Description
A flaw was found in the cookie date handling logic of the libsoup HTTP library, widely used by GNOME and other applications for web communication. When processing cookies with specially crafted expiration dates, the library may perform an out-of-bounds memory read. This flaw could result in unintended disclosure of memory contents, potentially exposing sensitive information from the process using libsoup.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | libsoup | ≤ 3.6.5 | — |
| 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 8.4 Extended Update Support Long-Life Add-On | — | — |
| 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 Update Services for SAP Solutions | — | — |
| 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 Update Services for SAP Solutions | — | — |
| 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 | No fix yet | — |
| Debian 12 | libsoup3 | No fix yet | — |
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 | — |
| Ubuntu 24.04 LTS | libsoup3 | 3.4.4-5ubuntu0.5 | — |
| Ubuntu 22.04 LTS | libsoup2.4 | 2.74.2-3ubuntu0.6 | — |
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 | — |
| Ubuntu Pro 20.04 LTS | libsoup2.4 | 2.70.0-1ubuntu0.5+esm1 | — |
| Ubuntu Pro 18.04 LTS | libsoup2.4 | 2.62.1-1ubuntu0.4+esm6 | — |
| Ubuntu Pro 16.04 LTS | libsoup2.4 | 2.52.2-1ubuntu0.3+esm5 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | libsoup3 +2 | 3.6.5-3.el10_0.7 | RHSA-2025:21032, RHSA-2025:18183 |
| RHEL 9 | libsoup +1 | 2.72.0-10.el9_6.3 | RHSA-2025:20959, RHSA-2025:19713 |
| RHEL 8 | libsoup +1 | 2.62.3-10.el8_10 | RHSA-2025:19714 |
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_4.6 | RHSA-2025:21666 |
| RHEL 9.2 E4S | libsoup +1 | 2.72.0-8.el9_2.6 | RHSA-2025:21655 |
| RHEL 9.0 E4S | libsoup +1 | 2.72.0-8.el9_0.6 | RHSA-2025:21656 |
| RHEL 8.8 E4S | libsoup +1 | 2.62.3-3.el8_8.6 | RHSA-2025:21665 |
| RHEL 8.6 TUS | libsoup +1 | 2.62.3-2.el8_6.6 | RHSA-2025:21664 |
| RHEL 8.6 E4S | libsoup +1 | 2.62.3-2.el8_6.6 | RHSA-2025:21664 |
| RHEL 8.6 AUS | libsoup +1 | 2.62.3-2.el8_6.6 | RHSA-2025:21664 |
| RHEL 8.4 EUS Long Life | libsoup +1 | 2.62.3-2.el8_4.6 | RHSA-2025:21772 |
| RHEL 8.4 AUS | libsoup +1 | 2.62.3-2.el8_4.6 | RHSA-2025:21772 |
| RHEL 8.2 AUS | libsoup +1 | 2.62.3-1.el8_2.6 | RHSA-2025:22013 |
| RHEL 7 ELS | libsoup +1 | 2.62.2-9.el7_9 | RHSA-2025:21657 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | libsoup3 +1 | 3.6.5-3.el10_1.6 | ALSA-2025:21032 |
| AlmaLinux 10 | libsoup3-doc | 3.6.5-3.el10_0.7 | ALSA-2025:21032, ALSA-2025:18183 |
| AlmaLinux 9 | libsoup +1 | 2.72.0-12.el9_7.1 | ALSA-2025:20959 |
| AlmaLinux 8 | libsoup +1 | 2.62.3-10.el8_10 | ALSA-2025:19714 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | libsoup3 | 3.6.5-3.el10_0.7 | RLSA-2025:21032, RLSA-2025:18183 |
| Rocky Linux 9 | libsoup | 2.72.0-10.el9_6.3 | RLSA-2025:20959, RLSA-2025:19713 |
| Rocky Linux 8 | libsoup | 2.62.3-10.el8_10 | RLSA-2025:19714 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | libsoup | 3.4.4-150600.3.18.1 | SUSE-SU-2025:3753-1 |
| SLES 15 SP6 | libsoup | 3.4.4-150600.3.18.1 | SUSE-SU-2025:3753-1 |
| SLES 15 SP5 | libsoup | 3.0.4-150400.3.18.1 | SUSE-SU-2025:3752-1 |
| SLES 15 SP4 | libsoup | 3.0.4-150400.3.18.1 | SUSE-SU-2025:3752-1 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | libsoup | 3.6.5-160000.3.1 | SUSE-SU-2026:20212-1 |
| SLES for SAP 15 SP5 | libsoup | 3.0.4-150400.3.18.1 | SUSE-SU-2025:3752-1 |
| SLES for SAP 15 SP4 | libsoup | 3.0.4-150400.3.18.1 | SUSE-SU-2025:3752-1 |
| SLES 16.0 | libsoup | 3.6.5-160000.3.1 | SUSE-SU-2026:20212-1 |
| SLE Micro 6.2 | libsoup | 3.6.5-160000.3.1 | SUSE-SU-2026:20205-1 |
| SLE Micro 6.1 | libsoup | 3.4.4-slfo.1.1_5.1 | SUSE-SU-2025:20965-1 |
| SLE Micro 6.0 | libsoup | 3.4.2-9.1 | SUSE-SU-2025:20937-1 |
| SLE HPC 15 SP5 | libsoup | 3.0.4-150400.3.18.1 | SUSE-SU-2025:3752-1 |
| SLE HPC 15 SP4 | libsoup | 3.0.4-150400.3.18.1 | SUSE-SU-2025:3752-1 |
| SUSE Manager Server LTS 4.3 | libsoup | 3.0.4-150400.3.18.1 | SUSE-SU-2025:3752-1 |
| SUSE Manager Proxy LTS 4.3 | libsoup | 3.0.4-150400.3.18.1 | SUSE-SU-2025:3752-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libsoup | 3.6.5-7.1 | openSUSE-SU-2025:15633-1 |
| openSUSE Leap 16.0 | libsoup | 3.6.5-160000.3.1 | openSUSE-SU-2026:20142-1 |
| openSUSE Leap 15.6 | libsoup | 3.4.4-150600.3.18.1 | SUSE-SU-2025:3753-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | libsoup3 +2 | 3.6.5-53.amzn2023 | ALAS2023-2025-1288 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | libsoup | 3.4.4-10 | — |
| Azure Linux 2 (CBL-Mariner) | libsoup | 3.0.4-10 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | libsoup3 +2 | 3.6.5-3.el10_0.7 | ELSA-2025-21032, ELSA-2025-18183 |
| Oracle Linux 9 | libsoup +1 | 2.72.0-10.el9_6.3 | ELSA-2025-20959, ELSA-2025-19713 |
| Oracle Linux 8 | libsoup +1 | 2.62.3-10.el8_10 | ELSA-2025-19714 |
| Oracle Linux 7 | libsoup +1 | 2.62.2-2.0.7.el7 | ELSA-2025-21657 |
Advisories 40
- ALSA-2025:21032 Important: libsoup3 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:20959 Important: libsoup security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:18183 Important: libsoup3 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:19714 Important: libsoup security update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2026-0489 Xerox FreeFlow Print Server: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff BSI CERT-Bund (WID) · Oct 21, 2026
- RHSA-2025:21657 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:22013 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2025:21772 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2025:21666 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2025:21664 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2025:21665 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2025:21655 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2025:21656 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2025:21032 Red Hat Security Advisory: libsoup3 security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2025:20959 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2025:19714 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2025:19713 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2025:18183 Red Hat Security Advisory: libsoup3 security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- WID-SEC-2025-2311 Red Hat Enterprise Linux (libsoup3): Schwachstelle ermöglicht Offenlegung von Informationen BSI CERT-Bund (WID) · Jun 29, 2026
- openSUSE-SU-2026:20142-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15633-1 libsoup-3_0-0-3.6.5-7.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20212-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20205-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20965-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20937-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 23, 2026
- WID-SEC-2026-0389 IBM Power Hardware Management Console: Mehrere Schwachstellen BSI CERT-Bund (WID) · Feb 10, 2026
- SUSE-SU-2025:3753-1 Security update for libsoup SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:3752-1 Security update for libsoup SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2025-21657 Important: libsoup security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Dec 10, 2025
- ALAS2023-2025-1288 Important: libsoup3 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Dec 8, 2025
- ELSA-2025-21032 Important: libsoup3 security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Dec 2, 2025
- ELSA-2025-20959 Important: libsoup security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 25, 2025
- RLSA-2025:21032 Important: libsoup3 security update Rocky Linux Security Advisories · Nov 21, 2025
- RLSA-2025:20959 Important: libsoup security update Rocky Linux Security Advisories · Nov 21, 2025
- RLSA-2025:19713 Important: libsoup security update Rocky Linux Security Advisories · Nov 6, 2025
- RLSA-2025:19714 Important: libsoup security update Rocky Linux Security Advisories · Nov 5, 2025
- ELSA-2025-19713 Important: libsoup security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 4, 2025
- ELSA-2025-19714 Important: libsoup security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 4, 2025
- RLSA-2025:18183 Important: libsoup3 security update Rocky Linux Security Advisories · Oct 18, 2025
- ELSA-2025-18183 Important: libsoup3 security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Oct 16, 2025
References
- RHSA-2025:18183 vendor-advisory
- RHSA-2025:19713 vendor-advisory
- RHSA-2025:19714 vendor-advisory
- RHSA-2025:20959 vendor-advisory
- RHSA-2025:21032 vendor-advisory
- RHSA-2025:21655 vendor-advisory
- RHSA-2025:21656 vendor-advisory
- RHSA-2025:21657 vendor-advisory
- RHSA-2025:21664 vendor-advisory
- RHSA-2025:21665 vendor-advisory
- RHSA-2025:21666 vendor-advisory
- RHSA-2025:21772 vendor-advisory
- RHSA-2025:22013 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2025-11021 vdb-entry
- RHBZ#2399627 issue-tracking
- https://gitlab.gnome.org/GNOME/libsoup/-/issues/459