Scriban before 7.0.0 Uncontrolled Recursion via object.to_json (CVE-2026-74787) | HOL Guard CVE

High · CVSS 7.5CVE-2026-74787

Scriban before 7.0.0 Uncontrolled Recursion via object.to_json

Answer in brief

CVE-2026-74787 records a High severity (CVSS 7.5) vulnerability in Scriban before 7.0.0 Uncontrolled Recursion via object.to_json. The current sources do not mark it as known exploited. The current feed maps scriban/scriban (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 16, 2026Updated Sep 8, 2026Source checked Sep 30, 2026First seen by HOL Aug 16, 2026Material review Sep 8, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.5
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps scriban/scriban (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
scriban/scribangeneric	>=0 <7.0.0	7.0.0

Recommended response

Check inventory. Check lockfiles and deployed manifests for scriban/scriban.
Review the reported fix. Update scriban/scriban to 7.0.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 16, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 8, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 16, 2026

Sources and claim methodology

Upstream source description

Scriban before 7.0.0 contains an uncontrolled recursion vulnerability in the object.to_json builtin function that lacks depth limits and circular reference detection. Attackers can craft templates with self-referencing objects to trigger unbounded recursion, causing a StackOverflowException that fatally terminates the hosting .NET process.

Quoted source text, attributed separately from HOL analysis.