Vulnerability in Scriban
CVE-2026-74794
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (39.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
- Scriban — versions 0, 6.6.0
Weakness classification (CWE)
References
- github.com/scriban/scriban/security/advisories/GHSA-grr9-747v-xvcp (vendor-advisory)
- www.vulncheck.com/advisories/scriban-before-denial-of-service-via-infinite-recu… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-74794?
- CVE-2026-74794 is a high-severity vulnerability in Scriban, classified under Uncontrolled Recursion. CVSS score: 7.5/10. Published 2026-08-16.
- How severe is CVE-2026-74794?
- High severity. CVSS v3 base score is 7.5 out of 10.