CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2024-37890
High (7.5). EPSS 1.4% chance of exploitation in the next 30 days. Fixed in ws 5.2.4, 6.2.3, 7.5.10.
ws is an open source WebSocket client and server for Node.js. A request with a number of headers exceeding theserver.maxHeadersCount threshold could be used to crash a ws server. The vulnerability was fixed in ws@8.17.1 (e55e510) and backported to ws@7.5.10 (22c2876), ws@6.2.3 (eeb76d3), and ws@5.2.4 (4abd8f6). In vulnerable versions of ws, the issue can be mitigated in the following ways: 1. Reduce the maximum allowed length of the request headers using the --max-http-header-size=size and/or the maxHeaderSize options so that no more headers than the server.maxHeadersCount limit can be sent. 2. Set server.maxHeadersCount to 0 so that no limit is applied.
Severity
- EPSS
- 1.4% chance of exploitation in the next 30 days; higher than 71% of CVEs (scores of 2026-10-31)
- CWE
- CWE-476
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-3h5v-q93c-6h6q | npm | ws | >=2.1.0 <5.2.4 | 5.2.4 |
| GHSA-3h5v-q93c-6h6q | npm | ws | >=6.0.0 <6.2.3 | 6.2.3 |
| GHSA-3h5v-q93c-6h6q | npm | ws | >=7.0.0 <7.5.10 | 7.5.10 |
| GHSA-3h5v-q93c-6h6q | npm | ws | >=8.0.0 <8.17.1 | 8.17.1 |
References
- https://github.com/websockets/ws/commit/22c28763234aa75a7e1b76f5c01c181260d7917f
- https://github.com/websockets/ws/commit/4abd8f6de4b0b65ef80b3ff081989479ed93377e
- https://github.com/websockets/ws/commit/e55e5106f10fcbaac37cfa89759e4cc0d073a52c
- https://github.com/websockets/ws/commit/eeb76d313e2a00dd5247ca3597bba7877d064a63
- https://github.com/websockets/ws/issues/2230