# CVE-2026-13149

> CVE-2026-13149. CVSS 7.7 (CVSS 4.0).

Canonical: https://rewindex.com/cve/CVE-2026-13149
Last updated: 2026-10-25T21:10:00Z

- Published: 2026-06-30 08:30 UTC · Updated: 2026-10-25 21:10 UTC · Assigner: seal
- CVSS: 7.7 (CVSS 4.0) · Severity: High
- EPSS: 0.36%, 30th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-400, CWE-407

## Description

brace-expansion through 5.0.6 is vulnerable to denial of service. The expand() function exhibits exponential-time complexity in the number of consecutive non-expanding '{}' brace groups. An attacker who passes a crafted string to expand(), directly or transitively, can cause significant CPU consumption and event-loop blocking. The max option does not mitigate this, as it bounds the output size rather than the recursion work.

## Affected vendors and products

- juliangruber: brace-expansion

## Tracked companies

- [Bitbucket](https://rewindex.com/company/bitbucket.md)
- [Jira](https://rewindex.com/company/jira.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-13149)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-13149)
- [https://github.com/juliangruber/brace-expansion/commit/c7e33ec13ac1a684c116720843ce24e208611754](https://github.com/juliangruber/brace-expansion/commit/c7e33ec13ac1a684c116720843ce24e208611754)
- [https://www.npmjs.com/package/brace-expansion](https://www.npmjs.com/package/brace-expansion)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-13149 · Markdown: https://rewindex.com/cve/CVE-2026-13149.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-13149 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:08:58.250Z