SUSE-SU-2026:3814-1: important: Security update for curl

Wed Aug 26 16:49:26 UTC 2026

# Security update for curl

Announcement ID: SUSE-SU-2026:3814-1  
Release Date: 2026-08-26T10:56:40Z  
Rating: important  
References:

  * bsc#1263440
  * bsc#1268402
  * bsc#1268407
  * bsc#1268409
  * bsc#1268420
  * bsc#1268422

Cross-References:

  * CVE-2026-10536
  * CVE-2026-7168
  * CVE-2026-8286
  * CVE-2026-8458
  * CVE-2026-8924
  * CVE-2026-9547

CVSS scores:

  * CVE-2026-10536 ( SUSE ):  6.8
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-10536 ( SUSE ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-10536 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-7168 ( SUSE ):  6.0
    CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-7168 ( SUSE ):  5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-7168 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  * CVE-2026-7168 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  * CVE-2026-8286 ( SUSE ):  9.1
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-8286 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-8286 ( NVD ):  8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-8458 ( SUSE ):  2.3
    CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-8458 ( SUSE ):  4.2 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-8458 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
  * CVE-2026-8924 ( SUSE ):  8.6
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-8924 ( SUSE ):  8.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
  * CVE-2026-8924 ( NVD ):  9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-9547 ( SUSE ):  9.1
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-9547 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-9547 ( NVD ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected Products:

  * SUSE Linux Enterprise High Performance Computing 12 SP5
  * SUSE Linux Enterprise Server 12 SP5
  * SUSE Linux Enterprise Server 12 SP5 LTSS
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  * SUSE Linux Enterprise Server for SAP Applications 12 SP5

An update that solves six vulnerabilities can now be installed.

## Description:

This update for curl fixes the following issues:

  * CVE-2026-7168: cross-proxy Digest auth state leak (bsc#1263440).
  * CVE-2026-8286: wrong STARTTLS connection reuse (bsc#1268402).
  * CVE-2026-8458: wrong reuse for different services (bsc#1268407).
  * CVE-2026-8924: traling dot domain super cookie (bsc#1268409).
  * CVE-2026-9547: SSH improper host validation (bsc#1268420).
  * CVE-2026-10536: HTTP/2 stream-dependency tree UAF (bsc#1268422).

## 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 Server 12 SP5 LTSS  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-3814=1

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-3814=1

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * libcurl4-debuginfo-8.0.1-11.126.1
    * curl-debugsource-8.0.1-11.126.1
    * curl-8.0.1-11.126.1
    * libcurl-devel-8.0.1-11.126.1
    * libcurl4-debuginfo-32bit-8.0.1-11.126.1
    * libcurl4-8.0.1-11.126.1
    * curl-debuginfo-8.0.1-11.126.1
    * libcurl4-32bit-8.0.1-11.126.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * curl-debugsource-8.0.1-11.126.1
    * curl-8.0.1-11.126.1
    * libcurl-devel-8.0.1-11.126.1
    * libcurl4-8.0.1-11.126.1
    * curl-debuginfo-8.0.1-11.126.1
    * libcurl4-debuginfo-8.0.1-11.126.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS (s390x x86_64)
    * libcurl4-debuginfo-32bit-8.0.1-11.126.1
    * libcurl4-32bit-8.0.1-11.126.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-10536.html
  * https://www.suse.com/security/cve/CVE-2026-7168.html
  * https://www.suse.com/security/cve/CVE-2026-8286.html
  * https://www.suse.com/security/cve/CVE-2026-8458.html
  * https://www.suse.com/security/cve/CVE-2026-8924.html
  * https://www.suse.com/security/cve/CVE-2026-9547.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1263440
  * https://bugzilla.suse.com/show_bug.cgi?id=1268402
  * https://bugzilla.suse.com/show_bug.cgi?id=1268407
  * https://bugzilla.suse.com/show_bug.cgi?id=1268409
  * https://bugzilla.suse.com/show_bug.cgi?id=1268420
  * https://bugzilla.suse.com/show_bug.cgi?id=1268422

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