Resource exhaustion in Juliangruber Brace-expansion
CVE-2026-33750
The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to versions 5.0.5, 3.0.2, 2.0.3, and 1.1.13, a brace pattern with a zero step value (e.g., `{1..2..0}`) causes the sequence generation loo…
Vulnerability class: DoS (Denial of Service)
EPSS: 0.004 (34.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
Affected products
- Juliangruber Brace-expansion — versions >= 4.0.0, < 5.0.5, >= 3.0.0, < 3.0.2, >= 2.0.0, < 2.0.3
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-33750?
- CVE-2026-33750 is a medium-severity vulnerability in Juliangruber Brace-expansion, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2026-03-27.
- How severe is CVE-2026-33750?
- Medium severity. CVSS v3 base score is 6.5 out of 10.