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HIGH: 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HDefault status
unaffected
20.19.6 (semver)
affected
22.21.1 (semver)
affected
24.12.0 (semver)
affected
25.2.1 (semver)
affected
4.0 (semver) before 4.*
affected
5.0 (semver) before 5.*
affected
6.0 (semver) before 6.*
affected
7.0 (semver) before 7.*
affected
8.0 (semver) before 8.*
affected
9.0 (semver) before 9.*
affected
10.0 (semver) before 10.*
affected
11.0 (semver) before 11.*
affected
12.0 (semver) before 12.*
affected
13.0 (semver) before 13.*
affected
14.0 (semver) before 14.*
affected
15.0 (semver) before 15.*
affected
16.0 (semver) before 16.*
affected
17.0 (semver) before 17.*
affected
18.0 (semver) before 18.*
affected
Description
A malformed `HTTP/2 HEADERS` frame with oversized, invalid `HPACK` data can cause Node.js to crash by triggering an unhandled `TLSSocket` error `ECONNRESET`. Instead of safely closing the connection, the process crashes, enabling a remote denial of service. This primarily affects applications that do not attach explicit error handlers to secure sockets, for example: ``` server.on('secureConnection', socket => { socket.on('error', err => { console.log(err) }) }) ```
Product status
20.19.6 (semver)
22.21.1 (semver)
24.12.0 (semver)
25.2.1 (semver)
4.0 (semver) before 4.*
5.0 (semver) before 5.*
6.0 (semver) before 6.*
7.0 (semver) before 7.*
8.0 (semver) before 8.*
9.0 (semver) before 9.*
10.0 (semver) before 10.*
11.0 (semver) before 11.*
12.0 (semver) before 12.*
13.0 (semver) before 13.*
14.0 (semver) before 14.*
15.0 (semver) before 15.*
16.0 (semver) before 16.*
17.0 (semver) before 17.*
18.0 (semver) before 18.*
References
nodejs.org/.../vulnerability/december-2025-security-releases