SUSE-SU-2026:21200-1: moderate: Security update for go1.25

[SLE-UPDATES]

# Security update for go1.25

Announcement ID: SUSE-SU-2026:21200-1  
Release Date: 2026-04-16T07:24:09Z  
Rating: moderate  
References:

  * bsc#1244485
  * bsc#1259264
  * bsc#1259265
  * bsc#1259268

  
Cross-References:

  * CVE-2026-25679
  * CVE-2026-27139
  * CVE-2026-27142

  
CVSS scores:

  * CVE-2026-25679 ( SUSE ):  4.6
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-25679 ( SUSE ):  3.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
  * CVE-2026-25679 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-27139 ( SUSE ):  4.8
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-27139 ( SUSE ):  3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
  * CVE-2026-27139 ( NVD ):  2.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
  * CVE-2026-27142 ( SUSE ):  5.1
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-27142 ( SUSE ):  5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
  * CVE-2026-27142 ( NVD ):  6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

  
Affected Products:

  * SUSE Linux Enterprise Server 16.0
  * SUSE Linux Enterprise Server for SAP applications 16.0

  
  
An update that solves three vulnerabilities and has one fix can now be
installed.

## Description:

This update for go1.25 fixes the following issues:

Update to go1.25.8 (bsc#1244485):

  * CVE-2026-25679: net/url: reject IPv6 literal not at start of host
    (bsc#1259264).
  * CVE-2026-27139: os: FileInfo can escape from a Root (bsc#1259268).
  * CVE-2026-27142: html/template: URLs in meta content attribute actions are
    not escaped (bsc#1259265).

Changelog:

  * go#77253 cmd/compile: miscompile of global array initialization
  * go#77406 os: Go 1.25.x regression on RemoveAll for windows
  * go#77413 runtime: netpollinit() incorrectly prints the error from
    linux.Eventfd
  * go#77438 cmd/go: CGO compilation fails after upgrading from Go 1.25.5 to
    1.25.6 due to --define-variable flag in pkg-config
  * go#77531 net/smtp: expiry date of localhostCert for testing is too short

## 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 16.0  
    zypper in -t patch SUSE-SLES-16.0-511=1

  * SUSE Linux Enterprise Server for SAP applications 16.0  
    zypper in -t patch SUSE-SLES-16.0-511=1

## Package List:

  * SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64)
    * go1.25-doc-1.25.8-160000.1.1
    * go1.25-1.25.8-160000.1.1
    * go1.25-race-1.25.8-160000.1.1
  * SUSE Linux Enterprise Server 16.0 (aarch64 x86_64)
    * go1.25-libstd-debuginfo-1.25.8-160000.1.1
    * go1.25-debuginfo-1.25.8-160000.1.1
    * go1.25-libstd-1.25.8-160000.1.1
  * SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64)
    * go1.25-doc-1.25.8-160000.1.1
    * go1.25-1.25.8-160000.1.1
    * go1.25-race-1.25.8-160000.1.1
  * SUSE Linux Enterprise Server for SAP applications 16.0 (x86_64)
    * go1.25-libstd-debuginfo-1.25.8-160000.1.1
    * go1.25-debuginfo-1.25.8-160000.1.1
    * go1.25-libstd-1.25.8-160000.1.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-25679.html
  * https://www.suse.com/security/cve/CVE-2026-27139.html
  * https://www.suse.com/security/cve/CVE-2026-27142.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1244485
  * https://bugzilla.suse.com/show_bug.cgi?id=1259264
  * https://bugzilla.suse.com/show_bug.cgi?id=1259265
  * https://bugzilla.suse.com/show_bug.cgi?id=1259268

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