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.
| Vendor | Product | Versions |
|---|---|---|
| — | brace-expansion | < 1.1.18, >= 2.0.0, < 2.1.4, >= 3.0.0, < 3.0.6, >= 4.0.0, < 5.0.9 |
Downstream vendors/products affected by this vulnerability
| Vendor | Product | Source | Confidence |
|---|---|---|---|
| atlassian | crucible | cert_advisory | 90% |
| atlassian | bamboo | cert_advisory | 90% |
| atlassian | confluence | cert_advisory | 90% |
| atlassian | jira | cert_advisory | 90% |
| atlassian | fisheye | cert_advisory | 90% |
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