CVEvulnerability
CVE-2026-13311
8.7 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-06-25
- Last modified
- 2026-10-25
- Assigner
- 7ffcee3d-2c14-4c3e-b844-86c6a321a158
- CVSS 4.0 (7ffcee3d-2c14-4c3e-b844-86c6a321a158)
- 8.7 HIGH — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 (7ffcee3d-2c14-4c3e-b844-86c6a321a158)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-407
Description
shell-quote prior to 1.8.5 finalizes parsed tokens in parse() using Array.prototype.concat as a reduce accumulator, which reallocates and copies the entire growing array on every iteration. As a result parse() runs in O(n^2) time relative to the number of input tokens. An attacker who can supply an attacker-controlled string to any code path that calls parse() (no shell metacharacters are required; plain space-separated words suffice) can block the single-threaded Node.js event loop for an extended period with a small input, resulting in a denial of service. There is no code execution or data disclosure; impact is to availability only. Fixed in 1.8.5.
Affected configurations
• shell-quote project shell-quote (< 1.9.0)
Related
Weakness · CWE (1)
- CWE-407 Inefficient Algorithmic Complexity weakness