Bug 2530901

Summary:	CVE-2026-85014 nodejs24: undici: Denial of Service via WebSocketStream unclean close [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Ganesh <gnaik>
Component:	nodejs24	Assignee:	Jan Staněk <jstanek>
Status:	CLOSED RAWHIDE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rawhide	CC:	aradchen, jstanek, tjuhasz
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["832bc648-7691-43e6-bc2d-ff699fdca3f0"]}
Fixed In Version:	nodejs24-24.22.1	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-11-03 11:26:40 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2528712

Description Ganesh 2026-09-09 13:34:39 UTC

Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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.

Comment 1 Fedora Update System 2026-10-15 11:51:45 UTC

FEDORA-2026-5ca956d465 (nodejs24-24.21.0-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-5ca956d465

Comment 2 Fedora Update System 2026-10-16 20:57:43 UTC

FEDORA-2026-5ca956d465 has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-5ca956d465`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-5ca956d465

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 3 Fedora Update System 2026-10-16 21:31:56 UTC

FEDORA-2026-cb979e22de has been pushed to the Fedora 45 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-cb979e22de`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-cb979e22de

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 4 Fedora Update System 2026-11-03 02:25:03 UTC

FEDORA-2026-d6c2df6970 has been pushed to the Fedora 45 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-d6c2df6970`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-d6c2df6970

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 5 Fedora Update System 2026-11-03 02:57:07 UTC

FEDORA-2026-5c08945adb has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-5c08945adb`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-5c08945adb

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 6 Jan Staněk 2026-11-03 11:26:40 UTC

This vulnerability is fixed in the latest available release of nodejs24-24.22.1.