CVE-2026-74789 — Scriban before 7.0.0 LoopLimit Bypass via Built-in Operations
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 f…
Published: 2026-08-16 · CVSS: 8.7 · CVSS 4.0
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 {{ 'A' * 200000000 }} — can force large CPU or memory consumption even when LoopLimit is configured to a very small value, resulting in denial of service. Applications that render attacker-controlled templates and rely on LoopLimit for safe execution are affected.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7