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Advisories

Scriban 6.6.0 through 7.2.0 Parser Recursion Denial of Service

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severity
high
date
Affecting

  • scriban >= 0, < 6.6.0

CWE
  • CWE-674 Uncontrolled Recursion
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
MindflareX
Description
Scriban versions 6.6.0 through 7.2.0 contain a non-enforcing ExpressionDepthLimit guard that fails to stop recursive descent parsing of deeply nested expressions. Attackers can supply templates with deeply nested parentheses, array initializers, object initializers, or unary operators to trigger an uncatchable StackOverflowException that immediately terminates the host process.

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