# CVE-2026-124438: Scriban before 7.5.2 Delegate Target Exposure via array.map Member Access

Status: published. Published: 2026-11-08. Updated: 2026-11-12.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- scriban / scriban (Scriban): ≥ 0; < 7.5.2 (affected, semver); 7.5.2 (unaffected, semver). Source: CNA: VulnCheck
- scriban / scriban (Scriban.Signed): ≥ 0; < 7.5.2 (affected, semver); 7.5.2 (unaffected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 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; source: CNA: VulnCheck

- CVSS 3.1: 7.4 (high); CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N; source: CNA: VulnCheck

- CVSS 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; source: NVD: disclosure@vulncheck.com

- CVSS 3.1: 7.4 (high); CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N; source: NVD: disclosure@vulncheck.com

- CISA KEV: No listing in collected sources

- EPSS: 0.36% as of 2026-11-12; percentile 30.64%

- SSVC: exploitation poc; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-200

## Exploit evidence

- exploit: https://github.com/scriban/scriban/security/advisories/GHSA-hvr4-4p37-494f (ADP: CISA-ADP)

## References

- https://github.com/scriban/scriban/security/advisories/GHSA-hvr4-4p37-494f (CNA: VulnCheck; vendor-advisory)

- https://www.vulncheck.com/advisories/scriban-before-7.5.2-delegate-target-exposure-via-array-map-member-access (CNA: VulnCheck; third-party-advisory)

- https://github.com/scriban/scriban/security/advisories/GHSA-hvr4-4p37-494f (ADP: CISA-ADP; exploit)

- https://github.com/scriban/scriban/security/advisories/GHSA-hvr4-4p37-494f (disclosure@vulncheck.com)

- https://www.vulncheck.com/advisories/scriban-before-7.5.2-delegate-target-exposure-via-array-map-member-access (disclosure@vulncheck.com)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-124438; retrieved 2026-11-12; source updated 2026-11-12

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-124438; retrieved 2026-11-08; source updated 2026-11-08

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-124438; retrieved 2026-11-12; source updated Not reported

Revision: c0712967ea205a135c8bc62202169baaf7913c9ab598b4da4c6e611e6221ea16

Canonical: https://y2.dev/cve/CVE-2026-124438

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Collected public records only. Check source status for coverage and freshness.