CyberRota Analysis
AI-GeneratedScriban versions prior to 6.6.0 are vulnerable to an uncontrolled recursion flaw in their recursive-descent parser, allowing attackers to exploit untrusted or user-supplied templates. By supplying deeply nested templates, an attacker can trigger a StackOverflowException, leading to immediate and unrecoverable termination of the hosting process, resulting in a denial of service. Organizations utilizing Scriban for template processing, especially those handling untrusted inputs, should prioritize patching to mitigate this high-severity vulnerability.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
Scriban before 6.6.0 contains an uncontrolled recursion vulnerability in its recursive-descent parser. The parser does not enforce a default expression depth limit (the ExpressionDepthLimit property in ParserOptions defaults to null/disabled), so an attacker who controls template input can supply a deeply nested template (e.g., thousands of nested parentheses or blocks) that exhausts thread stack space and raises a StackOverflowException. Because a StackOverflowException cannot be caught in .NET, this causes immediate, unrecoverable termination of the hosting process, resulting in a denial of service. Applications that process untrusted or user-supplied templates can be exploited remotely without authentication.