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 products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | libsoup | ≤ 3.6.4 | — |
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service | — | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Extended Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 13 | libsoup3 +1 | No fix yet | — |
| Debian 12 | libsoup3 +1 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | libsoup3 +1 | No fix yet | — |
| Ubuntu 26.04 LTS | libsoup3 | No fix yet | — |
| Ubuntu 25.10 | libsoup3 +1 | No fix yet | — |
| Ubuntu 24.04 LTS | libsoup3 | No fix yet | — |
| Ubuntu 22.04 LTS | libsoup2.4 | No fix yet | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 26.04 LTS | libsoup2.4 | No fix yet | — |
| Ubuntu Pro 22.04 LTS | libsoup3 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | libsoup2.4 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | libsoup2.4 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | libsoup2.4 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | libsoup3 +2 | 3.6.5-3.el10_0.6 | RHSA-2025:8128 |
| RHEL 9 | libsoup +1 | 2.72.0-10.el9_6.2 | RHSA-2025:8126 |
| RHEL 8 | libsoup +1 | 2.62.3-9.el8_10 | RHSA-2025:8132 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.4 EUS | libsoup +1 | 2.72.0-8.el9_4.5 | RHSA-2025:8139 |
| RHEL 9.2 EUS | libsoup +1 | 2.72.0-8.el9_2.5 | RHSA-2025:8140 |
| RHEL 9.0 E4S | libsoup +1 | 2.72.0-8.el9_0.5 | RHSA-2025:8481 |
| RHEL 8.8 EUS | libsoup +1 | 2.62.3-3.el8_8.5 | RHSA-2025:8252 |
| RHEL 8.6 TUS | libsoup +1 | 2.62.3-2.el8_6.5 | RHSA-2025:8482 |
| RHEL 8.6 E4S | libsoup +1 | 2.62.3-2.el8_6.5 | RHSA-2025:8482 |
| RHEL 8.6 AUS | libsoup +1 | 2.62.3-2.el8_6.5 | RHSA-2025:8482 |
| RHEL 8.4 AUS | libsoup +1 | 2.62.3-2.el8_4.5 | RHSA-2025:8663 |
| RHEL 8.2 AUS | libsoup +1 | 2.62.3-1.el8_2.5 | RHSA-2025:8480 |
| RHEL 7 ELS | libsoup +1 | 2.62.2-6.el7_9 | RHSA-2025:21657, RHSA-2025:9179 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | libsoup3-doc | 3.6.5-3.el10_0.6 | ALSA-2025:8128 |
| AlmaLinux 9 | libsoup +1 | 2.72.0-10.el9_6.2 | ALSA-2025:8126 |
| AlmaLinux 8 | libsoup +1 | 2.62.3-9.el8_10 | ALSA-2025:8132 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | libsoup3 | 3.6.5-3.el10_0.6 | RLSA-2025:8128 |
| Rocky Linux 9 | libsoup | 2.72.0-10.el9_6.2 | RLSA-2025:8126 |
| Rocky Linux 8 | libsoup | 2.62.3-9.el8_10 | RLSA-2025:8132 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | libsoup | 3.4.4-150600.3.34.1 | SUSE-SU-2026:0690-1 |
| SLES 15 SP7 | libsoup2 | 2.74.3-150600.4.27.1 | SUSE-SU-2026:0657-1 |
| SLES 15 SP6 | libsoup | 3.4.4-150600.3.34.1 | SUSE-SU-2026:0690-1 |
| SLES 15 SP6 | libsoup2 | 2.74.3-150600.4.27.1 | SUSE-SU-2026:0657-1 |
| SLES 15 SP5 | libsoup | 3.0.4-150400.3.34.1 | SUSE-SU-2026:0689-1 |
| SLES 15 SP5 | libsoup2 | 2.74.2-150400.3.31.1 | SUSE-SU-2026:0834-1 |
| SLES 15 SP4 | libsoup | 3.0.4-150400.3.34.1 | SUSE-SU-2026:0689-1 |
| SLES 15 SP4 | libsoup2 | 2.74.2-150400.3.31.1 | SUSE-SU-2026:0834-1 |
| SLES 12 SP5 | libsoup | 2.62.2-5.34.1 | SUSE-SU-2026:0703-1 |
Show 14 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | libsoup | 3.6.6-160000.1.1 | SUSE-SU-2026:20902-1 |
| SLES for SAP 15 SP6 | libsoup | 3.4.4-150600.3.34.1 | SUSE-SU-2026:0690-1 |
| SLES for SAP 15 SP6 | libsoup2 | 2.74.3-150600.4.27.1 | SUSE-SU-2026:0657-1 |
| SLES for SAP 15 SP5 | libsoup | 3.0.4-150400.3.34.1 | SUSE-SU-2026:0689-1 |
| SLES for SAP 15 SP5 | libsoup2 | 2.74.2-150400.3.31.1 | SUSE-SU-2026:0834-1 |
| SLES for SAP 15 SP4 | libsoup | 3.0.4-150400.3.34.1 | SUSE-SU-2026:0689-1 |
| SLES for SAP 15 SP4 | libsoup2 | 2.74.2-150400.3.31.1 | SUSE-SU-2026:0834-1 |
| SLES 16.0 | libsoup | 3.6.6-160000.1.1 | SUSE-SU-2026:20902-1 |
| SLE Micro 6.2 | libsoup | 3.6.6-160000.1.1 | SUSE-SU-2026:20752-1 |
| SLE Micro 6.1 | libsoup | 3.4.4-slfo.1.1_7.1 | SUSE-SU-2026:20649-1 |
| SLE Micro 6.0 | libsoup | 3.4.2-13.1 | SUSE-SU-2026:20529-1 |
| SLE Micro 5.5 | libsoup2 | 2.74.2-150400.3.31.1 | SUSE-SU-2026:0834-1 |
| SLE Micro 5.4 | libsoup2 | 2.74.2-150400.3.31.1 | SUSE-SU-2026:0834-1 |
| SLE Micro 5.3 | libsoup2 | 2.74.2-150400.3.31.1 | SUSE-SU-2026:0834-1 |
| SLE Micro 5.2 | libsoup | 2.68.4-150200.4.30.1 | SUSE-SU-2026:0658-1 |
| SLE HPC 15 SP5 | libsoup | 3.0.4-150400.3.34.1 | SUSE-SU-2026:0689-1 |
| SLE HPC 15 SP5 | libsoup2 | 2.74.2-150400.3.31.1 | SUSE-SU-2026:0834-1 |
| SLE HPC 15 SP4 | libsoup | 3.0.4-150400.3.34.1 | SUSE-SU-2026:0689-1 |
| SLE HPC 15 SP4 | libsoup2 | 2.74.2-150400.3.31.1 | SUSE-SU-2026:0834-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libsoup | 3.6.5-13.1 | openSUSE-SU-2026:10208-1 |
| openSUSE Tumbleweed | libsoup2 | 2.74.3-16.1 | openSUSE-SU-2026:10209-1 |
| openSUSE Leap 16.0 | libsoup | 3.6.6-160000.1.1 | openSUSE-SU-2026:20384-1 |
| openSUSE Leap 16.0 | libsoup2 | 2.74.3-160000.4.1 | openSUSE-SU-2026:20354-1 |
| openSUSE Leap 15.6 | libsoup | 3.4.4-150600.3.34.1 | SUSE-SU-2026:0690-1 |
| openSUSE Leap 15.6 | libsoup2 | 2.74.3-150600.4.27.1 | SUSE-SU-2026:0657-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | libsoup +2 | 2.72.0-6.amzn2023.0.7 | ALAS2023-2025-1187 |
| Amazon Linux 2023 | libsoup3 +2 | 3.6.5-50.amzn2023 | ALAS2023-2025-1134 |
| Amazon Linux 2 | libsoup +1 | 2.56.0-6.amzn2.0.5 | ALAS2-2025-3006 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | libsoup | 3.4.4-12 | — |
| Azure Linux 2 (CBL-Mariner) | libsoup | 3.0.4-12 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | libsoup3 +2 | 3.6.5-3.el10_0.6 | ELSA-2025-8128 |
| Oracle Linux 9 | libsoup +1 | 2.72.0-10.el9_6.2 | ELSA-2025-8126 |
| Oracle Linux 8 | libsoup +1 | 2.62.3-9.el8_10 | ELSA-2025-8132 |
| Oracle Linux 7 | libsoup +1 | 2.62.2-2.0.5.el7 | ELSA-2025-21657, ELSA-2025-9179 |
Advisories 41
- ALSA-2025:8126 Important: libsoup security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:8128 Important: libsoup3 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:8132 Important: libsoup security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2025:9179 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:8663 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:8482 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:8481 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:8480 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:8252 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:8140 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:8132 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:8139 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:8126 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:21657 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:8128 Red Hat Security Advisory: libsoup3 security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- WID-SEC-2025-1140 Red Hat Enterprise Linux (libsoup): Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 29, 2026
- SUSE-SU-2026:20902-1 Security update for libsoup SUSE / openSUSE Security Updates · Apr 2, 2026
- openSUSE-SU-2026:20384-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 26, 2026
- SUSE-SU-2026:20752-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 25, 2026
- openSUSE-SU-2026:20354-1 Security update for libsoup2 SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2026:10208-1 libsoup-3_0-0-3.6.5-13.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2026:10209-1 libsoup-2_4-1-2.74.3-16.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20649-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0689-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0690-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0657-1 Security update for libsoup2 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0658-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0703-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0834-1 Security update for libsoup2 SUSE / openSUSE Security Updates · Mar 7, 2026
- SUSE-SU-2026:20529-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 4, 2026
- ELSA-2025-21657 Important: libsoup security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Dec 10, 2025
- RLSA-2025:8128 Important: libsoup3 security update Rocky Linux Security Advisories · Oct 8, 2025
- RLSA-2025:8126 Important: libsoup security update Rocky Linux Security Advisories · Oct 7, 2025
- ALAS2-2025-3006 Important: libsoup security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Sep 29, 2025
- ALAS2023-2025-1187 Important: libsoup security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Sep 15, 2025
- ALAS2023-2025-1134 Important: libsoup3 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Aug 8, 2025
- RLSA-2025:8132 Important: libsoup security update Rocky Linux Security Advisories · Jul 29, 2025
- ELSA-2025-9179 Important: libsoup security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jul 2, 2025
- ELSA-2025-8128 Important: libsoup3 security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jun 26, 2025
- ELSA-2025-8126 Important: libsoup security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 26, 2025
- ELSA-2025-8132 Important: libsoup security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 26, 2025
References
- RHSA-2025:21657 vendor-advisory
- RHSA-2025:8126 vendor-advisory
- RHSA-2025:8128 vendor-advisory
- RHSA-2025:8132 vendor-advisory
- RHSA-2025:8139 vendor-advisory
- RHSA-2025:8140 vendor-advisory
- RHSA-2025:8252 vendor-advisory
- RHSA-2025:8480 vendor-advisory
- RHSA-2025:8481 vendor-advisory
- RHSA-2025:8482 vendor-advisory
- RHSA-2025:8663 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2025-32049 vdb-entry
- RHBZ#2357066 issue-tracking
- https://gitlab.gnome.org/GNOME/libsoup/-/issues/390
- https://gitlab.gnome.org/GNOME/libsoup/-/merge_requests/408