CVE-2017-16118

Name: CVE-2017-16118
Creator: NVD / NIST
Published: 2018-06-07T02:29:02.94+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.95%

Last modified Jun 17, 2026

CVE-2017-16118 is a vulnerability of currently unknown severity. The forwarded module is used by the Express.js framework to handle the X-Forwarded-For header. It is vulnerable to a regular expression denial of service when it's passed specially crafted input to parse. EPSS estimates a 1.95% chance of exploitation in the next 30 days.

Description

The forwarded module is used by the Express.js framework to handle the X-Forwarded-For header. It is vulnerable to a regular expression denial of service when it's passed specially crafted input to parse. This causes the event loop to be blocked causing a denial of service condition.

Metrics

EPSS Probability

1.95%

77.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Forwarded Project	Forwarded	< 0.1.2

References

http://www.securityfocus.com/bid/104427Third Party Advisory, VDB Entry
https://nodesecurity.io/advisories/527Third Party Advisory
http://www.securityfocus.com/bid/104427Third Party Advisory, VDB Entry
https://nodesecurity.io/advisories/527Third Party Advisory

Timeline

Published: Jun 7, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-16118?

How severe is CVE-2017-16118?

Severity scoring for CVE-2017-16118 is pending analysis. The EPSS model estimates a 1.95% probability of exploitation in the next 30 days.

How do I fix CVE-2017-16118?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-16118?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST