What’s Vulnerable › Vulnerabilities

CVE-2026-74783: Scriban 6.6.0 through 7.2.0 Parser Recursion Denial of Service

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-16 · updated 2026-09-30
• Weakness: CWE-674

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.

Affected products

• scriban: from 6.6.0 through 7.2.0

References

• https://github.com/scriban/scriban/security/advisories/GHSA-6q7j-xr26-3h2c
• https://www.vulncheck.com/advisories/scriban-through-parser-recursion-denial-of-service
• https://github.com/scriban/scriban/security/advisories/GHSA-6q7j-xr26-3h2c

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