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CVE-2026-74794— Scriban before 6.6.0 Denial of Service via Infinite Recursion

Quick assessment

Affected
scriban scriban
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

scriban是scriban组织的一款高性能的文本模板引擎。 scriban 6.6.0之前版本存在资源管理错误漏洞，该漏洞源于对象渲染存在无限递归，当ObjectRecursionLimit属性默认为无限制时，攻击者可向模板上下文提供循环引用对象，导致堆栈空间耗尽并触发不可捕获的StackOverflowException，从而使宿主进程终止。

CVSS 7.5 · High EPSS 0.49% · P40

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 2

VendorProduct Version RangeStatus
scriban scriban < 6.6.0 affected
6.6.0 unaffected
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I. Basic Information for CVE-2026-74794

Vulnerability Information
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Vulnerability Title
Scriban before 6.6.0 Denial of Service via Infinite Recursion
Source: CVE Program / CVE List V5
Vulnerability Description
Scriban before 6.6.0 contains an infinite recursion vulnerability in object rendering when the ObjectRecursionLimit property defaults to unlimited. Attackers can supply circular reference objects to the template context, exhausting stack space and triggering an uncatchable StackOverflowException that terminates the hosting process.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的递归
Source: CVE Program / CVE List V5
Vulnerability Title
scriban 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
scriban是scriban组织的一款高性能的文本模板引擎。 scriban 6.6.0之前版本存在资源管理错误漏洞，该漏洞源于对象渲染存在无限递归，当ObjectRecursionLimit属性默认为无限制时，攻击者可向模板上下文提供循环引用对象，导致堆栈空间耗尽并触发不可捕获的StackOverflowException，从而使宿主进程终止。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
scriban scriban 0 ~ 6.6.0 -

II. Public POCs for CVE-2026-74794

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Reproduction recording is a Pro+ exclusive
Watch the full sandbox build + live exploit recording for this CVE. Limited-time ¥499/mo.
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claude_code · 9839 chars
GitHub 复现环境（可 clone 直接跑）
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-74794

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Vendor Advisories for CVE-2026-74794 (2)

Same Patch Batch · scriban · 2026-08-16 · 15 CVEs total

CVE-2026-73061 9.8 CRITICAL Scriban before 7.2.2 Arbitrary Property Write via TypedObjectAccessor
CVE-2026-74790 9.1 CRITICAL Scriban before 7.0.0 MemberFilter Bypass via TemplateContext Cache
CVE-2026-74784 8.7 HIGH Scriban before 7.2.0 Denial of Service via array.insert_at
CVE-2026-74791 8.6 HIGH Scriban before 7.0.0 Authorization Bypass via Stale Include Cache
CVE-2026-74792 7.5 HIGH Scriban before 7.0.0 Stack Overflow via nested array initializers
CVE-2026-74783 7.5 HIGH Scriban 6.6.0 through 7.2.0 Parser Recursion Denial of Service
CVE-2026-74788 7.5 HIGH Scriban before 7.0.0 Denial of Service via string.pad_left/pad_right
CVE-2026-74795 7.5 HIGH Scriban before 6.6.0 Denial of Service via Uncontrolled Recursion
CVE-2026-74787 7.5 HIGH Scriban before 7.0.0 Uncontrolled Recursion via object.to_json
CVE-2026-74789 7.5 HIGH Scriban before 7.0.0 LoopLimit Bypass via Built-in Operations
CVE-2026-73062 7.5 HIGH Scriban 3.0.0 through 7.2.0 Denial of Service via Array Multiplication
CVE-2026-73060 7.5 HIGH Scriban 3.0.0 through 7.2.5 Denial of Service via ScriptRange.Multiply
CVE-2026-74785 6.5 MEDIUM Scriban before 7.0.0 Denial of Service via Unbounded Resource Consumption
CVE-2026-74786 6.5 MEDIUM Scriban before 7.0.0 Denial of Service via Unbounded Template Output

IV. Related Vulnerabilities

Same product: scriban
Same vendor: scriban
Same weakness: CWE-674

V. Comments for CVE-2026-74794

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