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CVE-2017-16119

22
FAUCET Score

CVE-2017-16119 is a Regular Expression Denial of Service (ReDoS) vulnerability affecting the 'fresh' module used by the Express.js framework. An attacker can trigger a denial of service by providing specially crafted input, blocking the event loop. With a CVSS score of 7.5 (High), this vulnerability is remotely exploitable with low attack complexity, leading to a high impact on availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.5.2CPE matchmatch criteria
cpe:2.3:a:fresh_project:fresh:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.58%
Probability of exploitation in next 30 days
EPSS Percentile
73.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0158 is in the 55th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

npmpatch availablevia ghsa
Product: freshFixed in: 0.5.2

Vendor Advisories (2)

npmGHSA-9qj9-36jm-prpvhigh

Regular Expression Denial of Service in fresh

Jul 24, 2018
redhatCVE-2017-16119Moderate

nodejs-fresh: Regular expression denial of service when parsing crafted user input

Jun 7, 2018

References

nodesecurity.io / advisories/526
Third Party Advisory