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.

When 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.

This 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.

This issue affects ash_typescript: from 0.15.0 before 0.18.0.
Published: 2026-09-01
Score: 6.3 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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Remediation

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History

Tue, 01 Sep 2026 02:45:00 +0000

Type Values Removed Values Added
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. When 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. This 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. This issue affects ash_typescript: from 0.15.0 before 0.18.0.
Title Route handler return value echoed into AshTypescript error response
First Time appeared Ash-project
Ash-project ash Typescript
Weaknesses CWE-209
CPEs cpe:2.3:a:ash-project:ash_typescript:*:*:*:*:*:*:*:*
Vendors & Products Ash-project
Ash-project ash Typescript
References
Metrics cvssV4_0

{'score': 6.3, 'vector': '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'}

Subscriptions

Ash-project Ash Typescript
cve-icon MITRE

Status: PUBLISHED

Assigner: EEF

Published:

Updated: 2026-09-01T02:09:22.784Z

Reserved: 2026-08-31T00:59:10.001Z

Link: CVE-2026-82733

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-01T03:16:53.373

Modified: 2026-09-01T03:16:53.373

Link: CVE-2026-82733

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-01T03:30:04Z

Weaknesses