CVE-2026-74790

CRITICAL 9.1

Scriban before 7.0.0 MemberFilter Bypass via TemplateContext Cache

CVSS Score

9.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-693
Vendor	scriban
Product	scriban
Published	Aug 16, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Affected Versions

scriban / scriban

0 < 7.0.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/scriban/scriban/security/advisories/GHSA-5wr9-m6jw-xx44 vulncheck.com: https://www.vulncheck.com/advisories/scriban-before-memberfilter-bypass-via-templatecontext-cache

Credits

🔍 Zwique