SUSE-SU-2026:1717-1: important: Security update for curl
SLE-SECURITY-UPDATES
null at suse.de
Wed May 6 20:34:10 UTC 2026
# Security update for curl
Announcement ID: SUSE-SU-2026:1717-1
Release Date: 2026-05-06T12:14:02Z
Rating: important
References:
* bsc#1259362
* bsc#1262631
* bsc#1262632
* bsc#1262635
* bsc#1262636
* bsc#1262638
Cross-References:
* CVE-2026-1965
* CVE-2026-4873
* CVE-2026-5545
* CVE-2026-6253
* CVE-2026-6276
* CVE-2026-6429
CVSS scores:
* CVE-2026-1965 ( SUSE ): 6.9
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
* CVE-2026-1965 ( SUSE ): 7.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
* CVE-2026-1965 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
* CVE-2026-4873 ( SUSE ): 6.3
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
* CVE-2026-4873 ( SUSE ): 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
* CVE-2026-5545 ( SUSE ): 8.3
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
* CVE-2026-5545 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
* CVE-2026-6253 ( SUSE ): 8.2
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
* CVE-2026-6253 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
* CVE-2026-6276 ( SUSE ): 6.3
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
* CVE-2026-6276 ( SUSE ): 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
* CVE-2026-6429 ( SUSE ): 8.2
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
* CVE-2026-6429 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products:
* openSUSE Leap 15.4
* SUSE Linux Enterprise Desktop 15 SP4
* SUSE Linux Enterprise Desktop 15 SP5
* SUSE Linux Enterprise High Performance Computing 15 SP4
* SUSE Linux Enterprise High Performance Computing 15 SP5
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
* SUSE Linux Enterprise Micro 5.3
* SUSE Linux Enterprise Micro 5.4
* SUSE Linux Enterprise Micro 5.5
* SUSE Linux Enterprise Micro for Rancher 5.3
* SUSE Linux Enterprise Micro for Rancher 5.4
* SUSE Linux Enterprise Server 15 SP4
* SUSE Linux Enterprise Server 15 SP4 LTSS
* SUSE Linux Enterprise Server 15 SP5
* SUSE Linux Enterprise Server 15 SP5 LTSS
* SUSE Linux Enterprise Server for SAP Applications 15 SP4
* SUSE Linux Enterprise Server for SAP Applications 15 SP5
* SUSE Manager Proxy 4.3
* SUSE Manager Retail Branch Server 4.3
* SUSE Manager Server 4.3
An update that solves six vulnerabilities can now be installed.
## Description:
This update for curl fixes the following issues:
Security issues fixed:
* CVE-2026-4873: connection reuse ignores TLS requirement (bsc#1262631).
* CVE-2026-5545: wrong reuse of HTTP Negotiate connection (bsc#1262632).
* CVE-2026-6253: proxy credentials leak over redirect-to proxy (bsc#1262635).
* CVE-2026-6276: stale custom cookie host causes cookie leak (bsc#1262636).
* CVE-2026-6429: netrc credential leak with reused proxy connection
(bsc#1262638).
Other updates and bugfixes:
* sws: prevent "connection monitor" to say disconnect twice (bsc#1259362).
## Patch Instructions:
To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
* SUSE Linux Enterprise High Performance Computing 15 SP5
zypper in -t patch SUSE-SLE-INSTALLER-15-SP5-2026-1717=1
* SUSE Linux Enterprise Server 15 SP5
zypper in -t patch SUSE-SLE-INSTALLER-15-SP5-2026-1717=1
* SUSE Linux Enterprise Server for SAP Applications 15 SP5
zypper in -t patch SUSE-SLE-INSTALLER-15-SP5-2026-1717=1 SUSE-SLE-Product-
SLES_SAP-15-SP5-2026-1717=1
* SUSE Linux Enterprise Desktop 15 SP5
zypper in -t patch SUSE-SLE-INSTALLER-15-SP5-2026-1717=1
* SUSE Linux Enterprise Micro for Rancher 5.3
zypper in -t patch SUSE-SLE-Micro-5.3-2026-1717=1
* SUSE Linux Enterprise Micro 5.3
zypper in -t patch SUSE-SLE-Micro-5.3-2026-1717=1
* SUSE Linux Enterprise Micro for Rancher 5.4
zypper in -t patch SUSE-SLE-Micro-5.4-2026-1717=1
* SUSE Linux Enterprise Micro 5.4
zypper in -t patch SUSE-SLE-Micro-5.4-2026-1717=1
* SUSE Linux Enterprise Micro 5.5
zypper in -t patch SUSE-SLE-Micro-5.5-2026-1717=1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-1717=1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-1717=1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-1717=1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-1717=1
* SUSE Linux Enterprise Server 15 SP4 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-1717=1
* SUSE Linux Enterprise Server 15 SP5 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-1717=1
* SUSE Linux Enterprise Server for SAP Applications 15 SP4
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-1717=1 SUSE-SLE-
INSTALLER-15-SP4-2026-1717=1
* openSUSE Leap 15.4
zypper in -t patch SUSE-2026-1717=1
* SUSE Linux Enterprise High Performance Computing 15 SP4
zypper in -t patch SUSE-SLE-INSTALLER-15-SP4-2026-1717=1
* SUSE Linux Enterprise Server 15 SP4
zypper in -t patch SUSE-SLE-INSTALLER-15-SP4-2026-1717=1
* SUSE Manager Server 4.3
zypper in -t patch SUSE-SLE-INSTALLER-15-SP4-2026-1717=1
* SUSE Linux Enterprise Desktop 15 SP4
zypper in -t patch SUSE-SLE-INSTALLER-15-SP4-2026-1717=1
* SUSE Manager Retail Branch Server 4.3
zypper in -t patch SUSE-SLE-INSTALLER-15-SP4-2026-1717=1
* SUSE Manager Proxy 4.3
zypper in -t patch SUSE-SLE-INSTALLER-15-SP4-2026-1717=1
## Package List:
* SUSE Linux Enterprise High Performance Computing 15 SP5 (aarch64 x86_64)
* libcurl4-8.14.1-150400.5.83.1
* SUSE Linux Enterprise Server 15 SP5 (aarch64 ppc64le s390x x86_64)
* libcurl4-8.14.1-150400.5.83.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
* libcurl-devel-8.14.1-150400.5.83.1
* libcurl4-8.14.1-150400.5.83.1
* curl-debugsource-8.14.1-150400.5.83.1
* curl-debuginfo-8.14.1-150400.5.83.1
* libcurl4-debuginfo-8.14.1-150400.5.83.1
* curl-8.14.1-150400.5.83.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP5 (x86_64)
* libcurl4-32bit-debuginfo-8.14.1-150400.5.83.1
* libcurl4-32bit-8.14.1-150400.5.83.1
* SUSE Linux Enterprise Desktop 15 SP5 (x86_64)
* libcurl4-8.14.1-150400.5.83.1
* SUSE Linux Enterprise Micro for Rancher 5.3 (aarch64 s390x x86_64)
* libcurl4-8.14.1-150400.5.83.1
* curl-debugsource-8.14.1-150400.5.83.1
* curl-debuginfo-8.14.1-150400.5.83.1
* libcurl4-debuginfo-8.14.1-150400.5.83.1
* curl-8.14.1-150400.5.83.1
* SUSE Linux Enterprise Micro 5.3 (aarch64 s390x x86_64)
* libcurl4-8.14.1-150400.5.83.1
* curl-debugsource-8.14.1-150400.5.83.1
* curl-debuginfo-8.14.1-150400.5.83.1
* libcurl4-debuginfo-8.14.1-150400.5.83.1
* curl-8.14.1-150400.5.83.1
* SUSE Linux Enterprise Micro for Rancher 5.4 (aarch64 s390x x86_64)
* libcurl4-8.14.1-150400.5.83.1
* curl-debugsource-8.14.1-150400.5.83.1
* curl-debuginfo-8.14.1-150400.5.83.1
* libcurl4-debuginfo-8.14.1-150400.5.83.1
* curl-8.14.1-150400.5.83.1
* SUSE Linux Enterprise Micro 5.4 (aarch64 s390x x86_64)
* libcurl4-8.14.1-150400.5.83.1
* curl-debugsource-8.14.1-150400.5.83.1
* curl-debuginfo-8.14.1-150400.5.83.1
* libcurl4-debuginfo-8.14.1-150400.5.83.1
* curl-8.14.1-150400.5.83.1
* SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64)
* libcurl4-8.14.1-150400.5.83.1
* curl-debugsource-8.14.1-150400.5.83.1
* curl-debuginfo-8.14.1-150400.5.83.1
* libcurl4-debuginfo-8.14.1-150400.5.83.1
* curl-8.14.1-150400.5.83.1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64
x86_64)
* libcurl-devel-8.14.1-150400.5.83.1
* libcurl4-8.14.1-150400.5.83.1
* curl-debugsource-8.14.1-150400.5.83.1
* curl-debuginfo-8.14.1-150400.5.83.1
* libcurl4-debuginfo-8.14.1-150400.5.83.1
* curl-8.14.1-150400.5.83.1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (x86_64)
* libcurl4-32bit-debuginfo-8.14.1-150400.5.83.1
* libcurl4-32bit-8.14.1-150400.5.83.1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64
x86_64)
* libcurl-devel-8.14.1-150400.5.83.1
* libcurl4-8.14.1-150400.5.83.1
* curl-debugsource-8.14.1-150400.5.83.1
* curl-debuginfo-8.14.1-150400.5.83.1
* libcurl4-debuginfo-8.14.1-150400.5.83.1
* curl-8.14.1-150400.5.83.1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (x86_64)
* libcurl4-32bit-debuginfo-8.14.1-150400.5.83.1
* libcurl4-32bit-8.14.1-150400.5.83.1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64
x86_64)
* libcurl-devel-8.14.1-150400.5.83.1
* libcurl4-8.14.1-150400.5.83.1
* curl-debugsource-8.14.1-150400.5.83.1
* curl-debuginfo-8.14.1-150400.5.83.1
* libcurl4-debuginfo-8.14.1-150400.5.83.1
* curl-8.14.1-150400.5.83.1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (x86_64)
* libcurl4-32bit-debuginfo-8.14.1-150400.5.83.1
* libcurl4-32bit-8.14.1-150400.5.83.1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64
x86_64)
* libcurl-devel-8.14.1-150400.5.83.1
* libcurl4-8.14.1-150400.5.83.1
* curl-debugsource-8.14.1-150400.5.83.1
* curl-debuginfo-8.14.1-150400.5.83.1
* libcurl4-debuginfo-8.14.1-150400.5.83.1
* curl-8.14.1-150400.5.83.1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (x86_64)
* libcurl4-32bit-debuginfo-8.14.1-150400.5.83.1
* libcurl4-32bit-8.14.1-150400.5.83.1
* SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64)
* libcurl-devel-8.14.1-150400.5.83.1
* libcurl4-8.14.1-150400.5.83.1
* curl-debugsource-8.14.1-150400.5.83.1
* curl-debuginfo-8.14.1-150400.5.83.1
* libcurl4-debuginfo-8.14.1-150400.5.83.1
* curl-8.14.1-150400.5.83.1
* SUSE Linux Enterprise Server 15 SP4 LTSS (x86_64)
* libcurl4-32bit-debuginfo-8.14.1-150400.5.83.1
* libcurl4-32bit-8.14.1-150400.5.83.1
* SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
* libcurl-devel-8.14.1-150400.5.83.1
* libcurl4-8.14.1-150400.5.83.1
* curl-debugsource-8.14.1-150400.5.83.1
* curl-debuginfo-8.14.1-150400.5.83.1
* libcurl4-debuginfo-8.14.1-150400.5.83.1
* curl-8.14.1-150400.5.83.1
* SUSE Linux Enterprise Server 15 SP5 LTSS (x86_64)
* libcurl4-32bit-debuginfo-8.14.1-150400.5.83.1
* libcurl4-32bit-8.14.1-150400.5.83.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)
* libcurl-devel-8.14.1-150400.5.83.1
* libcurl4-8.14.1-150400.5.83.1
* curl-debugsource-8.14.1-150400.5.83.1
* curl-debuginfo-8.14.1-150400.5.83.1
* libcurl4-debuginfo-8.14.1-150400.5.83.1
* curl-8.14.1-150400.5.83.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP4 (x86_64)
* libcurl4-32bit-debuginfo-8.14.1-150400.5.83.1
* libcurl4-32bit-8.14.1-150400.5.83.1
* openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586)
* libcurl-devel-8.14.1-150400.5.83.1
* curl-mini-debugsource-8.14.1-150400.5.83.1
* libcurl4-8.14.1-150400.5.83.1
* curl-debugsource-8.14.1-150400.5.83.1
* curl-debuginfo-8.14.1-150400.5.83.1
* libcurl-mini4-debuginfo-8.14.1-150400.5.83.1
* libcurl-mini4-8.14.1-150400.5.83.1
* libcurl4-debuginfo-8.14.1-150400.5.83.1
* curl-8.14.1-150400.5.83.1
* openSUSE Leap 15.4 (noarch)
* curl-zsh-completion-8.14.1-150400.5.83.1
* curl-fish-completion-8.14.1-150400.5.83.1
* libcurl-devel-doc-8.14.1-150400.5.83.1
* openSUSE Leap 15.4 (x86_64)
* libcurl4-32bit-debuginfo-8.14.1-150400.5.83.1
* libcurl4-32bit-8.14.1-150400.5.83.1
* libcurl-devel-32bit-8.14.1-150400.5.83.1
* openSUSE Leap 15.4 (aarch64_ilp32)
* libcurl4-64bit-8.14.1-150400.5.83.1
* libcurl-devel-64bit-8.14.1-150400.5.83.1
* libcurl4-64bit-debuginfo-8.14.1-150400.5.83.1
* SUSE Linux Enterprise High Performance Computing 15 SP4 (aarch64 x86_64)
* libcurl4-8.14.1-150400.5.83.1
* SUSE Linux Enterprise Server 15 SP4 (aarch64 ppc64le s390x x86_64)
* libcurl4-8.14.1-150400.5.83.1
* SUSE Manager Server 4.3 (ppc64le s390x x86_64)
* libcurl4-8.14.1-150400.5.83.1
* SUSE Linux Enterprise Desktop 15 SP4 (x86_64)
* libcurl4-8.14.1-150400.5.83.1
* SUSE Manager Retail Branch Server 4.3 (x86_64)
* libcurl4-8.14.1-150400.5.83.1
* SUSE Manager Proxy 4.3 (x86_64)
* libcurl4-8.14.1-150400.5.83.1
## References:
* https://www.suse.com/security/cve/CVE-2026-1965.html
* https://www.suse.com/security/cve/CVE-2026-4873.html
* https://www.suse.com/security/cve/CVE-2026-5545.html
* https://www.suse.com/security/cve/CVE-2026-6253.html
* https://www.suse.com/security/cve/CVE-2026-6276.html
* https://www.suse.com/security/cve/CVE-2026-6429.html
* https://bugzilla.suse.com/show_bug.cgi?id=1259362
* https://bugzilla.suse.com/show_bug.cgi?id=1262631
* https://bugzilla.suse.com/show_bug.cgi?id=1262632
* https://bugzilla.suse.com/show_bug.cgi?id=1262635
* https://bugzilla.suse.com/show_bug.cgi?id=1262636
* https://bugzilla.suse.com/show_bug.cgi?id=1262638
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