CVE-2016-10703: A regular expression Denial of Service (DoS) vulnerability in the file lib/ecstatic.js of the ecstatic npm pac

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HIGH 7.5REMOTEUPGRADE

CVE-2016-10703 is a high-severity flaw (CVSS 7.5) affecting ecstatic. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A regular expression Denial of Service (DoS) vulnerability in the file lib/ecstatic.js of the ecstatic npm package, before version 2.0.0, allows a remote attacker to overload and crash a server by passing a maliciously crafted string.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.6% (top 15%)
CISA exploited list	No
Weakness	CWE-20
Published	2017-12-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ecstatic project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-12-14 19:29 UTCPublished CVE record published
2026-06-17 00:40 UTCUpdated Record last modified

ecstatic project ecstatic UPGRADE

Affected: < 2.0.0

Fixed in: 2.0.0

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls ecstatic

2. UPGRADE to 2.0.0

npm install ecstatic@">=2.0.0"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2016-10703?

ecstatic: upgrade to 2.0.0. Exact commands for each OS are on this page.

Is CVE-2016-10703 being exploited?

CVE-2016-10703 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2016-10703 affect?

CVE-2016-10703 affects ecstatic. Severity is high (CVSS 7.5). A regular expression Denial of Service (DoS) vulnerability in the file lib/ecstatic.js of the ecstatic npm package, before version 2.0.0, allows a remote attacker to overload and crash a server by passing a maliciously crafted string.

How urgent is CVE-2016-10703?

Priority 58/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

npm packages vulnerabilities

Related CVEs

CVE-2019-10775 HIGH 7.5 MITIGATE ecstatic have a denial of service vulnerability
CVE-2015-9242 HIGH 7.5 UPGRADE Certain input strings when passed to new Date() or Date.parse() in ecstatic node module before 1.4.0 will caus

References

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