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CVE-2026-74790— Scriban before 7.0.0 MemberFilter Bypass via TemplateContext Cache

CVSS 9.1 · Critical

Possible ATT&CK Techniques 1AI

T1552.003 · Shell History

Affected Version Matrix 2

VendorProductVersion RangeStatus
scribanscriban< 7.0.0affected
7.0.0unaffected
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I. Basic Information for CVE-2026-74790

Vulnerability Information
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Vulnerability Title
Scriban before 7.0.0 MemberFilter Bypass via TemplateContext Cache
Source: CVE Program / CVE List V5
Vulnerability Description
Scriban before 7.0.0 caches TypedObjectAccessor by Type only without considering MemberFilter changes, allowing reused TemplateContext instances to expose members that should be hidden. Attackers can access filtered properties and fields by reusing a TemplateContext after tightening its MemberFilter, bypassing sandbox policies across requests or tenants.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
保护机制失效
Source: CVE Program / CVE List V5

Affected Products

VendorProductAffected VersionsCPESubscribe
scribanscriban 0 ~ 7.0.0 -

II. Public POCs for CVE-2026-74790

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 8858 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
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III. Intelligence Information for CVE-2026-74790

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Vendor Advisories for CVE-2026-74790 (2)

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

CVE-2026-730619.8 CRITICALScriban before 7.2.2 Arbitrary Property Write via TypedObjectAccessor
CVE-2026-747848.7 HIGHScriban before 7.2.0 Denial of Service via array.insert_at
CVE-2026-747918.6 HIGHScriban before 7.0.0 Authorization Bypass via Stale Include Cache
CVE-2026-747927.5 HIGHScriban before 7.0.0 Stack Overflow via nested array initializers
CVE-2026-747837.5 HIGHScriban 6.6.0 through 7.2.0 Parser Recursion Denial of Service
CVE-2026-747887.5 HIGHScriban before 7.0.0 Denial of Service via string.pad_left/pad_right
CVE-2026-747957.5 HIGHScriban before 6.6.0 Denial of Service via Uncontrolled Recursion
CVE-2026-747877.5 HIGHScriban before 7.0.0 Uncontrolled Recursion via object.to_json
CVE-2026-747947.5 HIGHScriban before 6.6.0 Denial of Service via Infinite Recursion
CVE-2026-747897.5 HIGHScriban before 7.0.0 LoopLimit Bypass via Built-in Operations
CVE-2026-730627.5 HIGHScriban 3.0.0 through 7.2.0 Denial of Service via Array Multiplication
CVE-2026-730607.5 HIGHScriban 3.0.0 through 7.2.5 Denial of Service via ScriptRange.Multiply
CVE-2026-747856.5 MEDIUMScriban before 7.0.0 Denial of Service via Unbounded Resource Consumption
CVE-2026-747866.5 MEDIUMScriban before 7.0.0 Denial of Service via Unbounded Template Output

IV. Related Vulnerabilities

Same product: scriban
Same vendor: scriban
Same weakness: CWE-693

V. Comments for CVE-2026-74790

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