CVEvulnerability
CVE-2026-33750
7.5 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-03-27
- Last modified
- 2026-10-26
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-400
Description
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 loop to run indefinitely, making the process hang for seconds and allocate heaps of memory. Versions 5.0.5, 3.0.2, 2.0.3, and 1.1.13 fix the issue. As a workaround, sanitize strings passed to `expand()` to ensure a step value of `0` is not used.
Affected configurations
• juliangruber brace-expansion (< 1.1.13)
• juliangruber brace-expansion (>= 2.0.0 < 2.0.3)
• juliangruber brace-expansion (>= 3.0.0 < 3.0.2)
• juliangruber brace-expansion (>= 5.0.0 < 5.0.5)
Related
Weakness · CWE (1)
- CWE-400 Uncontrolled Resource Consumption weakness
References
- https://github.com/juliangruber/brace-expansion/blob/daa71bcb4a30a2df9bcb7f7b8daaf2ab30e5794a/src/index.ts#L107-L113 Patch
- https://github.com/juliangruber/brace-expansion/blob/daa71bcb4a30a2df9bcb7f7b8daaf2ab30e5794a/src/index.ts#L184 Patch
- https://github.com/juliangruber/brace-expansion/commit/311ac0d54994158c0a384e286a7d6cbb17ee8ed5 Patch
- https://github.com/juliangruber/brace-expansion/commit/7fd684f89fdde3549563d0a6522226a9189472a2 Patch
- https://github.com/juliangruber/brace-expansion/commit/b9cacd9e55e7a1fa588fe4b7bb1159d52f1d902a Patch
- https://github.com/juliangruber/brace-expansion/issues/98 Issue Tracking
- https://github.com/juliangruber/brace-expansion/pull/95 Issue Tracking, Patch
- https://github.com/juliangruber/brace-expansion/pull/96 Issue Tracking, Patch
- https://github.com/juliangruber/brace-expansion/pull/97 Issue Tracking, Patch
- https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-f886-m6hf-6m8v Mitigation, Vendor Advisory