Uncontrolled Recursion Affecting scriban package, versions [,6.6.0)
Threat Intelligence
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- published26 Mar 2026
- disclosed19 Mar 2026
- creditDishan Sachin
Introduced: 19 Mar 2026
New CVE NOT AVAILABLE CWE-674 (opens in a new tab)How to fix?
Upgrade Scriban to version 6.6.0 or higher.
Overview
Scriban is a 
Scriban is a fast, powerful, safe and lightweight scripting language and engine for .NET, which was primarily developed for text templating with a compatibility mode for parsing liquid templates.
Today, not only Scriban can be used in text templating scenarios, but also can be integrated as a general scripting engine: For example, Scriban is at the core of the scripting engine for kalk, a command line calculator application for developers.
Affected versions of this package are vulnerable to Uncontrolled Recursion via the ParserOptions class. An attacker can cause the hosting process to crash by supplying deeply nested template input that triggers uncontrolled recursion and stack exhaustion.