braces vulnerable to stack-exhaustion denial of service through deeply nested patterns
Published Sep 18, 2026 · Updated Nov 3, 2026
Original summary
Normalized public record · Updated Nov 3, 2026
braces vulnerable to stack-exhaustion denial of service through deeply nested patterns
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
braces through 3.0.3 contains a stack overflow vulnerability in the recursive AST walkers that lack depth guards. Attackers can supply deeply nested brace patterns under the character limit to exhaust the call stack and terminate the Node.js process with an uncaught RangeError.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- MEDIUM
- Confidence
- Not available
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- GitHub advisory ↗
- Source repository ↗
- Source repository ↗
- Source repository ↗
- Source repository ↗
- VulnCheck Advisory: braces through 3.0.3 Stack Overflow via Deeply Nested Patterns ↗
- Source repository ↗
Record history
Published Sep 18, 2026 · Last refreshed Nov 3, 2026