CVE-2025-14523

Libsoup: libsoup: duplicate host header handling causes host-parsing discrepancy (first- vs last-value wins)

CVE-2025-14523 is fixed in 14 products on 1 platform, first by RHSA-2026:0836, released December 11, 2025. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
8.2
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0054
45th percentile

This update for libsoup fixes the following issues: - CVE-2026-0716: Fixed out-of-bounds read for websocket (bsc#1256418) - CVE-2026-0719: Fixed overflow for password md4sum (bsc#1256399) - CVE-2025-14523: Reject duplicated Host in headers and followed upstream update (bsc#1254876).

Where it's fixed

ProductFixed inFixReleased
Linux
libsoup · RHEL 8 0:2.62.3-11.el8_10 RHSA-2026:0421 Jan 16, 2026
libsoup · RHEL 9 0:2.72.0-12.el9_7.3 RHSA-2026:0422 Jan 16, 2026
libsoup · almalinux 8 2.62.3-11.el8_10 ALSA-2026:0421 Jan 12, 2026
libsoup · almalinux 9 2.72.0-12.el9_7.3 ALSA-2026:0422 Jan 12, 2026
libsoup · amzn 2023 2.72.0-6.amzn2023.0.10 ALAS2023-2026-1391 Feb 5, 2026
libsoup · ol 8 0:2.62.3-11.el8_10 ELSA-2026-0421 Jan 12, 2026
libsoup · ol 9 0:2.72.0-12.el9_7.3 ELSA-2026-0422 Jan 12, 2026
libsoup · opensuse-leap 15.6 3.4.4-150600.3.28.1 SUSE-SU-2026:0257-1 Jan 22, 2026
libsoup · opensuse-leap 16.0 3.6.6-160000.1.1 OPENSUSE-SU-2026:20384-1 Mar 18, 2026
libsoup · rocky 8 0:2.62.3-11.el8_10 RLSA-2026:0421 Jan 14, 2026
libsoup · rocky 9 0:2.72.0-12.el9_7.3 RLSA-2026:0422 Jan 15, 2026
libsoup · sles 15.6 3.4.4-150600.3.28.1 SUSE-SU-2026:0257-1 Jan 22, 2026
libsoup · sles 15.7 3.4.4-150600.3.28.1 SUSE-SU-2026:0257-1 Jan 22, 2026
libsoup · sles 16.0 3.6.6-160000.1.1 SUSE-SU-2026:20902-1 Mar 18, 2026
libsoup-debuginfo · amzn 2023 2.72.0-6.amzn2023.0.10 ALAS2023-2026-1391 Feb 5, 2026
libsoup-debugsource · amzn 2023 2.72.0-6.amzn2023.0.10 ALAS2023-2026-1391 Feb 5, 2026
libsoup-devel · RHEL 8 0:2.62.3-11.el8_10 RHSA-2026:0421 Jan 16, 2026
libsoup-devel · RHEL 9 0:2.72.0-12.el9_7.3 RHSA-2026:0422 Jan 16, 2026
libsoup-devel · almalinux 8 2.62.3-11.el8_10 ALSA-2026:0421 Jan 12, 2026
libsoup-devel · almalinux 9 2.72.0-12.el9_7.3 ALSA-2026:0422 Jan 12, 2026
libsoup-devel · amzn 2023 2.72.0-6.amzn2023.0.10 ALAS2023-2026-1391 Feb 5, 2026
libsoup-devel · ol 8 0:2.62.3-11.el8_10 ELSA-2026-0421 Jan 12, 2026
libsoup-devel · ol 9 0:2.72.0-12.el9_7.3 ELSA-2026-0422 Jan 12, 2026
libsoup-doc · amzn 2023 2.72.0-6.amzn2023.0.10 ALAS2023-2026-1391 Feb 5, 2026
libsoup2 · opensuse-leap 15.6 2.74.3-150600.4.19.1 SUSE-SU-2026:0253-1 Jan 22, 2026
libsoup2 · opensuse-leap 16.0 2.74.3-160000.4.1 OPENSUSE-SU-2026:20354-1 Mar 13, 2026
libsoup2 · sles 15.6 2.74.3-150600.4.19.1 SUSE-SU-2026:0253-1 Jan 22, 2026
libsoup2 · sles 15.7 2.74.3-150600.4.19.1 SUSE-SU-2026:0253-1 Jan 22, 2026
libsoup3 · RHEL 10 3.6.5-3.el10_0.11 RHSA-2026:0836 Dec 11, 2025
libsoup3 · amzn 2023 3.6.5-55.amzn2023 ALAS2023-2026-1394 Feb 5, 2026
libsoup3 · ol 10 0:3.6.5-3.el10_1.8 ELSA-2026-0423 Jan 12, 2026
libsoup3 · rocky 10 0:3.6.5-3.el10_1.8 RLSA-2026:0423 Jan 15, 2026
libsoup3-debuginfo · amzn 2023 3.6.5-55.amzn2023 ALAS2023-2026-1394 Feb 5, 2026
libsoup3-debugsource · amzn 2023 3.6.5-55.amzn2023 ALAS2023-2026-1394 Feb 5, 2026
libsoup3-devel · amzn 2023 3.6.5-55.amzn2023 ALAS2023-2026-1394 Feb 5, 2026
libsoup3-devel · ol 10 0:3.6.5-3.el10_1.8 ELSA-2026-0423 Jan 12, 2026
libsoup3-doc · almalinux 10 3.6.5-3.el10_1.8 ALSA-2026:0423 Jan 12, 2026
libsoup3-doc · amzn 2023 3.6.5-55.amzn2023 ALAS2023-2026-1394 Feb 5, 2026
libsoup3-doc · ol 10 0:3.6.5-3.el10_1.8 ELSA-2026-0423 Jan 12, 2026
spice-client-win · rocky 8 0:8.10-6.el8_10.1 RLSA-2026:1509 Jan 30, 2026
spice-client-win-x64 · RHEL 8 0:8.10-6.el8_10.1 RHSA-2026:1509 Jan 28, 2026
spice-client-win-x86 · RHEL 8 0:8.10-6.el8_10.1 RHSA-2026:1509 Jan 28, 2026

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