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Advisory severityHigh7.5Vendor: MediumRed Hat Linux

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

This high-severity Red Hat Linux advisory covers CVE-2025-32049 affecting Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8.2 Advanced Update Support.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2025-32049 Source published Source updated

VulniPulse record published

CVE-2025-32049
Affected products & platforms
Red Hat LinuxRed Hat Enterprise Linux
Open source advisory

Summary

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).

Red Hat severity: Moderate — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-770.

Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.6 Telecommunications Update Service; Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions; Red Hat Enterprise Linux 8.8 Extended Update Support; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.2 Extended Update Support; Red Hat Enterprise Linux 9.4 Extended Update Support; Red Hat Enterprise Linux 6.

Will not fix / out of support: Red Hat Enterprise Linux 6. Red Hat fixing advisory: RHSA-2025:8128, RHSA-2025:21657, RHSA-2025:9179, RHSA-2025:8132, RHSA-2025:8480, RHSA-2025:8663, RHSA-2025:8482, RHSA-2025:8252, RHSA-2025:8126, RHSA-2025:8481, RHSA-2025:8140, RHSA-2025:8139.

Affected products named by the advisory: Red Hat package: libsoup3.

Is CVE-2025-32049 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2025-32049 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2025-32049?

Upgrade to a fixed release named by Red Hat:

  • libsoup3-0:3.6.5-3.el10_0.6
  • libsoup-0:2.62.2-9.el7_9
  • libsoup-0:2.62.2-6.el7_9
  • libsoup-0:2.62.3-9.el8_10
  • libsoup-0:2.62.3-1.el8_2.5
  • libsoup-0:2.62.3-2.el8_4.5
  • libsoup-0:2.62.3-2.el8_6.5
  • libsoup-0:2.62.3-3.el8_8.5
  • libsoup-0:2.72.0-10.el9_6.2
  • libsoup-0:2.72.0-8.el9_0.5
  • libsoup-0:2.72.0-8.el9_2.5
  • libsoup-0:2.72.0-8.el9_4.5

12 more fixed releases are listed below.

Confirm against the vendor advisory before you patch.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.

Official advisory · high-confidence parse· fetched 10 days ago·verify at source

Fixed versions
  • libsoup3-0:3.6.5-3.el10_0.6
  • libsoup-0:2.62.2-9.el7_9
  • libsoup-0:2.62.2-6.el7_9
  • libsoup-0:2.62.3-9.el8_10
  • libsoup-0:2.62.3-1.el8_2.5
  • libsoup-0:2.62.3-2.el8_4.5
  • libsoup-0:2.62.3-2.el8_6.5
  • libsoup-0:2.62.3-3.el8_8.5
  • libsoup-0:2.72.0-10.el9_6.2
  • libsoup-0:2.72.0-8.el9_0.5
  • libsoup-0:2.72.0-8.el9_2.5
  • libsoup-0:2.72.0-8.el9_4.5
  • RHSA-2025:8128
  • RHSA-2025:21657
  • RHSA-2025:9179
  • RHSA-2025:8132
  • RHSA-2025:8480
  • RHSA-2025:8663
  • RHSA-2025:8482
  • RHSA-2025:8252
  • RHSA-2025:8126
  • RHSA-2025:8481
  • RHSA-2025:8140
  • RHSA-2025:8139

Official advisory · high-confidence parse· fetched 10 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • No mitigation is currently available for this vulnerability.

Official advisory · high-confidence parse· fetched 10 days ago·verify at source

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