-08-30T18:28:35Z","modified":"2026-10-28T02:30:40Z","fixes":[{"ecosystem":"Hex","package":"ash_graphql","fixed_in":["1.11.0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Hex","package":"ash_graphql","ranges":[{"type":"SEMVER","events":[{"introduced":"1.9.0"},{"fixed":"1.11.0"}]}],"versions":["1.10.0","1.10.1","1.9.0","1.9.1","1.9.2","1.9.3","1.9.4"]}],"products":[{"vendor":"ash-project","product":"ash_graphql"}],"references":[{"url":"https://github.com/ash-project/ash_graphql/security/advisories/GHSA-ppr2-g9h8-w7qp","tags":["vendor-advisory","related","exploit","advisory"]},{"url":"https://cna.erlef.org/cves/CVE-2026-78693.html","tags":["related","web"]},{"url":"https://osv.dev/vulnerability/EEF-CVE-2026-78693","tags":["related","web"]},{"url":"https://github.com/ash-project/ash_graphql/commit/78e90d369f09f44c534816de541e60841066a467","tags":["patch","fix"]},{"url":"https://github.com","tags":["web"]},{"url":"https://repo.hex.pm","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78693.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78693","tags":["advisory"]},{"url":"https://github.com/ash-project/ash_graphql","tags":["package"]},{"url":"https://hex.pm/packages/ash_graphql","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-78693","title":"Incomplete redaction re-attaches the original error path in AshGraphql, leaking internal field names","description":"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.","status":"published","published":"2026-08-30T18:28:35.282Z","modified":"2026-08-31T15:58:48.218Z","cvss":[{"version":"4.0","score":6.9,"vector":"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","level":"medium","assessor":"cna"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T13:34:48.658051Z"}],"euvd":[{"id":"EUVD-2026-68288","description":"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.","status":"published","published":"2026-08-30T18:28:35Z","modified":"2026-08-31T15:58:48Z","cvss":[{"version":"4.0","score":6.9,"vector":"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","level":"medium"}],"updated_at":"2026-11-02T18:01:20.704822Z"}],"nvd":[{"id":"CVE-2026-78693","description":"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.","status":"published","published":"2026-08-30T19:17:28.62Z","modified":"2026-09-01T21:15:00.147Z","cvss":[{"version":"4.0","score":6.9,"vector":"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","level":"medium","assessor":"secondary"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T14:12:42.691315Z"}],"osv":[{"id":"CVE-2026-78693","title":"Incomplete redaction re-attaches the original error path in AshGraphql, leaking internal field names","description":"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.","status":"published","published":"2026-08-30T18:28:35.282Z","modified":"2026-10-28T02:30:40.524690369Z","cvss":[{"version":"4.0","score":6.9,"vector":"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","level":"medium"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T15:45:17.44708Z"},{"id":"EEF-CVE-2026-78693","title":"Incomplete redaction re-attaches the original error path in AshGraphql, leaking internal field names","description":"## Summary\n\nGeneration 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.","status":"published","published":"2026-08-30T18:28:35.282Z","modified":"2026-09-08T19:15:05.292830779Z","cvss":[{"version":"4.0","score":6.9,"vector":"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","level":"medium"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T15:46:33.520522Z"}]}}