# CVE-2026-69152: brace-expansion: DoS via unbounded intermediate arrays, bypassing the CVE-2026-14257 mitigation

> CVE-2026-69152: brace-expansion: DoS via unbounded intermediate arrays, bypassing the CVE-2026-14257 mitigation. CVSS 7.5 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-69152
Last updated: 2026-10-23T21:10:00Z

- Published: 2026-08-03 16:33 UTC · Updated: 2026-10-23 21:10 UTC · Assigner: GitHub\_M
- CVSS: 7.5 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS: 0.65%, 51th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-400, CWE-770

## Description

The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to 1.1.18, 2.1.4, 3.0.6, and 5.0.9, expand() does not apply maxLength while constructing comma-alternative intermediate arrays or padded sequences, allowing attacker-controlled input to exhaust memory or block the event loop. The fix for CVE-2026-14257 is bypassed by the vulnerability. This issue is fixed in versions 1.1.18, 2.1.4, 3.0.6, and 5.0.9.

## 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-2026-69152)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-69152)
- [https://github.com/juliangruber/brace-expansion/commit/139d015104e71433ad52a41d19467c48ecbb2c7d](https://github.com/juliangruber/brace-expansion/commit/139d015104e71433ad52a41d19467c48ecbb2c7d)
- [https://github.com/juliangruber/brace-expansion/commit/1e30c930238d7162802d88a94189182def178dac](https://github.com/juliangruber/brace-expansion/commit/1e30c930238d7162802d88a94189182def178dac)
- [https://github.com/juliangruber/brace-expansion/commit/688a99eeaab02627c2b89ba8ba4821fecfa659cf](https://github.com/juliangruber/brace-expansion/commit/688a99eeaab02627c2b89ba8ba4821fecfa659cf)
- [https://github.com/juliangruber/brace-expansion/commit/cb4b9e47cc2ec777c14b2b4492fb431a56f6a031](https://github.com/juliangruber/brace-expansion/commit/cb4b9e47cc2ec777c14b2b4492fb431a56f6a031)
- [https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-rgw5-rvv9-x895](https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-rgw5-rvv9-x895)

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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-2026-69152 · Markdown: https://rewindex.com/cve/CVE-2026-69152.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-69152 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:05:22.077Z