CVE-2016-10539

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

negotiator is an HTTP content negotiator for Node.js and is used by many modules and frameworks including Express and Koa. The header for "Accept-Language", when parsed by negotiator 0.6.0 and earlier is vulnerable to Regular Expression Denial of Service via a specially crafted string.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-400 CWE-20

Affected software

Vendor	Product	Versions
HackerOne	negotiator node module	<= 0.6.0

References

https://nodesecurity.io/advisories/106Third Party Advisory
https://nodesecurity.io/advisories/106Third Party Advisory

Timeline

Published: May 31, 2018
Last modified: Jun 17, 2026
NVD status: Modified

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