CVE-2026-74789

Scriban before 7.0.0 (affected

CVE-2026-74789

Scriban before 7.0.0 affected = 6.6.0 applies its LoopLimit constraint only to script loop statements and not to expensive iteration performed inside built-in operators and functions. As a result, a single expression such as 1..1000000 | array.size — or a memory-amplification expression such as '...

Scriban: array.insert_at index parameter DoS bypasses LoopLimit and LimitToString

Summary ArrayFunctions.InsertAt in Scriban allocates index - list.Count null entries in a tight C for loop with no bound on index. The function is exposed to template authors as array.insertat, and the fill loop ignores every existing safety control: LoopLimit, LimitToString, ObjectRecursionLimit...