Denial of Service in ecstatic
ecstatic, a simple static file server middleware, is vulnerable to denial of service. If a payload with a large number of null bytes (%00) is provided by an attacker it can crash ecstatic by running it out of memory.
Results from the original advisory
A payload of 22kB caused a lag of 1 second,
A payload of 35kB caused a lag of 3 seconds,
A payload of 86kB caused the server to crashRecommendation
Update to version 2.0.0 or later.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | ecstatic | < 2.0.0 | 2.0.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2016-10703
- https://github.com/jfhbrook/node-ecstatic/commit/71ce93988ead4b561a8592168c72143907189f01
- https://github.com/jfhbrook/node-ecstatic/commit/71ce93988ead4b561a8592168c72143907189f01#diff-b2b5a88fb51675f1aa1065c093dce1ee
- https://advisory.checkmarx.net/advisory/CX-2016-4450
- https://github.com/advisories/GHSA-pm9p-9926-w68m
- https://github.com/jfhbrook/node-ecstatic
- https://www.checkmarx.com/advisories/denial-of-service-dos-vulnerability-in-ecstatic-npm-package
- https://www.npmjs.com/advisories/553
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
CWE-400- Platform
- npm
- Package
ecstatic- Disclosed
- 28.12.2017
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-pm9p-9926-w68m - CC BY 4.0
Vulnerability history: ecstatic
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 4
- First → latest
- 12.2017 12.2020
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 3
- Medium 1
Disclosures per year
- 2017: 1
- 2018: 1
- 2019: 0
- 2020: 2
- 2021: 0
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
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Denial of Service in ecstatic this entry
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