VYPR
High severityNVD Advisory· Published Jun 30, 2026· Updated Jul 8, 2026

CVE-2026-13149

CVE-2026-13149

Description

brace-expansion through 5.0.6 is vulnerable to denial of service. The expand() function exhibits exponential-time complexity in the number of consecutive non-expanding '{}' brace groups. An attacker who passes a crafted string to expand(), directly or transitively, can cause significant CPU consumption and event-loop blocking. The max option does not mitigate this, as it bounds the output size rather than the recursion work.

Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
brace-expansionnpm
>= 3.0.0, < 5.0.75.0.7
brace-expansionnpm
< 1.1.161.1.16
brace-expansionnpm
>= 2.0.0, < 2.1.22.1.2

Affected products

138

Patches

Vulnerability mechanics

References

12

News mentions

0

No linked articles in our index yet.

CVE-2026-13149 · High · VYPR