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CVE-2026-74785— Scriban before 7.0.0 Denial of Service via Unbounded Resource Consumption

Quick assessment

Affected
scriban scriban
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
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 7.0.0之前版本存在资源管理错误漏洞，该漏洞源于表达式求值过程中存在无界字符串乘法、不受控制的BigInteger移位运算以及通过内置函数中的范围枚举绕过LoopLimit，可能导致攻击者提供模板造成内存不足异常或CPU耗尽。

CVSS 6.5 · Medium EPSS 0.27% · P20

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 2

VendorProduct Version RangeStatus
scriban scriban < 7.0.0 affected
7.0.0 unaffected
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I. Basic Information for CVE-2026-74785

Vulnerability Information
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Vulnerability Title
Scriban before 7.0.0 Denial of Service via Unbounded Resource Consumption
Source: CVE Program / CVE List V5
Vulnerability Description
Scriban before 7.0.0 contains three distinct denial-of-service vulnerabilities in expression evaluation that bypass existing safety controls through unbounded string multiplication, uncontrolled BigInteger shift operations, and LoopLimit bypass via range enumeration in builtin functions. Attackers who can supply templates can cause out-of-memory exceptions or CPU exhaustion, typically terminating the entire host process.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
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 7.0.0之前版本存在资源管理错误漏洞，该漏洞源于表达式求值过程中存在无界字符串乘法、不受控制的BigInteger移位运算以及通过内置函数中的范围枚举绕过LoopLimit，可能导致攻击者提供模板造成内存不足异常或CPU耗尽。
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 ~ 7.0.0 -

II. Public POCs for CVE-2026-74785

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III. Intelligence Information for CVE-2026-74785

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Vendor Advisories for CVE-2026-74785 (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-2026-74794 7.5 HIGH Scriban before 6.6.0 Denial of Service via Infinite Recursion
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-2026-74786 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-400

V. Comments for CVE-2026-74785

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