Infinite loop Affecting iodine package, versions >=0.0.1.pre
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RUBY-IODINE-16073479
- published15 Apr 2026
- disclosed14 Apr 2026
- creditUnknown
Introduced: 14 Apr 2026
CVE-2026-41146 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
iodine is a fast HTTP / Websocket Server with built-in Pub/Sub support (with or without Redis), static file support and many other features, optimized for Ruby MRI on Linux / BSD / macOS.
Affected versions of this package are vulnerable to Infinite loop through the fio_json_parse() function. An attacker can cause the process to enter an infinite loop and exhaust CPU resources by submitting specially crafted JSON input containing a nested value starting with 'i' or 'I'.