CVE-2026-82739
Generation of Error Message Containing Sensitive Information vulnerability in ash-project ash discloses the stored value of a confirmed fiel
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Published: Sep 1, 2026 · Last modified: Sep 1, 2026 · CWE-209
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Generation of Error Message Containing Sensitive Information vulnerability in ash-project ash discloses the stored value of a confirmed field to an actor who fails its confirmation check. Ash.Resource.Validation.Confirm's atomic implementation (atomic/2 in lib/ash/resource/validation/confirm.ex) built the mismatch error with its value set to the field being confirmed. When the actor supplies only the confirmation argument and not the field itself, value resolves through atomic_ref/2 to the field's current stored value, so the mismatch error echoes that stored value back to the actor. Against a confirmation guarding a sensitive attribute, an actor can submit a deliberately wrong confirmation and read the real value from the returned error. The fix reports the actor-supplied confirmation in the error instead of the stored field value. This issue affects ash: from 2.17.20 before 3.32.2.
- cna.erlef.orghttps://cna.erlef.org/cves/CVE-2026-82739.html
- github.comhttps://github.com/ash-project/ash/commit/7dfe5f0b1ba4267580ded947dc861351d4dc8e2b
- github.comhttps://github.com/ash-project/ash/security/advisories/GHSA-66cg-vj5m-8w7v
- osv.devhttps://osv.dev/vulnerability/EEF-CVE-2026-82739
- github.comhttps://github.com/ash-project/ash/security/advisories/GHSA-66cg-vj5m-8w7v
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2026-118736.5 MED—
———An Apache-proxied Dogtag CA REST endpoint exposed by IdM (POST /ca/rest/certrequests) returns HTTP 500 with internal Java stack traces for unauthenticated malformed requests. The same unauthenticated error path emits large multi-line stack traces into the CA debug log, creating a log-amplification resource exhaustion vector (disk growth and I/O contention) without requiring authentication.6hCVE-2026-82733——
———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 0.18.0.6hCVE-2026-77950——
———Generation of Error Message Containing Sensitive Information vulnerability in ash-project ash_typescript allows an unauthenticated attacker to receive unredacted internal error data by provoking an error shape the configured error handler does not match.
apply_error_handler/3 in lib/ash_typescript/rpc/errors.ex is the only hook an application has for redacting or suppressing errors before they reach the client, with a nil return dropping the error entirely. Its rescue clause logs a warning and then returns the original, pre-handler error map. Error handlers are conventionally written as pattern-matching functions over expected error shapes, so an unmatched shape raises FunctionClauseError and the raw transformed error, including any secrets carried in vars, is emitted instead. An intent to suppress an error becomes an intent to publish it. The rescue catches exceptions only, so a handler that throws or exits still propagates.
This issue affects ash_typescript: from 0.8.0 before 0.18.0.6hCVE-2026-82727—18.6%
——6Generation of Error Message Containing Sensitive Information vulnerability in ash-project ash_phoenix writes the entire raw submitted param map into an exception message, so secrets submitted alongside a union form field leak into logs, crash reports and the dev error page.
When AshPhoenix.Form.Auto builds a union sub-form and the submitted _union_type does not match a configured type, both raise sites built the message with inspect(params, pretty: true), embedding the full untrusted param map, and also inspected the internal union constraints[:types]. Because the message is constructed by the library rather than Phoenix's parameter logger, config :phoenix, :filter_parameters never redacts it. An attacker controls both the trigger and the contents: submitting %{"_union_type" => "nope", "password" => "..."} puts the password verbatim in the raised message. The fix reports only the offending _union_type and the valid type names, dropping the param and constraints dumps.
This issue affects ash_phoenix: from 1.2.17 before 2.3.25.6hCVE-2026-82580—18.6%
——6Generation of Error Message Containing Sensitive Information vulnerability in ash-project ash_ai discloses internal error text to chat users.
In AshAi.ToolLoop and AshAi.Tools, an exception raised while executing a tool was serialized verbatim with Exception.message/1 into the tool-result content. That content is appended to the conversation, emitted as a {:tool_result, ...} stream event, and sent back to the model, which typically relays it to the user. No filtering happened first, so anything raised inside a tool callback or lifecycle hook (database constraint messages, adapter errors, query fragments, policy or validation internals) was echoed as-is. A chat user who can steer tool arguments into a raising code path receives the raw internal text. The fix routes raised tool errors through the same safe formatter used for other tool errors.
This issue affects ash_ai: from 0.6.0 before 1.0.0.6hCVE-2026-75760—20.4%
——6Generation of Error Message Containing Sensitive Information vulnerability in ash-project ash_ai discloses provider request state and credentials in a user-facing validation error.
In AshAi.Changes.Vectorize, when the embedding provider call fails the change added a changeset error whose message inspected the raw error term (An error occurred while generating embeddings: #{inspect(error)}). A plain-string add_error produces an Ash.Error.Changes.InvalidChanges in the :invalid class, which AshJsonApi and AshGraphql render back to the caller. The embedding client's error term is not sanitized, so it can carry the request URL, the provider response body, and, for HTTP clients that keep the request in the error struct, the outbound Authorization header with the provider API key. Failures are attacker-reachable via oversized or malformed vectorized content. The fix logs the raw error and returns a generic message.
This issue affects ash_ai: from 0.1.0 before 1.0.0.6h