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openSUSE go1.26-openssl Important Security Fixes Advisory 2026-3102-1

opensuse
Calendar Grey July 17, 2026
Scroller Opensuse
An update for openSUSE addresses five issues in go1.26-openssl with important security fixes to implement now.
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

## 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

* bsc#1245878

* bsc#1255111

* bsc#1264395

* bsc#1267442

* bsc#1267444

* bsc#1267450

* bsc#1271014

* bsc#1271015

* jsc#PED-1962

* jsc#SLE-18320

## 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

Severity
important
Lowest
Low
Medium
High
Critical

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

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