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High

Denial-of-Service Extended Event Loop Blocking in qs

  • Disclosed: 09.10.2018
  • Updated: 11.10.2026 10:22

Versions prior to 1.0.0 of qs are affected by a denial of service vulnerability that results from excessive recursion in parsing a deeply nested JSON string.

Recommendation

Update to version 1.0.0 or later

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
npm package qs < 1.0.0 1.0.0

References

CVSS score -
Weakness (CWE)
CWE-400
Platform
npm
Package
qs
Disclosed
09.10.2018
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-f9cm-p3w6-xvr3 - CC BY 4.0

Vulnerability history: qs

All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (9) in the archive
Total entries
9
First → latest
10.2017 09.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • High 4
  • Medium 4
  • Low 1

Disclosures per year

Severity:
  1. qs vulnerable to Prototype Pollution
    High · 7.5 CVE-2022-24999 >= 6.10.0, < 6.10.3, >= 6.9.0, < 6.9.7, >= 6.8.0, < 6.8.3, >= 6.7.0, < 6.7.3, >= 6.6.0, < 6.6.1, >= 6.5.0, < 6.5.3, >= 6.4.0, < 6.4.1, >= 6.3.0, < 6.3.3, < 6.2.4 6.10.3, 6.9.7, 6.8.3, 6.7.3, 6.6.1, 6.5.3, 6.4.1, 6.3.3, 6.2.4
  2. Prototype Pollution Protection Bypass in qs
    High · 7.5 CVE-2017-1000048 < 6.0.4, >= 6.1.0, < 6.1.2, >= 6.2.0, < 6.2.3, >= 6.3.0, < 6.3.2 6.0.4, 6.1.2, 6.2.3, 6.3.2
  3. Denial-of-Service Extended Event Loop Blocking in qs this entry
    High CVE-2014-10064 < 1.0.0 1.0.0
  4. Denial-of-Service Memory Exhaustion in qs
    High CVE-2014-7191 < 1.0.0 1.0.0

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