braces through 3.0.3 Stack Overflow via Deeply Nested Patterns
Priority MEDIUM 45CWE-674Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-674.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00775 55th percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| micromatch | braces | up to 3.0.3 | — | No fix listed | CNA |
- braces Vendormicromatch Affected up to 3.0.3 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Hardened Images | Affected | No fix planned: Will not fix |
Not affected: 1 product
- Red Hat Hardened Images
Timeline
- 2026-10-02 Threatist record created from CVE-2026-93687
- 2026-10-03 Alias added: GHSA-vfj7-8cjw-p6xm
- 2026-10-15 CISA SSVC decision points changed
- 2026-10-15 Priority changed: HIGH → MEDIUM
- 2026-10-23 Advisory GHSA-vfj7-8cjw-p6xm withdrawn
References
More micromatch vulnerabilities
- TI-2025-19206 An issue in parse-git-config v.3.0.0 allows an attacker to obtain sensitive information via the expandKeys function CVSS 3.1HIGH 7.5
- TI-2026-76508 ReDoS in Picomatch via single-branch repeated extglob patterns CVSS 4.0HIGH 8.7
- TI-2024-03788 Memory Exhaustion in braces CVSS 3.1HIGH 7.5
- TI-2026-26051 Picomatch has a ReDoS vulnerability via extglob quantifiers CVSS 3.1HIGH 7.5
- TI-2025-35514 toggle-array is a package designed to enables a property on the object at the specified… CVSS 3.1HIGH 7.5
- TI-2024-03787 Regular Expression Denial of Service in micromatch CVSS 3.1MEDIUM 5.3
Sources
- CVE-2026-93687 · CVE Program
- CVE-2026-93687 · NVD
- FIRST EPSS
- GHSA-vfj7-8cjw-p6xm · GitHub Advisory Database · CC BY 4.0
- CVE-2026-93687 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences