CVE-2026-45149 - brace-expansion: Large numeric range defeats documented `max` DoS protection

CVE-2026-45149 - brace-expansion: Large numeric range defeats documented `max` DoS protection

https://cvefeed.io/rssfeed/latest.atom / Fri, 05/29/2026 - 23:26
CVE ID :CVE-2026-45149
Published : May 29, 2026, 8:16 p.m. | 45 minutes ago
Description :The brace-expansion library generates arbitrary strings containing a common prefix and suffix. From 5.0.0 to before 5.0.6, the max option was being applied too late. When expanding a single large numeric range like {1..10000000}, the sequence generation loop generates all 10 million intermediate elements before the max limit is applied With max=10, the output is correctly limited to 10 items, but the process still allocates ~505 MB and spends ~800ms building the full intermediate array. This vulnerability is fixed in 5.0.6.
Severity: 6.5 | MEDIUM
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