{"api_version":"1","generated_at":"2026-09-01T03:53:45+00:00","cve":"CVE-2026-82733","urls":{"html":"https://cve.report/CVE-2026-82733","api":"https://cve.report/api/cve/CVE-2026-82733.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-82733","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-82733"},"summary":{"title":"Route handler return value echoed into AshTypescript error response","description":"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.","state":"PUBLISHED","assigner":"EEF","published_at":"2026-09-01 03:16:53","updated_at":"2026-09-01 03:16:53"},"problem_types":["CWE-209","CWE-209 CWE-209 Generation of Error Message Containing Sensitive 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Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-82733","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"ash-project","product":"ash_typescript","version":"affected 0.15.0 0.18.0 semver","platforms":[]},{"source":"CNA","vendor":"ash-project","product":"ash_typescript","version":"affected 546a15e1a2d7dbf1df2d5a6ee4404bc3da87852e dec80e29543f96e43eeece8501376562f17ac638 git","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Peter Ullrich","lang":"en"},{"source":"CNA","value":"Peter Ullrich","lang":"en"},{"source":"CNA","value":"Torkild Gundersen Kjevik / Ash Project","lang":"en"},{"source":"CNA","value":"Jonatan Männchen / EEF","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:ash-project:ash_typescript:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.AshTypescript.TypedController.RequestHandler'"],"packageName":"ash_typescript","packageURL":"pkg:hex/ash_typescript","product":"ash_typescript","programFiles":["lib/ash_typescript/typed_controller/request_handler.ex"],"programRoutines":[{"name":"'Elixir.AshTypescript.TypedController.RequestHandler':unexpected_return/2"},{"name":"'Elixir.AshTypescript.TypedController.RequestHandler':handle/4"}],"repo":"https://github.com/ash-project/ash_typescript","vendor":"ash-project","versions":[{"lessThan":"0.18.0","status":"affected","version":"0.15.0","versionType":"semver"}]},{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:ash-project:ash_typescript:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.AshTypescript.TypedController.RequestHandler'"],"packageName":"ash-project/ash_typescript","packageURL":"pkg:github/ash-project/ash_typescript","product":"ash_typescript","programFiles":["lib/ash_typescript/typed_controller/request_handler.ex"],"programRoutines":[{"name":"'Elixir.AshTypescript.TypedController.RequestHandler':unexpected_return/2"},{"name":"'Elixir.AshTypescript.TypedController.RequestHandler':handle/4"}],"repo":"https://github.com/ash-project/ash_typescript","vendor":"ash-project","versions":[{"lessThan":"dec80e29543f96e43eeece8501376562f17ac638","status":"affected","version":"546a15e1a2d7dbf1df2d5a6ee4404bc3da87852e","versionType":"git"}]}],"configurations":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>The application exposes an AshTypescript typed controller over HTTP with a route handler that can return a non-<code>Plug.Conn</code> term carrying sensitive data.</p>"},{"base64":false,"type":"text/markdown","value":"The application exposes an AshTypescript typed controller over HTTP with a route handler that can return a non-`Plug.Conn` term carrying sensitive data."}],"value":"The application exposes an AshTypescript typed controller over HTTP with a route handler that can return a non-Plug.Conn term carrying sensitive data."}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:ash-project:ash_typescript:*:*:*:*:*:*:*:*","versionEndExcluding":"0.18.0","versionStartIncluding":"0.15.0","vulnerable":true}],"negate":false,"operator":"OR"}],"operator":"AND"}],"credits":[{"lang":"en","type":"finder","value":"Peter Ullrich"},{"lang":"en","type":"reporter","value":"Peter Ullrich"},{"lang":"en","type":"remediation developer","value":"Torkild Gundersen Kjevik / Ash Project"},{"lang":"en","type":"coordinator","value":"Jonatan Männchen / EEF"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>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.</p>\n<p>When a typed-controller route handler returns anything other than a <code>%Plug.Conn{}</code>, <code>dispatch/3</code> in <code>lib/ash_typescript/typed_controller/request_handler.ex</code> passes the value to <code>unexpected_return/2</code>, which interpolates <code>inspect(value, limit: 50)</code> directly into the response message. The <code>limit</code> option bounds elements per collection rather than the term as a whole, so a handler falling through with a term such as <code>{:error, %User{}}</code> or a changeset serialises its full field set, including hashed passwords, tokens, and tenant identifiers, into the JSON error returned to the caller.</p>\n<p>This contradicts the module's own posture elsewhere: the <code>rescue</code> clause gates <code>Exception.message/1</code> behind <code>AshTypescript.typed_controller_show_raised_errors?/0</code> and otherwise returns a generic message, while this path is ungated and always echoes.</p>\n<p>This issue affects ash_typescript: from 0.15.0 before 0.18.0.</p>"},{"base64":false,"type":"text/markdown","value":"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."}],"value":"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."}],"impacts":[{"capecId":"CAPEC-54","descriptions":[{"lang":"en","value":"CAPEC-54 Query System for Information"}]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":6.3,"baseSeverity":"MEDIUM","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:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-209","description":"CWE-209 Generation of Error Message Containing Sensitive Information","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-09-01T02:09:22.784Z","orgId":"6b3ad84c-e1a6-4bf7-a703-f496b71e49db","shortName":"EEF"},"references":[{"tags":["related","vendor-advisory"],"url":"https://github.com/ash-project/ash_typescript/security/advisories/GHSA-ghhw-qh7p-55xr"},{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-82733.html"},{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-82733"},{"tags":["patch"],"url":"https://github.com/ash-project/ash_typescript/commit/dec80e29543f96e43eeece8501376562f17ac638"}],"source":{"discovery":"EXTERNAL"},"title":"Route handler return value echoed into AshTypescript error response"}},"cveMetadata":{"assignerOrgId":"6b3ad84c-e1a6-4bf7-a703-f496b71e49db","assignerShortName":"EEF","cveId":"CVE-2026-82733","datePublished":"2026-09-01T02:09:22.784Z","dateReserved":"2026-08-31T00:59:10.001Z","dateUpdated":"2026-09-01T02:09:22.784Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-01 03:16:53","lastModifiedDate":"2026-09-01 03:16:53","problem_types":["CWE-209","CWE-209 CWE-209 Generation of Error Message Containing Sensitive 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handler return value echoed into AshTypescript error respo","CVE":"CVE-2026-82733","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"82733","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"Route handler return value echoed into AshTypescript error respo"}]}}}