Vulnerability DatabaseCVE-2026-124439
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CVE-2026-124439
Published:November 08, 2026
Updated:November 09, 2026
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.
Affected Packages
Scriban.Signed (DOT_NET):
Affected version(s) >=7.0.0.0 <7.5.3 || >=3.0.0.0 <7.5.3 || >=4.0.0.0 <7.5.3 || >=6.0.0.0 <7.5.3 || >=2.1.0.0 <7.5.3 || >=5.0.0.0 <7.5.3
Fix Suggestion:
Update to version 7.5.3
Scriban (DOT_NET):
Affected version(s) >=1.0.0.0 <7.5.3 || >=7.0.0.0 <7.5.3 || >=0.1.0.0 <7.5.3 || >=3.0.0.0 <7.5.3 || >=4.0.0.0 <7.5.3 || >=2.0.0.0 <7.5.3 || >=6.0.0.0 <7.5.3 || >=5.0.0.0 <7.5.3
Fix Suggestion:
Update to version 7.5.3
https://github.com/scriban/scriban.git (GITHUB):
Affected version(s) >=v0.1.0 <7.5.3 || >=v1.0.0-beta-001 <7.5.3 || >=v1.0.0 <7.5.3 || >=v2.0.0-alpha-001 <7.5.3 || >=v2.0.0 <7.5.3 || >=2.1.0 <7.5.3 || >=3.0.0-alpha.1 <7.5.3 || >=3.0.0 <7.5.3 || >=4.0.0 <7.5.3 || >=5.0.0 <7.5.3 || >=6.0.0 <7.5.3 || >=7.0.0 <7.5.3
Fix Suggestion:
Update to version 7.5.3
scriban.signed (NUGET):
Affected version(s) >=1.0.0 <7.5.3 || >=7.0.0 <7.5.3 || >=3.0.0 <7.5.3 || >=4.0.0 <7.5.3 || >=2.0.0 <7.5.3 || >=0.9.0 <7.5.3 || >=2.0.0-alpha-001 <7.5.3 || >=6.0.0 <7.5.3 || >=1.0.0-beta-001 <7.5.3 || >=3.0.0-alpha.1 <7.5.3 || >=5.0.0 <7.5.3
Fix Suggestion:
Update to version 7.5.3
scriban (NUGET):
Affected version(s) >=1.0.0 <7.5.3 || >=7.0.0 <7.5.3 || >=0.1.0 <7.5.3 || >=3.0.0 <7.5.3 || >=4.0.0 <7.5.3 || >=2.0.0 <7.5.3 || >=2.0.0-alpha-001 <7.5.3 || >=6.0.0 <7.5.3 || >=1.0.0-beta-001 <7.5.3 || >=3.0.0-alpha.1 <7.5.3 || >=5.0.0 <7.5.3
Fix Suggestion:
Update to version 7.5.3
Related Resources (4)
https://www.vulncheck.com/advisories/scriban-before-7.5.3-denial-of-service-via-uncatchable-stackoverflowexception
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/124xxx/CVE-2026-124439.json
https://github.com/scriban/scriban/security/advisories/GHSA-mvmw-9jxc-7pr2
https://nvd.nist.gov/vuln/detail/CVE-2026-124439
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Uncontrolled Recursion
CWE-674