SEPTEMBER 17, 2026
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Case File

CVE-2026-77950

MEDIUM · CVSS 6.3 EPSS 0.32% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-01 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

The vulnerability in ash_typescript allows unauthenticated attackers to access unredacted internal error messages when an error shape does not match the configured error handler, potentially exposing sensitive information. This issue arises from the improper handling of error responses, where unmatched error shapes lead to the disclosure of raw error data, including secrets. Organizations using ash_typescript versions from 0.8.0 to before 0.18.0 should prioritize remediation to prevent potential data leaks.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-77950
Severity
MEDIUM
CVSS
6.3
EPSS
0.32%

Original NVD 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.