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.
Published 2018-05-31 20:29:01
Updated 2019-10-09 23:16:44
Source HackerOne
View at NVD,   CVE.org
Vulnerability category: Input validationDenial of service

Products affected by CVE-2016-10539

Exploit prediction scoring system (EPSS) score for CVE-2016-10539

0.33%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 53 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-10539

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.0
MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
NIST
7.5
HIGH CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.9
3.6
NIST

CWE ids for CVE-2016-10539

  • The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
    Assigned by: nvd@nist.gov (Primary)
  • The product does not properly control the allocation and maintenance of a limited resource.
    Assigned by: support@hackerone.com (Secondary)

References for CVE-2016-10539

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