Review reviewHigh
CVE-2026-13311
ljharb shell-quote
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 da...
- CVSS
- 8.7
- EPSS
- 0.36% 28.8% percentile
- CISA KEV
- Not listed
- Published
- 2026.06.25