Vulnerability · Published Aug 16, 2026 · Assigned by VulnCheck

CVE-2026-74794Scriban before 6.6.0 Denial of Service via Infinite Recursion

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 0.5% (higher than 42% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.5%top 57.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Scriban before 6.6.0 contains an infinite recursion vulnerability in object rendering when the ObjectRecursionLimit property defaults to unlimited. Attackers can supply circular reference objects to the template context, exhausting stack space and triggering an uncatchable StackOverflowException that terminates the hosting process.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
NuGet	scriban	6.6.0	GHSA-grr9-747v-xvcp
NuGet	scriban.signed	6.6.0	GHSA-grr9-747v-xvcp

Affected products (as reported)

Vendor	Product	Versions
scriban	scriban	0 – before 6.6.0

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-grr9-747v-xvcp) vendor-advisory
VulnCheck Advisory: Scriban before 6.6.0 Denial of Service via Infinite Recursion third-party-advisory