CVE-2026-124438
Scriban before 7.5.2 Delegate Target Exposure via array.map Member Access
Scriban before 7.5.2 contains an information disclosure and object manipulation vulnerability that allows template authors to access .NET internals of function values through reflection member accessors. Attackers can use array.map to read Target, Method, or ReturnType on imported delegates, exposing and overwriting service properties, captured closure secrets, and assembly paths.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| scriban scriban Scriban
nuget |
≥ 0; < 7.5.2 (affected, semver) 7.5.2 (unaffected, semver) Other versions: unaffected |
CNA: VulnCheck |
| scriban scriban Scriban.Signed
nuget |
≥ 0; < 7.5.2 (affected, semver) 7.5.2 (unaffected, semver) Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 9.1 critical |
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 7.4 high |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | CNA: VulnCheck |
| 4.0 / 9.1 critical |
CVSS:4.0/AV:N/AC:H/AT:P/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 | NVD: [email protected] |
| 3.1 / 7.4 high |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | NVD: [email protected] |
Exploit evidence
- https://github.com/scriban/scriban/security/advisories/GHSA-hvr4-4p37-494f
exploit · ADP: CISA-ADP
References
- https://github.com/scriban/scriban/security/advisories/GHSA-hvr4-4p37-494fCNA: VulnCheck · vendor-advisory
- https://www.vulncheck.com/advisories/scriban-before-7.5.2-delegate-target-exposure-via-array-map-member-accessCNA: VulnCheck · third-party-advisory
- https://github.com/scriban/scriban/security/advisories/GHSA-hvr4-4p37-494fADP: CISA-ADP · exploit
- https://github.com/scriban/scriban/security/advisories/GHSA-hvr4-4p37-494f[email protected]
- https://www.vulncheck.com/advisories/scriban-before-7.5.2-delegate-target-exposure-via-array-map-member-access[email protected]
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