Scriban up to 6.6.0 Array Initializer Parsing Template.Parse stack-based overflow

Summaryinfo

A vulnerability, which was classified as problematic, was found in Scriban up to 6.6.0. Impacted is the function Template.Parse of the component Array Initializer Parsing. The manipulation results in stack-based overflow. This vulnerability is identified as CVE-2026-74792. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in Scriban up to 6.6.0. Affected is the function Template.Parse of the component Array Initializer Parsing. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on availability. CVE summarizes:

Scriban before 7.0.0 (affected versions <= 6.6.0) contains a stack overflow vulnerability in nested array initializer parsing. Deeply nested array initializers recurse through a path (ParseArrayInitializer → ParseExpression → ParseArrayInitializer) that is not covered by the ExpressionDepthLimit counter added in the fix for GHSA-wgh7-7m3c-fx25. An attacker who can supply untrusted input to Template.Parse can trigger an uncatchable StackOverflowException that immediately terminates the process, even with the default ExpressionDepthLimit enabled.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-74792 since 08/16/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

Upgrading to version 7.0.0 eliminates this vulnerability.

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Productinfo

Name

• Scriban

Version

• 6.0
• 6.1
• 6.2
• 6.3
• 6.4
• 6.5
• 6.6.0

Website

• Product: https://github.com/scriban/scriban/

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