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CVE-2026-14257 is a memory-exhaustion vulnerability in brace-expansion through version 5.0.7. The expand() function limits the number of expansion results using the max option, which defaults to 100,000, but does not bound each result's string length. Crafted sequences of brace groups can remain below the result-count limit while increasing individual result lengths and aggregate memory consumption, ultimately causing a fatal, uncatchable Node.js out-of-memory error. Applications that pass attacker-influenced strings to expand(), directly or through minimatch or glob brace-pattern processing, may be vulnerable. Approximately 7.5 KB of crafted input can crash a default Node.js process.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
39 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An earlier vulnerability in brace-expansion whose fix is bypassed by CVE-2026-69152. The content does not independently describe its technical details, affected versions, or exploitation status.
A denial-of-service vulnerability in brace-expansion caused by memory exhaustion in the expand() function.
A separately referenced brace-expansion recursion vulnerability involving chained groups and recursion on the expansion tail.
A previously mitigated brace-expansion recursion vulnerability involving chained sequential expansion groups; it is mentioned solely as background to distinguish the remaining nested-brace recursion flaw.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.