CVE-2026-74790 json
Scriban before 7.0.0 MemberFilter Bypass via TemplateContext Cache
published 2026-03-24 7 mo ago modified 2026-08-31 2 mo ago also GHSA-5wr9-m6jw-xx44 , EUVD-2026-59956
- cvss
- 9.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 40%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- nuget scriban 7.0.0
- nuget Scriban.Signed 7.0.0
- scriban scriban 7.0.0
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- total
- Assessed
- 2 mo ago
Exploit prediction
0.47% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/scriban/scriban/security/advisories/GHSA-5wr9-m6jw-xx44 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.3 | 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 |
| CNA | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| CNA | 4.0 | 9.3 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| GitHub | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| nuget | scriban | <7.0.0 |
7.0.0 |
| nuget | Scriban.Signed | <7.0.0 |
7.0.0 |
Affected products
- scriban scriban
Classification
- Weakness
-
- CWE-693 Protection Mechanism Failure
References
-
github.com
/scriban/scriban/security/advisories/GHSA-5wr9-m6jw-xx44
vendor-advisory, exploit, web
-
vulncheck.com
/advisories/scriban-before-memberfilter-bypass-via-templatecontext-cache
third-party-advisory
-
github.com
/scriban/scriban
package
Sources
- CVE List CVE-2026-74790
- GitHub Advisory GHSA-5wr9-m6jw-xx44
- NVD CVE-2026-74790
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.