{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-124439", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-11-08T02:13:42.362Z", "datePublished": "2026-11-08T13:15:33.017Z", "dateUpdated": "2026-11-08T13:15:33.017Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-11-08T13:15:33.017Z"}, "datePublic": "2026-10-24T00:00:00.000Z", "title": "Scriban before 7.5.3 Denial of Service via Uncatchable StackOverflowException", "descriptions": [{"lang": "en", "value": "Scriban and Scriban.Signed before 7.5.3 contain uncontrolled recursion flaws in which postfix member, indexer, and call chains bypass ExpressionDepthLimit, array comparison lacks depth and cycle checks, and object.eval bypasses RecursiveLimit. Attackers who can supply templates can trigger an uncatchable StackOverflowException that terminates the host process."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Uncontrolled Recursion", "cweId": "CWE-674", "type": "CWE"}]}], "affected": [{"vendor": "scriban", "product": "scriban", "defaultStatus": "unaffected", "packageURL": "pkg:nuget/Scriban", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThan": "7.5.3"}, {"version": "7.5.3", "status": "unaffected", "versionType": "semver"}]}, {"vendor": "scriban", "product": "scriban", "defaultStatus": "unaffected", "packageURL": "pkg:nuget/Scriban.Signed", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThan": "7.5.3"}, {"version": "7.5.3", "status": "unaffected", "versionType": "semver"}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH"}}], "references": [{"url": "https://github.com/scriban/scriban/security/advisories/GHSA-mvmw-9jxc-7pr2", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-mvmw-9jxc-7pr2)"}, {"name": "VulnCheck Advisory: Scriban before 7.5.3 Denial of Service via Uncatchable StackOverflowException", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/scriban-before-7.5.3-denial-of-service-via-uncatchable-stackoverflowexception"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:nuget/Scriban", "product": "scriban", "vendor": "scriban", "versions": [{"lessThan": "7.5.3", "status": "affected", "version": "0", "versionType": "semver"}, {"status": "unaffected", "version": "7.5.3", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "packageURL": "pkg:nuget/Scriban.Signed", "product": "scriban", "vendor": "scriban", "versions": [{"lessThan": "7.5.3", "status": "affected", "version": "0", "versionType": "semver"}, {"status": "unaffected", "version": "7.5.3", "versionType": "semver"}]}], "source": "disclosure@vulncheck.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Scriban and Scriban.Signed before 7.5.3 contain uncontrolled recursion flaws in which postfix member, indexer, and call chains bypass ExpressionDepthLimit, array comparison lacks depth and cycle checks, and object.eval bypasses RecursiveLimit. Attackers who can supply templates can trigger an uncatchable StackOverflowException that terminates the host process."}], "id": "CVE-2026-124439", "lastModified": "2026-11-08T14:18:10.470", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "disclosure@vulncheck.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}]}, "published": "2026-11-08T14:18:10.470", "references": [{"source": "disclosure@vulncheck.com", "url": "https://github.com/scriban/scriban/security/advisories/GHSA-mvmw-9jxc-7pr2"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/scriban-before-7.5.3-denial-of-service-via-uncatchable-stackoverflowexception"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-674"}], "source": "disclosure@vulncheck.com", "type": "Primary"}]}

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