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Vulnerability · Published Apr 3, 2025 · Assigned by redhat

CVE-2025-32049Libsoup: denial of service attack to websocket server

High 7.5

In plain English

A high-severity resource allocation without limits in libsoup. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 65% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.1%top 34.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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).

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8libsoup2.62.3-9.el8_10ALSA-2025:8132
AlmaLinux:9libsoup2.72.0-10.el9_6.2ALSA-2025:8126
AlmaLinux:8libsoup-devel2.62.3-9.el8_10ALSA-2025:8132
AlmaLinux:9libsoup-devel2.72.0-10.el9_6.2ALSA-2025:8126
AlmaLinux:10libsoup3-doc3.6.5-3.el10_0.6ALSA-2025:8128
Debian:12libsoup2.4no fix listedDEBIAN-CVE-2025-32049
Debian:13libsoup2.4no fix listedDEBIAN-CVE-2025-32049
Debian:12libsoup3no fix listedDEBIAN-CVE-2025-32049
Debian:13libsoup3no fix listedDEBIAN-CVE-2025-32049
Rocky Linux:8libsoup0:2.62.3-9.el8_10RLSA-2025:8132
Rocky Linux:9libsoup0:2.72.0-10.el9_6.2RLSA-2025:8126
Rocky Linux:10libsoup30:3.6.5-3.el10_0.6RLSA-2025:8128
Ubuntu:22.04:LTSlibsoup2.4no fix listedUBUNTU-CVE-2025-32049
Ubuntu:25.10libsoup2.4no fix listedUBUNTU-CVE-2025-32049
Ubuntu:26.10libsoup2.4no fix listedUBUNTU-CVE-2025-32049
Ubuntu:24.04:LTSlibsoup3no fix listedUBUNTU-CVE-2025-32049
Ubuntu:25.10libsoup3no fix listedUBUNTU-CVE-2025-32049
Ubuntu:26.04:LTSlibsoup3no fix listedUBUNTU-CVE-2025-32049
Ubuntu:26.10libsoup3no fix listedUBUNTU-CVE-2025-32049

Affected products (as reported)

VendorProductVersions
libsoup 0 – through 3.6.4
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support see references
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 6 see references

Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References