CVE-2026-74784
Received Received - Intake

Scriban Array Insert Denial of Service

Publication date: 2026-08-16

Last updated on: 2026-08-16

Assigner: VulnCheck

Description
Scriban before 7.2.0 contains a denial of service vulnerability in the array.insert_at function that allocates unbounded null entries without respecting LoopLimit or LimitToString constraints. Attackers can supply a large index parameter to trigger OutOfMemoryException and crash the host process in under a second.

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Meta Information

Published
2026-08-16
Last Modified
2026-08-16
Generated
2026-08-16
AI Q&A
2026-08-16
EPSS Evaluated
N/A
NVD
CVE-2026-74784
EUVD
EUVD-2026-59950

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
scriban scriban to 7.2.0 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-770 The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

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Executive Summary

CVE-2026-74784 is a denial-of-service vulnerability in Scriban versions before 7.2.0. It exists in the array.insert_at function which allocates unbounded null entries without respecting LoopLimit or LimitToString constraints. Attackers can provide a large index parameter to trigger an OutOfMemoryException, crashing the host process in under a second.

Detection Guidance

Check Scriban version with command: grep -r "Scriban" --include="*.csproj" or check assembly versions. Monitor for OutOfMemoryException crashes in applications using Scriban templates.

Impact Analysis

This vulnerability can cause complete unavailability of systems using affected Scriban versions. If an attacker sends a malicious template with a large index value, the host process will crash due to memory exhaustion. This affects any application that processes user-controlled Scriban templates, including web applications and services.

Compliance Impact

This vulnerability could impact compliance with GDPR and HIPAA by causing system unavailability due to denial-of-service attacks. GDPR requires data processing systems to maintain availability, while HIPAA mandates reliable access to protected health information. A crash from this flaw may violate these requirements.

Mitigation Strategies

Upgrade Scriban to version 7.2.0 or later immediately. If upgrading is not possible, restrict template execution to trusted sources and implement runtime memory limits.

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