Description
A flaw was found in libsoup. When libsoup clients encounter an HTTP redirect, they mistakenly send the HTTP Authorization header to the new host that the redirection points to. This allows the new host to impersonate the user to the original host that issued the redirect.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | libsoup | < 3.6.5 | 3.6.5 |
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| 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 8.4 Telecommunications Update Service | — | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | — | — |
| 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 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
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 | 3.6.5-1 | — |
| Debian 12 | libsoup2.4 | No fix yet | — |
| Debian 12 | libsoup3 | 3.2.3-0+deb12u1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | libsoup2.4 | 2.74.3-10.1ubuntu1 | — |
| Ubuntu 24.04 LTS | libsoup2.4 | 2.74.3-6ubuntu1.3 | USN-7490-1 |
| Ubuntu 24.04 LTS | libsoup3 | 3.4.4-5ubuntu0.3 | USN-7490-3 |
| Ubuntu 22.04 LTS | libsoup2.4 | 2.74.2-3ubuntu0.3 | USN-7490-1 |
| Ubuntu 20.04 LTS | libsoup2.4 | 2.70.0-1ubuntu0.3 | USN-7490-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | libsoup3 | 3.0.7-0ubuntu1+esm3 | USN-7490-3 |
| Ubuntu Pro 18.04 LTS | libsoup2.4 | 2.62.1-1ubuntu0.4+esm2 | USN-7490-1 |
| Ubuntu Pro 16.04 LTS | libsoup2.4 | 2.52.2-1ubuntu0.3+esm1 | USN-7490-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | libsoup3 +2 | 3.6.5-3.el10_0 | RHSA-2025:7505 |
| RHEL 9 | libsoup +1 | 2.72.0-10.el9_6.1 | RHSA-2025:7436 |
| RHEL 8 | libsoup +1 | 2.62.3-8.el8_10 | RHSA-2025:4560 |
Show 11 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_4.4 | RHSA-2025:4440 |
| RHEL 9.2 EUS | libsoup +1 | 2.72.0-8.el9_2.4 | RHSA-2025:4508 |
| RHEL 9.0 E4S | libsoup +1 | 2.72.0-8.el9_0.4 | RHSA-2025:4439 |
| RHEL 8.8 EUS | libsoup +1 | 2.62.3-3.el8_8.4 | RHSA-2025:4568 |
| RHEL 8.6 TUS | libsoup +1 | 2.62.3-2.el8_6.4 | RHSA-2025:4624 |
| RHEL 8.6 E4S | libsoup +1 | 2.62.3-2.el8_6.4 | RHSA-2025:4624 |
| RHEL 8.6 AUS | libsoup +1 | 2.62.3-2.el8_6.4 | RHSA-2025:4624 |
| RHEL 8.4 TUS | libsoup +1 | 2.62.3-2.el8_4.4 | RHSA-2025:4609 |
| RHEL 8.4 E4S | libsoup +1 | 2.62.3-2.el8_4.4 | RHSA-2025:4609 |
| RHEL 8.4 AUS | libsoup +1 | 2.62.3-2.el8_4.4 | RHSA-2025:4609 |
| RHEL 8.2 AUS | libsoup +1 | 2.62.3-1.el8_2.4 | RHSA-2025:4538 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | libsoup3 +2 | 3.6.5-3.el10_0 | ALSA-2025:7505 |
| AlmaLinux 9 | libsoup +1 | 2.72.0-10.el9_6.1 | ALSA-2025:7436 |
| AlmaLinux 8 | libsoup +1 | 2.62.3-8.el8_10 | ALSA-2025:4560 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | libsoup | 2.62.3-8.el8_10 | RLSA-2025:4560 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | libsoup | 3.4.4-150600.3.7.1 | SUSE-SU-2025:01504-1 |
| SLES 15 SP7 | libsoup2 | 2.74.3-150600.4.6.1 | SUSE-SU-2025:01503-1 |
| SLES 15 SP6 | libsoup | 3.4.4-150600.3.7.1 | SUSE-SU-2025:1504-1 |
| SLES 15 SP6 | libsoup2 | 2.74.3-150600.4.6.1 | SUSE-SU-2025:1503-1 |
| SLES 15 SP5 | libsoup | 3.0.4-150400.3.7.1 | SUSE-SU-2025:1510-1 |
| SLES 15 SP5 | libsoup2 | 2.74.2-150400.3.6.1 | SUSE-SU-2026:3936-1, SUSE-SU-2025:1509-1 |
| SLES 15 SP4 | libsoup | 3.0.4-150400.3.7.1 | SUSE-SU-2025:1510-1 |
| SLES 15 SP4 | libsoup2 | 2.74.2-150400.3.6.1 | SUSE-SU-2026:3936-1, SUSE-SU-2025:1509-1 |
| SLES 15 SP3 | libsoup | 2.68.4-150200.4.6.1 | SUSE-SU-2025:1519-1 |
Show 16 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | libsoup | 2.62.2-5.12.1 | SUSE-SU-2025:1518-1 |
| SLES for SAP 15 SP5 | libsoup | 3.0.4-150400.3.7.1 | SUSE-SU-2025:1510-1 |
| SLES for SAP 15 SP5 | libsoup2 | 2.74.2-150400.3.6.1 | SUSE-SU-2026:3936-1, SUSE-SU-2025:1509-1 |
| SLES for SAP 15 SP4 | libsoup | 3.0.4-150400.3.7.1 | SUSE-SU-2025:1510-1 |
| SLES for SAP 15 SP4 | libsoup2 | 2.74.2-150400.3.6.1 | SUSE-SU-2026:3936-1, SUSE-SU-2025:1509-1 |
| SLES for SAP 15 SP3 | libsoup | 2.68.4-150200.4.6.1 | SUSE-SU-2025:1519-1 |
| SLE Micro 6.1 | libsoup | 3.4.4-slfo.1.1_3.1 | SUSE-SU-2025:20446-1 |
| SLE Micro 6.0 | libsoup | 3.4.2-6.1 | SUSE-SU-2025:20375-1 |
| SLE Micro 5.5 | libsoup2 | 2.74.2-150400.3.6.1 | SUSE-SU-2026:3936-1, SUSE-SU-2025:1509-1 |
| SLE Micro 5.4 | libsoup2 | 2.74.2-150400.3.6.1 | SUSE-SU-2026:3936-1, SUSE-SU-2025:1509-1 |
| SLE Micro 5.3 | libsoup2 | 2.74.2-150400.3.6.1 | SUSE-SU-2026:3936-1, SUSE-SU-2025:1509-1 |
| SLE Micro 5.2 | libsoup | 2.68.4-150200.4.6.1 | SUSE-SU-2025:1519-1 |
| SLE HPC 15 SP5 | libsoup | 3.0.4-150400.3.7.1 | SUSE-SU-2025:1510-1 |
| SLE HPC 15 SP5 | libsoup2 | 2.74.2-150400.3.6.1 | SUSE-SU-2026:3936-1, SUSE-SU-2025:1509-1 |
| SLE HPC 15 SP4 | libsoup | 3.0.4-150400.3.7.1 | SUSE-SU-2025:1510-1 |
| SLE HPC 15 SP4 | libsoup2 | 2.74.2-150400.3.6.1 | SUSE-SU-2026:3936-1, SUSE-SU-2025:1509-1 |
| SLE HPC 15 SP3 | libsoup | 2.68.4-150200.4.6.1 | SUSE-SU-2025:1519-1 |
| SUSE Manager Server 4.3 | libsoup | 3.0.4-150400.3.7.1 | SUSE-SU-2025:1510-1 |
| SUSE Manager Server 4.3 | libsoup2 | 2.74.2-150400.3.6.1 | SUSE-SU-2025:1509-1 |
| SUSE Manager Proxy 4.3 | libsoup | 3.0.4-150400.3.7.1 | SUSE-SU-2025:1510-1 |
| SUSE Manager Proxy 4.3 | libsoup2 | 2.74.2-150400.3.6.1 | SUSE-SU-2025:1509-1 |
| SUSE Enterprise Storage 7.1 | libsoup | 2.68.4-150200.4.6.1 | SUSE-SU-2025:1519-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libsoup2 | 2.74.3-9.1 | openSUSE-SU-2025:15044-1 |
| openSUSE Leap 15.6 | libsoup | 3.4.4-150600.3.7.1 | SUSE-SU-2025:1504-1 |
| openSUSE Leap 15.6 | libsoup2 | 2.74.3-150600.4.6.1 | SUSE-SU-2025:1503-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | libsoup3 +2 | 3.6.5-47.amzn2023 | ALAS2023-2025-941 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | libsoup | 3.4.4-6 | — |
| Azure Linux 2 (CBL-Mariner) | libsoup | 3.0.4-6 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | libsoup3 +2 | 3.6.5-3.el10_0.6 | ELSA-2025-7505 |
| Oracle Linux 9 | libsoup +1 | 2.72.0-10.el9_6.1 | ELSA-2025-7436 |
| Oracle Linux 8 | libsoup +1 | 2.62.3-8.el8_10 | ELSA-2025-4560 |
Advisories 33
- ALSA-2025:7505 Important: libsoup3 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:7436 Important: libsoup security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:4560 Important: libsoup security update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2025-0935 Red Hat Enterprise Linux (libsoup): Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 19, 2026
- RHSA-2025:7505 Red Hat Security Advisory: libsoup3 security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:7436 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:4609 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:4624 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:4560 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:4568 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:4538 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:4508 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:4439 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:4440 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- SUSE-SU-2026:3936-1 Security update for libsoup2 SUSE / openSUSE Security Updates · Sep 10, 2026
- USN-7490-1 libsoup2.4 vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- USN-7490-3 libsoup3 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- openSUSE-SU-2025:15044-1 libsoup-2_4-1-2.74.3-9.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20446-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20375-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:01504-1 Security update for libsoup SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:1504-1 Security update for libsoup SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:1518-1 Security update for libsoup SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:1519-1 Security update for libsoup SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:1510-1 Security update for libsoup SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:1509-1 Security update for libsoup2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:01503-1 Security update for libsoup2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:1503-1 Security update for libsoup2 SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2023-2025-941 Important: libsoup3 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Oct 2, 2025
- RLSA-2025:4560 Important: libsoup security update Rocky Linux Security Advisories · Jul 29, 2025
- ELSA-2025-7505 Important: libsoup3 security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jun 30, 2025
- ELSA-2025-7436 Important: libsoup security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 22, 2025
- ELSA-2025-4560 Important: libsoup security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 6, 2025
References
- RHSA-2025:4439 vendor-advisory
- RHSA-2025:4440 vendor-advisory
- RHSA-2025:4508 vendor-advisory
- RHSA-2025:4538 vendor-advisory
- RHSA-2025:4560 vendor-advisory
- RHSA-2025:4568 vendor-advisory
- RHSA-2025:4609 vendor-advisory
- RHSA-2025:4624 vendor-advisory
- RHSA-2025:7436 vendor-advisory
- RHSA-2025:7505 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2025-46421 vdb-entry
- RHBZ#2361962 issue-tracking
- https://gitlab.gnome.org/GNOME/libsoup/-/issues/439