CVE-2025-32049

Libsoup: denial of service attack to websocket server

HIGH 7.5

At a glance

Source: NVD
EPSS: EPSS 0.89 % · percentile 59 (2026-10-28)
State: PUBLISHED
Published: 2025-04-03 13:36 UTC
Updated: 2026-06-30 00:33 UTC
Assigner: redhat
NVD status: Deferred

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).

Weaknesses (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	redhat
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD · secalert@redhat.com (Secondary)

European references

ENISA EUVD · EUVD-2025-9634
GCVE · GCVE-0-2025-32049

CERT-FR advisories

CERTFR-2025-AVI-0938 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr

Affected products

Product	Versions
libsoup	affected 0 ≤ 3.6.4
Red Hat · Red Hat Enterprise Linux 10	unaffected 0:3.6.5-3.el10_0.6 < *
Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle Support	unaffected 0:2.62.2-9.el7_9 < *
Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle Support	unaffected 0:2.62.2-6.el7_9 < *
Red Hat · Red Hat Enterprise Linux 8	unaffected 0:2.62.3-9.el8_10 < *
Red Hat · Red Hat Enterprise Linux 8	unaffected 0:2.62.3-9.el8_10 < *
Red Hat · Red Hat Enterprise Linux 8.2 Advanced Update Support	unaffected 0:2.62.3-1.el8_2.5 < *
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	unaffected 0:2.62.3-2.el8_4.5 < *
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	unaffected 0:2.62.3-2.el8_6.5 < *
Red Hat · Red Hat Enterprise Linux 8.6 Telecommunications Update Service	unaffected 0:2.62.3-2.el8_6.5 < *
Red Hat · Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions	unaffected 0:2.62.3-2.el8_6.5 < *
Red Hat · Red Hat Enterprise Linux 8.8 Extended Update Support	unaffected 0:2.62.3-3.el8_8.5 < *
Red Hat · Red Hat Enterprise Linux 9	unaffected 0:2.72.0-10.el9_6.2 < *
Red Hat · Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions	unaffected 0:2.72.0-8.el9_0.5 < *
Red Hat · Red Hat Enterprise Linux 9.2 Extended Update Support	unaffected 0:2.72.0-8.el9_2.5 < *
Red Hat · Red Hat Enterprise Linux 9.4 Extended Update Support	unaffected 0:2.72.0-8.el9_4.5 < *
Red Hat · Red Hat Enterprise Linux 6

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD