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.
Metrics
Affected Vendors & Products
References
History
Tue, 01 Sep 2026 22:00:00 +0000
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| Metrics |
ssvc
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Tue, 01 Sep 2026 02:45:00 +0000
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| Description | 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. | |
| Title | RPC error handler fails open in AshTypescript, disclosing unredacted errors | |
| First Time appeared |
Ash-project
Ash-project ash Typescript |
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| Weaknesses | CWE-209 | |
| CPEs | cpe:2.3:a:ash-project:ash_typescript:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Ash-project
Ash-project ash Typescript |
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| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: EEF
Published: 2026-09-01T02:08:54.754Z
Updated: 2026-09-01T14:53:26.458Z
Reserved: 2026-08-30T17:30:01.402Z
Link: CVE-2026-77950
Updated: 2026-09-01T14:50:36.257Z
Status : Deferred
Published: 2026-09-01T03:16:51.660
Modified: 2026-09-01T21:15:00.147
Link: CVE-2026-77950
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