CVE-2025-32049

Publication date 3 April 2025

Last updated 24 September 2025

Ubuntu priority

Cvss 3 Severity Score

Description

A flaw was found in libsoup. The SoupWebsocketConnection may accept a large WebSocket message, which may cause libsoup to allocate memory and lead to a denial of service (DoS).

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libsoup3	25.10 questing	Vulnerable, fix deferred
	25.04 plucky	Vulnerable, fix deferred
	24.10 oracular	Ignored end of life, was deferred [2025-09-23]
	24.04 LTS noble	Vulnerable, fix deferred
	22.04 LTS jammy	Vulnerable, fix deferred
	20.04 LTS focal	Not in release
libsoup2.4	25.10 questing	Vulnerable, fix deferred
	25.04 plucky	Vulnerable, fix deferred
	24.10 oracular	Ignored end of life, was deferred [2025-07-28]
	24.04 LTS noble	Vulnerable, fix deferred
	22.04 LTS jammy	Vulnerable, fix deferred
	20.04 LTS focal	Vulnerable, fix deferred
	18.04 LTS bionic	Vulnerable, fix deferred
	16.04 LTS xenial	Vulnerable, fix deferred

Notes

fabian

Fix in PR https://gitlab.gnome.org/GNOME/libsoup/-/merge_requests/408 not yet merged upstream.

hlibk

As of 2025-09-23, the upstream PR with the fix has not been merged yet.

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H