Description
A vulnerability was found in the libsoup package. This flaw stems from its failure to correctly verify the termination of multipart HTTP messages. This can allow a remote attacker to send a specially crafted multipart HTTP body, causing the libsoup-consuming server to read beyond its allocated memory boundaries (out-of-bounds read).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | libsoup | ≤ 3.6.5 | — |
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
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 | libsoup2.4 | No fix yet | — |
| Debian 13 | libsoup3 | 3.6.5-2 | — |
| Debian 12 | libsoup3 +1 | No fix yet | — |
| Debian 11 | libsoup2.4 | 2.72.0-2+deb11u3 | DLA-4398-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | libsoup2.4 | 2.74.3-10.1ubuntu4 | — |
| Ubuntu 25.10 | libsoup2.4 | 2.74.3-10.1ubuntu4 | — |
| Ubuntu 25.10 | libsoup3 | 3.6.5-3 | — |
| Ubuntu 24.04 LTS | libsoup2.4 | 2.74.3-6ubuntu1.6 | USN-7643-1 |
| Ubuntu 24.04 LTS | libsoup3 | 3.4.4-5ubuntu0.5 | USN-7643-1 |
| Ubuntu 22.04 LTS | libsoup2.4 | 2.74.2-3ubuntu0.6 | USN-7643-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | libsoup3 | 3.0.7-0ubuntu1+esm5 | USN-7643-1 |
| Ubuntu Pro 20.04 LTS | libsoup2.4 | 2.70.0-1ubuntu0.5+esm1 | USN-7643-1 |
| Ubuntu Pro 18.04 LTS | libsoup2.4 | 2.62.1-1ubuntu0.4+esm6 | USN-7643-1 |
| Ubuntu Pro 16.04 LTS | libsoup2.4 | 2.52.2-1ubuntu0.3+esm5 | USN-7643-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | libsoup | 3.4.4-150600.3.10.1 | SUSE-SU-2025:01812-1 |
| SLES 15 SP7 | libsoup2 | 2.74.3-150600.4.9.1 | SUSE-SU-2025:01802-1 |
| SLES 15 SP6 | libsoup | 3.4.4-150600.3.10.1 | SUSE-SU-2025:01812-1 |
| SLES 15 SP6 | libsoup2 | 2.74.3-150600.4.9.1 | SUSE-SU-2025:01802-1 |
| SLES 15 SP5 | libsoup | 3.0.4-150400.3.10.1 | SUSE-SU-2025:01817-1 |
| SLES 15 SP5 | libsoup2 | 2.74.2-150400.3.9.1 | SUSE-SU-2025:01864-1 |
| SLES 15 SP4 | libsoup | 3.0.4-150400.3.10.1 | SUSE-SU-2025:01817-1 |
| SLES 15 SP4 | libsoup2 | 2.74.2-150400.3.9.1 | SUSE-SU-2025:01864-1 |
| SLES 15 SP3 | libsoup | 2.68.4-150200.4.9.1 | SUSE-SU-2025:01801-1 |
Show 16 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | libsoup | 2.62.2-5.15.1 | SUSE-SU-2025:01794-1 |
| SLES for SAP 15 SP5 | libsoup | 3.0.4-150400.3.10.1 | SUSE-SU-2025:01817-1 |
| SLES for SAP 15 SP5 | libsoup2 | 2.74.2-150400.3.9.1 | SUSE-SU-2025:01864-1 |
| SLES for SAP 15 SP4 | libsoup | 3.0.4-150400.3.10.1 | SUSE-SU-2025:01817-1 |
| SLES for SAP 15 SP4 | libsoup2 | 2.74.2-150400.3.9.1 | SUSE-SU-2025:01864-1 |
| SLES for SAP 15 SP3 | libsoup | 2.68.4-150200.4.9.1 | SUSE-SU-2025:01801-1 |
| SLE Micro 6.1 | libsoup | 3.4.4-slfo.1.1_4.1 | SUSE-SU-2025:20598-1 |
| SLE Micro 6.0 | libsoup | 3.4.2-8.1 | SUSE-SU-2025:20453-1 |
| SLE Micro 5.5 | libsoup2 | 2.74.2-150400.3.9.1 | SUSE-SU-2025:01864-1 |
| SLE Micro 5.4 | libsoup2 | 2.74.2-150400.3.9.1 | SUSE-SU-2025:01864-1 |
| SLE Micro 5.3 | libsoup2 | 2.74.2-150400.3.9.1 | SUSE-SU-2025:01864-1 |
| SLE Micro 5.2 | libsoup | 2.68.4-150200.4.9.1 | SUSE-SU-2025:01801-1 |
| SLE HPC 15 SP5 | libsoup | 3.0.4-150400.3.10.1 | SUSE-SU-2025:01817-1 |
| SLE HPC 15 SP5 | libsoup2 | 2.74.2-150400.3.9.1 | SUSE-SU-2025:01864-1 |
| SLE HPC 15 SP4 | libsoup | 3.0.4-150400.3.10.1 | SUSE-SU-2025:01817-1 |
| SLE HPC 15 SP4 | libsoup2 | 2.74.2-150400.3.9.1 | SUSE-SU-2025:01864-1 |
| SLE HPC 15 SP3 | libsoup | 2.68.4-150200.4.9.1 | SUSE-SU-2025:01801-1 |
| SUSE Manager Server 4.3 | libsoup | 3.0.4-150400.3.10.1 | SUSE-SU-2025:01817-1 |
| SUSE Manager Server 4.3 | libsoup2 | 2.74.2-150400.3.9.1 | SUSE-SU-2025:01864-1 |
| SUSE Manager Proxy 4.3 | libsoup | 3.0.4-150400.3.10.1 | SUSE-SU-2025:01817-1 |
| SUSE Manager Proxy 4.3 | libsoup2 | 2.74.2-150400.3.9.1 | SUSE-SU-2025:01864-1 |
| SUSE Enterprise Storage 7.1 | libsoup | 2.68.4-150200.4.9.1 | SUSE-SU-2025:01801-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libsoup | 3.6.5-5.1 | openSUSE-SU-2025:15185-1 |
| openSUSE Tumbleweed | libsoup2 | 2.74.3-11.1 | openSUSE-SU-2025:15189-1 |
| openSUSE Leap 15.6 | libsoup | 3.4.4-150600.3.10.1 | SUSE-SU-2025:01812-1 |
| openSUSE Leap 15.6 | libsoup2 | 2.74.3-150600.4.9.1 | SUSE-SU-2025:01802-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | libsoup +2 | 2.72.0-6.amzn2023.0.8 | ALAS2023-2025-1310 |
| Amazon Linux 2023 | libsoup3 +2 | 3.6.5-52.amzn2023 | ALAS2023-2025-1233 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | libsoup | 3.4.4-9 | — |
| Azure Linux 2 (CBL-Mariner) | libsoup | 3.0.4-9 | — |
Advisories 14
- USN-7643-1 libsoup3, libsoup2.4 vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- openSUSE-SU-2025:15189-1 libsoup-2_4-1-2.74.3-11.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15185-1 libsoup-3_0-0-3.6.5-5.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20598-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20453-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:01812-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:01801-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:01802-1 Security update for libsoup2 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:01794-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:01864-1 Security update for libsoup2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:01817-1 Security update for libsoup SUSE / openSUSE Security Updates · Feb 4, 2026
- DLA-4398-1 libsoup2.4 - security update Debian Security (DSA / DLA) · Dec 9, 2025
- ALAS2023-2025-1310 Moderate: libsoup security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Dec 8, 2025
- ALAS2023-2025-1233 Moderate: libsoup3 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Oct 27, 2025