High severity · published Aug 3, 2026
CVE-2026-69152
brace-expansion: DoS via unbounded intermediate arrays, bypassing the CVE-2026-14257 mitigation
7.5
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BR
brace-expansion · juliangruber
< 1.1.18; >= 2.0.0, < 2.1.4; >= 3.0.0, < 3.0.6; >= 4.0.0, < 5.0.9 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-69152
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-69152
Patch
https://github.com/juliangruber/brace-expansion/commit/139d015104e71433ad52a41d19467c48ecbb2c7d
Patch
https://github.com/juliangruber/brace-expansion/commit/1e30c930238d7162802d88a94189182def178dac
Patch
https://github.com/juliangruber/brace-expansion/commit/688a99eeaab02627c2b89ba8ba4821fecfa659cf
Patch
https://github.com/juliangruber/brace-expansion/commit/cb4b9e47cc2ec777c14b2b4492fb431a56f6a031
Exploit
https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-rgw5-rvv9-x895
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CVE-2026-102276
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CVE-2026-14257
brace-expansion DoS via unbounded expansion length causing an out-of-memory process crash
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CVE-2026-45149
brace-expansion: Large numeric range defeats documented `max` DoS protection