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openSUSE 15.4 curl Important Security Update 2026-0911-1 CVE-2026-1965

opensuse
Calendar Grey March 18, 2026
Dist Opensuse Esm H88
Resolve four important vulnerabilities in curl for openSUSE to enhance system security and stability with critical updates.
An update that solves four vulnerabilities can now be installed.

Description

This update for curl fixes the following issues:

* CVE-2026-1965: bad reuse of HTTP Negotiate connection (bsc#1259362).

* CVE-2026-3783: token leak with redirect and netrc (bsc#1259363).

* CVE-2026-3784: wrong proxy connection reuse with credentials (bsc#1259364).

* CVE-2026-3805: use after free in SMB connection reuse (bsc#1259365).

Topics%20covered

Topics Covered

security advisory important threat mitigation patching curl OpenSUSE

Patch

## 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 LTSS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-911=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-911=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-911=1

* SUSE Linux Enterprise Server 15 SP4 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-911=1

* SUSE Linux Enterprise Server 15 SP5 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-911=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP4

zypper in -t patch SUSE-SLE-INSTALLER-15-SP4-2026-911=1 SUSE-SLE-Product-

SLES_SAP-15-SP4-2026-911=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP5

zy...

Read the Full Advisory

Package List

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64

x86_64)

* libcurl4-debuginfo-8.14.1-150400.5.80.1

* libcurl4-8.14.1-150400.5.80.1

* curl-debuginfo-8.14.1-150400.5.80.1

* curl-8.14.1-150400.5.80.1

* curl-debugsource-8.14.1-150400.5.80.1

* libcurl-devel-8.14.1-150400.5.80.1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (x86_64)

* libcurl4-32bit-debuginfo-8.14.1-150400.5.80.1

* libcurl4-32bit-8.14.1-150400.5.80.1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64

x86_64)

* libcurl4-debuginfo-8.14.1-150400.5.80.1

* libcurl4-8.14.1-150400.5.80.1

* curl-debuginfo-8.14.1-150400.5.80.1

* curl-8.14.1-150400.5.80.1

* curl-debugsource-8.14.1-150400.5.80.1

* libcurl-devel-8.14.1-150400.5.80.1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (x86_64)

* libcurl4-32bit-debuginfo-8.14.1-150400.5.80.1

* libcurl4-32bit-8.14.1-150400.5.80.1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64

x86_64)

*...

Read the Full Advisory

References

* bsc#1259362

* bsc#1259363

* bsc#1259364

* bsc#1259365

## References:

* https://www.suse.com/security/cve/CVE-2026-1965.html

* https://www.suse.com/security/cve/CVE-2026-3783.html

* https://www.suse.com/security/cve/CVE-2026-3784.html

* https://www.suse.com/security/cve/CVE-2026-3805.html

* https://bugzilla.suse.com/show_bug.cgi?id=1259362

* https://bugzilla.suse.com/show_bug.cgi?id=1259363

* https://bugzilla.suse.com/show_bug.cgi?id=1259364

* https://bugzilla.suse.com/show_bug.cgi?id=1259365

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0911-1
Release Date: 2026-03-17T19:57:02Z
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

Topics%20covered

Topics Covered

security advisory important threat mitigation patching curl OpenSUSE

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