CVE-2025-32049

Libsoup: denial of service attack to websocket server

Published Apr 3, 2025 CVSS 3.1 · 7.5 High EPSS 1.1% KEV · Not listed
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).

Remediation

Vendor Workaround

No mitigation is currently available for this vulnerability.

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4140-1 libsoup2.4 security update
EUVD EUVD EUVD-2025-9634 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).
History
Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:6 cpe:/o:redhat:rhel_els:6
Type Values Removed Values Added
CPEs cpe:/o:redhat:rhivos:1
Vendors & Products Redhat rhivos
Type Values Removed Values Added
First Time appeared Redhat rhivos
CPEs cpe:/o:redhat:rhivos:1
Vendors & Products Redhat rhivos
Type Values Removed Values Added
First Time appeared Redhat rhel Els
CPEs cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat rhel Els
References
Type Values Removed Values Added
CPEs cpe:/a:redhat:rhel_aus:8.4
Type Values Removed Values Added
CPEs cpe:/a:redhat:rhel_aus:8.4::appstream
cpe:/o:redhat:rhel_aus:8.4::baseos
References
Type Values Removed Values Added
CPEs cpe:/a:redhat:rhel_aus:8.2
cpe:/a:redhat:rhel_aus:8.6
cpe:/a:redhat:rhel_e4s:8.6
cpe:/a:redhat:rhel_e4s:9.0
cpe:/a:redhat:rhel_tus:8.6
Type Values Removed Values Added
First Time appeared Redhat rhel Tus
CPEs cpe:/a:redhat:rhel_aus:8.6::appstream
cpe:/a:redhat:rhel_e4s:8.6::appstream
cpe:/a:redhat:rhel_tus:8.6::appstream
cpe:/o:redhat:rhel_aus:8.6::baseos
cpe:/o:redhat:rhel_e4s:8.6::baseos
cpe:/o:redhat:rhel_tus:8.6::baseos
Vendors & Products Redhat rhel Tus
References
Type Values Removed Values Added
First Time appeared Redhat rhel Aus
Redhat rhel E4s
CPEs cpe:/a:redhat:rhel_aus:8.2::appstream
cpe:/a:redhat:rhel_e4s:9.0::appstream
cpe:/o:redhat:rhel_aus:8.2::baseos
Vendors & Products Redhat rhel Aus
Redhat rhel E4s
References
Type Values Removed Values Added
CPEs cpe:/a:redhat:rhel_eus:8.8
Type Values Removed Values Added
CPEs cpe:/a:redhat:rhel_eus:8.8::appstream
cpe:/o:redhat:rhel_eus:8.8::baseos
References
Type Values Removed Values Added
CPEs cpe:/a:redhat:enterprise_linux:8
cpe:/a:redhat:rhel_eus:9.2
cpe:/o:redhat:enterprise_linux:8
Type Values Removed Values Added
CPEs cpe:/a:redhat:enterprise_linux:9
cpe:/a:redhat:rhel_eus:9.4
Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:8
cpe:/a:redhat:enterprise_linux:8::appstream
cpe:/a:redhat:rhel_eus:9.2::appstream
cpe:/o:redhat:enterprise_linux:10.0
cpe:/o:redhat:enterprise_linux:8::baseos
References
Type Values Removed Values Added
First Time appeared Redhat rhel Eus
CPEs cpe:/a:redhat:rhel_eus:9.4::appstream
Vendors & Products Redhat rhel Eus
References
Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:9 cpe:/a:redhat:enterprise_linux:9::appstream
References
Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:10
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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).
Title Libsoup: denial of service attack to websocket server
First Time appeared Redhat
Redhat enterprise Linux
Weaknesses CWE-770
CPEs cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Nov 5, 2026, 2:30 PM
Reserved
Apr 3, 2025, 1:42 AM
Status
Deferred
Published
Apr 3, 2025, 2:15 PM
Modified
Nov 5, 2026, 3:17 PM
Severity
Moderate
Public date
Apr 3, 2025, 12:00 AM