Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Scriban versions before 7.0.0, and Scriban.Signed before 7.0.0, are vulnerable because the string.pad_left and string.pad_right template functions do not validate the width parameter. A remote, unauthenticated attacker who can supply a template to an application that renders untrusted Scriban input can send a short template that forces a very large memory allocation, which can crash the process with an out-of-memory error. Upgrade to Scriban or Scriban.Signed 7.0.0 or later. Until then, avoid rendering untrusted templates.
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 0.0049, the 42nd 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