Scriban versions 6.6.0 through 7.2.0 contain a non-enforcing ExpressionDepthLimit guard that fails to stop recursive descent parsing of deeply nested expressions. Attackers can supply templates with deeply nested parentheses, array initializers, object initializers, or unary operators to trigger an uncatchable StackOverflowException that immediately terminates the host process.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
scriban scriban affected
Version Status Constraints
0 unaffected < 6.6.0

No data.

No data.

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/scriban/scriban/security/advisories/GHSA-6q7j-xr26-3h2c cve-icon cve-icon
https://www.vulncheck.com/advisories/scriban-through-parser-recursion-denial-of-service cve-icon cve-icon
History

Sun, 16 Aug 2026 13:30:00 +0000

Type Values Removed Values Added
Description Scriban versions 6.6.0 through 7.2.0 contain a non-enforcing ExpressionDepthLimit guard that fails to stop recursive descent parsing of deeply nested expressions. Attackers can supply templates with deeply nested parentheses, array initializers, object initializers, or unary operators to trigger an uncatchable StackOverflowException that immediately terminates the host process.
Title Scriban 6.6.0 through 7.2.0 Parser Recursion Denial of Service
Weaknesses CWE-674
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-16T13:14:09.444Z

Reserved: 2026-08-16T12:56:02.576Z

Link: CVE-2026-74783

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-16T14:16:56.133

Modified: 2026-08-16T14:16:56.133

Link: CVE-2026-74783

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-16T14:45:04Z

Weaknesses