{"id":"CVE-2026-82733","summary":"Route handler return value echoed into AshTypescript error response","details":"Generation of Error Message Containing Sensitive Information vulnerability in ash-project ash_typescript allows an unauthenticated attacker to read internal application data from an HTTP 500 response body.\n\nWhen a typed-controller route handler returns anything other than a %Plug.Conn{}, dispatch/3 in lib/ash_typescript/typed_controller/request_handler.ex passes the value to unexpected_return/2, which interpolates inspect(value, limit: 50) directly into the response message. The limit option bounds elements per collection rather than the term as a whole, so a handler falling through with a term such as {:error, %User{}} or a changeset serialises its full field set, including hashed passwords, tokens, and tenant identifiers, into the JSON error returned to the caller.\n\nThis contradicts the module's own posture elsewhere: the rescue clause gates Exception.message/1 behind AshTypescript.typed_controller_show_raised_errors?/0 and otherwise returns a generic message, while this path is ungated and always echoes.\n\nThis issue affects ash_typescript: from 0.15.0 before 0.18.0.","aliases":["EEF-CVE-2026-82733","GHSA-ghhw-qh7p-55xr"],"modified":"2026-09-02T03:47:32.225470443Z","published":"2026-09-01T02:09:22.784Z","database_specific":{"cwe_ids":["CWE-209"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82733.json","unresolved_ranges":[{"extracted_events":[{"introduced":"546a15e1a2d7dbf1df2d5a6ee4404bc3da87852e"},{"fixed":"dec80e29543f96e43eeece8501376562f17ac638"}],"source":"AFFECTED_FIELD"}],"cna_assigner":"EEF"},"references":[{"type":"WEB","url":"https://cna.erlef.org/cves/CVE-2026-82733.html"},{"type":"WEB","url":"https://github.com"},{"type":"WEB","url":"https://osv.dev/vulnerability/EEF-CVE-2026-82733"},{"type":"WEB","url":"https://repo.hex.pm"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82733.json"},{"type":"ADVISORY","url":"https://github.com/ash-project/ash_typescript/security/advisories/GHSA-ghhw-qh7p-55xr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-82733"},{"type":"FIX","url":"https://github.com/ash-project/ash_typescript/commit/dec80e29543f96e43eeece8501376562f17ac638"},{"type":"PACKAGE","url":"https://github.com/ash-project/ash_typescript"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ash-project/ash_typescript","events":[{"introduced":"fb4cc367b85b68d90b99be692dcbbbfc248c1adb"},{"fixed":"808e4b17ee821a8dac98bda5bf01da0fe1b69d41"},{"fixed":"dec80e29543f96e43eeece8501376562f17ac638"}],"database_specific":{"source":["DESCRIPTION","REFERENCES"],"extracted_events":[{"introduced":"0.15.0"},{"fixed":"0.18.0"}]}}],"versions":["v0.15.0","v0.15.3","v0.15.2","v0.15.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82733.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"}]}