Vulnerability · Published Aug 16, 2026 · Assigned by VulnCheck

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

High 7.5

In plain English

A high-severity security flaw in scriban from scriban. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.3%top 72.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
NuGet	scriban	7.2.1	GHSA-6q7j-xr26-3h2c
NuGet	scriban.signed	7.2.1	GHSA-6q7j-xr26-3h2c

Affected products (as reported)

Vendor	Product	Versions
scriban	scriban	6.6.0 – through 7.2.0

Weakness: CWE-674 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

GitHub Security Advisory (GHSA-6q7j-xr26-3h2c) vendor-advisory
VulnCheck Advisory: Scriban 6.6.0 through 7.2.0 Parser Recursion Denial of Service third-party-advisory