CVE-2026-74790

9.3 criticalEPSS 0.5%

Critical (9.3). EPSS 0.5% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

9.3 critical

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

9.1 critical

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

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 40% of CVEs (scores of 2026-10-31)
CWE: CWE-693
Published: 2026-08-16
Modified: 2026-08-31
Record from: the NVD, synced 2026-10-19

References

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

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