SUSE-SU-2026:3102-1: important: Security update for go1.26-openssl

SLE-UPDATES null at suse.de
Fri Jul 17 20:32:06 UTC 2026 

# Security update for go1.26-openssl

Announcement ID: SUSE-SU-2026:3102-1  
Release Date: 2026-07-17T13:10:42Z  
Rating: important  
References:

  * bsc#1245878
  * bsc#1255111
  * bsc#1264395
  * bsc#1267442
  * bsc#1267444
  * bsc#1267450
  * bsc#1271014
  * bsc#1271015
  * jsc#PED-1962
  * jsc#SLE-18320

  
Cross-References:

  * CVE-2026-27145
  * CVE-2026-39822
  * CVE-2026-42504
  * CVE-2026-42505
  * CVE-2026-42507

  
CVSS scores:

  * CVE-2026-27145 ( SUSE ):  4.6
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-27145 ( SUSE ):  3.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
  * CVE-2026-27145 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
  * CVE-2026-27145 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39822 ( SUSE ):  7.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
  * CVE-2026-39822 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-42504 ( SUSE ):  6.9
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-42504 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  * CVE-2026-42504 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-42505 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  * CVE-2026-42505 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  * CVE-2026-42507 ( SUSE ):  6.9
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-42507 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-42507 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

  
Affected Products:

  * Development Tools Module 15-SP7
  * openSUSE Leap 15.6
  * SUSE Linux Enterprise Desktop 15 SP7
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server 15 SP6 LTSS
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

  
  
An update that solves five vulnerabilities, contains two features and has three
security fixes can now be installed.

## Description:

This update for go1.26-openssl fixes the following issues

  * Update to version go1.26.5 (bsc#1255111).
  * CVE-2026-27145: crypto/x509: split candidate hostname only once
    (bsc#1267450).
  * CVE-2026-39822: os: Root escape via symlink plus trailing slash
    (bsc#1271014).
  * CVE-2026-42504: mime: quadratic complexity in WordDecoder.DecodeHeader
    (bsc#1267442).
  * CVE-2026-42505: crypto/tls: omit PSK in ECH outer client hello
    (bsc#1271015).
  * CVE-2026-42507: net/textproto: arbitrary input are included in errors
    without any escaping (bsc#1267444).

## 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:

  * openSUSE Leap 15.6  
    zypper in -t patch SUSE-2026-3102=1

  * Development Tools Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP7-2026-3102=1

  * SUSE Linux Enterprise Server 15 SP6 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-3102=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP6  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-3102=1

## Package List:

  * Development Tools Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * go1.26-openssl-doc-1.26.5-150600.13.9.1
    * go1.26-openssl-1.26.5-150600.13.9.1
    * go1.26-openssl-race-1.26.5-150600.13.9.1
  * openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64)
    * go1.26-openssl-race-1.26.5-150600.13.9.1
  * openSUSE Leap 15.6 (aarch64 i586 ppc64le s390x x86_64)
    * go1.26-openssl-doc-1.26.5-150600.13.9.1
    * go1.26-openssl-1.26.5-150600.13.9.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
    * go1.26-openssl-doc-1.26.5-150600.13.9.1
    * go1.26-openssl-1.26.5-150600.13.9.1
    * go1.26-openssl-race-1.26.5-150600.13.9.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
    * go1.26-openssl-doc-1.26.5-150600.13.9.1
    * go1.26-openssl-1.26.5-150600.13.9.1
    * go1.26-openssl-race-1.26.5-150600.13.9.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-27145.html
  * https://www.suse.com/security/cve/CVE-2026-39822.html
  * https://www.suse.com/security/cve/CVE-2026-42504.html
  * https://www.suse.com/security/cve/CVE-2026-42505.html
  * https://www.suse.com/security/cve/CVE-2026-42507.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1245878
  * https://bugzilla.suse.com/show_bug.cgi?id=1255111
  * https://bugzilla.suse.com/show_bug.cgi?id=1264395
  * https://bugzilla.suse.com/show_bug.cgi?id=1267442
  * https://bugzilla.suse.com/show_bug.cgi?id=1267444
  * https://bugzilla.suse.com/show_bug.cgi?id=1267450
  * https://bugzilla.suse.com/show_bug.cgi?id=1271014
  * https://bugzilla.suse.com/show_bug.cgi?id=1271015
  * https://jira.suse.com/browse/PED-1962
  * https://jira.suse.com/browse/SLE-18320

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