Security Bulletin: qs parse module DoS vulnerability: arrayLimit bypass via bracket notation allows memory exhaustion (qs < 6.14.1)

Summary An input validation flaw in qs 6.14.1 allows attackers to bypass arrayLimit using bracket notation a=x, leading to unauthenticated HTTP denial-of-service via memory exhaustion. Vulnerability Details CVEID:CVE-2025-15284 DESCRIPTION: Improper Input Validation vulnerability in qs parse...

CVE-2025-15284 arrayLimit bypass in bracket notation allows DoS via memory exhaustion

Improper Input Validation vulnerability in qs parse modules allows HTTP DoS.This issue affects qs: 6.14.1. Summary The arrayLimit option in qs did not enforce limits for bracket notation a=1&a=2, only for indexed notation a0=1. This is a consistency bug; arrayLimit should apply uniformly across a...

CVE-2025-15284 arrayLimit bypass in bracket notation allows DoS via memory exhaustion

Improper Input Validation vulnerability in qs parse modules allows HTTP DoS.This issue affects qs: 6.14.1. Summary The arrayLimit option in qs did not enforce limits for bracket notation a=1&a=2, only for indexed notation a0=1. This is a consistency bug; arrayLimit should apply uniformly across a...

CVE-2025-15284

CVE-2025-15284 is a vulnerability in the qs library (parse modules) where the arrayLimit check does not apply to bracket notation (a[]=...) as in the vulnerable code path (lib/parse.js:159-162). The issue enables potential DoS via memory exhaustion by creating larger-than-expected arrays, though ...