CVE-2026-69152brace-expansion: DoS via unbounded intermediate arrays, bypassing the CVE-2026-14257 mitigation
Updated under an hour ago ()
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It affects juliangruber brace-expansion and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-400, CWE-770
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Analyzed
- Record last updated
- Aug 3, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
juliangruber brace-expansion juliangruber:brace_expansion (from the name) | before 1.1.18; from 2.0.0, < 2.1.4; from 3.0.0, < 3.0.6; from 4.0.0, < 5.0.9 | CNA record |
juliangruber brace-expansion juliangruber:brace-expansion | before 1.1.18; from 2.0.0 before 2.1.4; from 3.0.0 before 3.0.6; from 4.0.0 before 5.0.9 | NVD |
References
- https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-rgw5-rvv9-x895x-refsource-confirm, exploit, mitigation, vendor-advisory
- https://github.com/juliangruber/brace-expansion/commit/139d015104e71433ad52a41d19467c48ecbb2c7dx-refsource-misc, patch
- https://github.com/juliangruber/brace-expansion/commit/1e30c930238d7162802d88a94189182def178dacx-refsource-misc, patch
- https://github.com/juliangruber/brace-expansion/commit/688a99eeaab02627c2b89ba8ba4821fecfa659cfx-refsource-misc, patch
- https://github.com/juliangruber/brace-expansion/commit/cb4b9e47cc2ec777c14b2b4492fb431a56f6a031x-refsource-misc, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.