CVE-2026-69152highCWE-400CWE-770

CVE-2026-69152: high-severity vulnerability in juliangruber brace-expansion

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

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.5epss 0.6%
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
juliangruber · brace-expansion
Related CVEs — juliangruber brace-expansion

In the same product, most dangerous first.

CVE-2026-14257HIGHbrace-expansion DoS via unbounded expansion length causing an out-of-memory process crashEPSS 0.6%CVE-2025-5889LOWjuliangruber brace-expansion index.js expand redosEPSS 0.6%CVE-2026-102278HIGHbrace-expansion: DoS via uncontrolled recursion on nested brace groups causing stack exhaustionEPSS 0.5%CVE-2026-102276HIGHbrace-expansion: DoS via uncontrolled recursion in parseCommaParts causing stack exhaustionEPSS 0.5%CVE-2026-33750MEDIUMbrace-expansion: Zero-step sequence causes process hang and memory exhaustionEPSS 0.4%CVE-2026-102277MEDIUMbrace-expansion: Quadratic-time expansion of the `{a},b}` rewrite causes CPU denial of serviceEPSS 0.4%