Resource exhaustion in Expressjs Method-Override
CVE-2017-16136
method-override is a module used by the Express.js framework to let you use HTTP verbs such as PUT or DELETE in places where the client doesn't support it. method-override is vulnerable to a regular expression denial of service vulnerability when specially crafted input is passed in to be parsed via the X-HTTP-Method-Override header.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.012 (65.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Expressjs Method-override
- Hackerone Method-override Node Module — versions <= 1.0.2 || > 2.0.0 < 2.3.10
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support@hackerone.com (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2017-16136?
- CVE-2017-16136 is a high-severity vulnerability in Expressjs Method-Override, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2018-06-07.
- How severe is CVE-2017-16136?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2017-16136 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.