CVE-2026-74789 (GCVE-0-2026-74789)

Vulnerability from cvelistv5 – Published: 2026-08-16 13:14 – Updated: 2026-08-17 16:04
VLAI
Title
Scriban before 7.0.0 LoopLimit Bypass via Built-in Operations
Summary
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.
Severity
8.7 (High)
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
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-17 15:44 UTC
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6106 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
scriban scriban Affected: 0 , < 7.0.0 (semver)
Unaffected: 7.0.0 (semver)
guessed Create a notification for this product.
Date Public
2026-03-22 00:00
Credits
Zwique
Show details on NVD website
To clipboard 

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