{"id":"CVE-2026-78693","summary":"Incomplete redaction re-attaches the original error path in AshGraphql, leaking internal field names","details":"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.","aliases":["EEF-CVE-2026-78693","GHSA-ppr2-g9h8-w7qp"],"modified":"2026-09-03T03:30:55.936197712Z","published":"2026-08-30T18:28:35.282Z","database_specific":{"cna_assigner":"EEF","cwe_ids":["CWE-209"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78693.json","unresolved_ranges":[{"extracted_events":[{"introduced":"6d2d8d995906d68cc245d209a9b3f9853405eb61"},{"fixed":"78e90d369f09f44c534816de541e60841066a467"}],"source":"AFFECTED_FIELD"}]},"references":[{"type":"WEB","url":"https://cna.erlef.org/cves/CVE-2026-78693.html"},{"type":"WEB","url":"https://github.com"},{"type":"WEB","url":"https://osv.dev/vulnerability/EEF-CVE-2026-78693"},{"type":"WEB","url":"https://repo.hex.pm"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78693.json"},{"type":"ADVISORY","url":"https://github.com/ash-project/ash_graphql/security/advisories/GHSA-ppr2-g9h8-w7qp"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78693"},{"type":"FIX","url":"https://github.com/ash-project/ash_graphql/commit/78e90d369f09f44c534816de541e60841066a467"},{"type":"PACKAGE","url":"https://github.com/ash-project/ash_graphql"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ash-project/ash_graphql","events":[{"introduced":"374261a4f243d67213f7527c93dde688dcb6ecf2"},{"fixed":"4e2c5476ecfd2c701488627ee46e6eefc58c982e"},{"fixed":"78e90d369f09f44c534816de541e60841066a467"}],"database_specific":{"source":["DESCRIPTION","REFERENCES"],"extracted_events":[{"introduced":"1.9.0"},{"fixed":"1.11.0"}]}}],"versions":["v1.10.1","v1.10.0","v1.9.4","v1.9.3","v1.9.2","v1.9.1","v1.9.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-78693.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}