Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Scriban versions before 7.0.0 (both the scriban and Scriban.Signed NuGet packages) allow a template to bypass the LoopLimit setting through built-in operations, such as a range passed to array.size or a large string repetition. An attacker who can submit templates to an application that renders them can force heavy CPU or memory use from a single expression, causing denial of service. Upgrade to version 7.0.0 or later, which is the fixed version listed.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 8.7 | High | 4.0 | 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 | CNA (VulnCheck) |
- CISA KEV Not listed.
- EPSS 0.0060, the 48th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:21 UTC First seen by agentprime
- 31 Oct 2026, 15:21 UTC Confirmed by OSV