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EUVD-2026-181441

fkie_cve-2016-10539

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.

GHSA-7mc5-chhp-fmc3 — Regular Expression Denial of Service in negotiator

Affected: npm: negotiator

Affected versions of `negotiator` are vulnerable to regular expression denial of service attacks, which trigger upon parsing a specially crafted `Accept-Language` header value.

## Recommendation

Update to version 0.6.1 or later.

gsd-2016-10539

UBUNTU-CVE-2016-10539

Affected: Ubuntu:16.04:LTS: node-negotiator, Ubuntu:18.04:LTS: node-negotiator, Ubuntu:20.04:LTS: node-negotiator