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EUVD-2026-71465Published

undici's experimental WebSocketStream client crashes the whole Node.js process when a remote peer closes the TCP connection without a WebSocket close handshake. On an unclean close the internal socket-close handler calls abort on the writab…

Exact source revision recorded 5 Nov 2026 14:38:22 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

euvd · EUVD-2026-71465

Published

undici's experimental WebSocketStream client crashes the whole Node.js process when a remote peer closes the TCP connection without a WebSocket close handshake. On an unclean close the internal socket-close handler calls abort on the writable stream unconditionally and discards the returned promise, but per the WHATWG Streams standard aborting a locked writable returns a promise that rejects with a TypeError. Because the application holds a writer on that writable, which is the only way to write, the rejection is never observed and Node's default unhandled-rejection behavior terminates the process. An untrusted server can therefore crash a client with a single abrupt disconnect, with no authentication and no application mistake. This affects undici versions from 7.0.0 up to 7.29.1 and from 8.0.0 up to 8.10.2. Users should upgrade to undici 7.29.1 or 8.10.2.

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Sep 4, 2026, 4:30:07 PM

dateUpdated: Sep 4, 2026, 7:30:14 PM

5 related source bulletins · separate from aliases

WID-SEC-W-2026-3596: IBM App Connect Enterprise: Mehrere Schwachstellen

CVE-2022-35948 · CVE-2026-13149 · CVE-2026-14257 · CVE-2026-15157 · CVE-2026-1527 · CVE-2026-16728 · CVE-2026-16729 · CVE-2026-18149 · CVE-2026-18540 · CVE-2026-19534 · CVE-2026-2391 · CVE-2026-45820 · CVE-2026-54272 · CVE-2026-63670 · CVE-2026-67213 · CVE-2026-67214 · CVE-2026-69152 · CVE-2026-69192 · CVE-2026-69198 · CVE-2026-73566 · CVE-2026-73646 · CVE-2026-77037 · CVE-2026-77063 · CVE-2026-77078 · CVE-2026-82333 · CVE-2026-82417 · CVE-2026-82562 · CVE-2026-83605 · CVE-2026-83606 · CVE-2026-83607 · CVE-2026-83608 · CVE-2026-83609 · CVE-2026-83610 · CVE-2026-83611 · CVE-2026-83612 · CVE-2026-83613 · CVE-2026-83614 · CVE-2026-83615 · CVE-2026-83616 · CVE-2026-83618 · CVE-2026-83619 · CVE-2026-84292 · CVE-2026-84371 · CVE-2026-84375 · CVE-2026-84890 · CVE-2026-84933 · CVE-2026-84947 · CVE-2026-84961 · CVE-2026-85008 · CVE-2026-85014 · CVE-2026-85024 · CVE-2026-85152

RHSA-2026:54438: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

CVE-2026-18149 · CVE-2026-48932 · CVE-2026-84890 · CVE-2026-84933 · CVE-2026-84947 · CVE-2026-84961 · CVE-2026-85008 · CVE-2026-85014 · CVE-2026-85152

RHSA-2026:66008: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

CVE-2026-14199 · CVE-2026-18149 · CVE-2026-18540 · CVE-2026-19197 · CVE-2026-19534 · CVE-2026-28378 · CVE-2026-84890 · CVE-2026-84933 · CVE-2026-84947 · CVE-2026-84961 · CVE-2026-85008 · CVE-2026-85014

RHSA-2026:54389: Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

CVE-2026-14257 · CVE-2026-18149 · CVE-2026-48932 · CVE-2026-69152 · CVE-2026-84890 · CVE-2026-84933 · CVE-2026-84947 · CVE-2026-85008 · CVE-2026-85014 · CVE-2026-85152

openSUSE-SU-2026:22111-1: Security update for pi-coding-agent

CVE-2026-102276 · CVE-2026-102277 · CVE-2026-102278 · CVE-2026-84890 · CVE-2026-84933 · CVE-2026-84947 · CVE-2026-84961 · CVE-2026-85008 · CVE-2026-85014 · CVE-2026-85024 · CVE-2026-85152

Source published
Sep 4, 2026, 4:30:07 PM (timezone not stated)
Source modified
Sep 4, 2026, 7:30:14 PM (timezone not stated)
Observed here
5 Nov 2026 14:38:22 UTC
Source terms
ENISA EUVD · source terms and attribution apply

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 3.1 · 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

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Sources read 12 Nov 12:12 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current

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