uws is a WebSocket server library. By sending a 256mb websocket message to a uws server instance with permessage-deflate enabled, there is a possibility used compression will shrink said 256mb down to less than 16mb of websocket payload which passes the length check of 16mb payload. This data will then inflate up to 256mb and crash the node process by exceeding V8's maximum string size. This affects uws >=0.10.0 <=0.10.8.
CVE-2016-10544
This medium-severity CVE scores 5.9 under NVD CVSS v3. EPSS exploit probability: 1.3%, top 32% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.9
- EG Score
- 5.9(medium)
- EG Risk
- —
- EPSS
- 68.3%
- KEV
- Not listed
Published
May 31, 2018
Last Modified
November 21, 2024
References (4)
- support@hackeronehttps://github.com/uWebSockets/uWebSockets/commit/37deefd01f0875e133ea967122e3a5e421b8fcd9
- support@hackeronehttps://nodesecurity.io/advisories/149
- af854a3a-2127-422b-91ae-364da2661108https://github.com/uWebSockets/uWebSockets/commit/37deefd01f0875e133ea967122e3a5e421b8fcd9
- af854a3a-2127-422b-91ae-364da2661108https://nodesecurity.io/advisories/149
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| uws | — | 0.10.9 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 13× in last 7d / 42× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 22:01 UTCEG score recompute
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- 2026-05-28 07:37 UTCEG score recompute
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- 2026-05-26 13:42 UTCEPSS rescore
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Related CVEs(same CWE)
Same CWE
10 shownCWE-20 · CWE-400
- CVE-2002-2444EG 9.8CRITICAL
- CVE-2004-1464NVD 5.9EG 9.0 KEVEPSS 92%MEDIUM
- CVE-2002-1359NVD 0.0EG 8.2EPSS 100%NONE
- CVE-2003-0714NVD 0.0EG 7.6EPSS 99%NONE
- CVE-2002-20001EG 7.5EPSS 98%HIGH
- CVE-2001-0827EG 7.5HIGH
- CVE-2000-0258EG 7.5EPSS 97%HIGH
- CVE-1999-0159EG 3.5LOW
- CVE-2000-0380NVD 0.0EG 0.8EPSS 98%NONE
- CVE-2002-2443EG 0.0EPSS 93%NONE
Frequently asked(5)
What is CVE-2016-10544?
When was CVE-2016-10544 disclosed?
Is CVE-2016-10544 actively exploited?
What is the CVSS score of CVE-2016-10544?
How do I remediate CVE-2016-10544?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2016-10544
Is Your Infrastructure Affected by CVE-2016-10544?
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