CVE-2021-22883
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Node.js before 10.24.0, 12.21.0, 14.16.0, and 15.10.0 is vulnerable to a denial of service attack when too many connection attempts with an 'unknownProtocol' are established. This leads to a leak of file descriptors. If a file descriptor limit is configured on the system, then the server is unable to accept new connections and prevent the process also from opening, e.g. a file. If no file descriptor limit is configured, then this lead to an excessive memory usage and cause the system to run out of memory.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Node
- Vendor
- NodeJS
- Product
- Node
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.0 | affected | semver | 4.* | Unavailable | None listed |
| 5.0 | affected | semver | 5.* | Unavailable | None listed |
| 6.0 | affected | semver | 6.* | Unavailable | None listed |
| 7.0 | affected | semver | 7.* | Unavailable | None listed |
| 8.0 | affected | semver | 8.* | Unavailable | None listed |
| 9.0 | affected | semver | 9.* | Unavailable | None listed |
| 10.0 | affected | semver | 10.24.0 | Unavailable | None listed |
| 11.0 | affected | semver | 11.* | Unavailable | None listed |
| 12.0 | affected | semver | 12.21.0 | Unavailable | None listed |
| 13.0 | affected | semver | 13.* | Unavailable | None listed |
| 14.0 | affected | semver | 14.16.0 | Unavailable | None listed |
| 15.0 | affected | semver | 15.10.0 | Unavailable | None listed |