openSUSE-SU-2026:21324-1: important: Security update for go1.25

openSUSE security update: security update for go1.25
-------------------------------------------------------------

Announcement ID: openSUSE-SU-2026:21324-1
Rating: important
References:

  * bsc#1244485
  * bsc#1245878
  * bsc#1259264
  * bsc#1259265
  * bsc#1259268
  * bsc#1264394
  * bsc#1271014
  * bsc#1271015



Cross-References:

  * CVE-2026-25679
  * CVE-2026-27139
  * CVE-2026-27142
  * CVE-2026-39822
  * CVE-2026-42505



CVSS scores:

  * 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 ( 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-2026-27139 ( 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 ( 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-2026-27142 ( 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 ( 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-2026-39822 ( SUSE ): 7.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
  * CVE-2026-42505 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Products:

         openSUSE Leap 16.0

-------------------------------------------------------------

An update that solves 5 vulnerabilities and has 8 bug fixes can now be installed.

Description:

This update for go1.25 fixes the following issues

- Update to version go1.25.12 (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).
- CVE-2026-39822: os: Root escape via symlink plus trailing slash (bsc#1271014).
- CVE-2026-42505: crypto/tls: omit PSK in ECH outer client hello (bsc#1271015).


Patch instructions:

   To install this openSUSE security 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 16.0

   zypper in -t patch openSUSE-Leap-16.0-1228=1

Package List:

- openSUSE Leap 16.0:

  go1.25-1.25.12-160000.1.1
  go1.25-doc-1.25.12-160000.1.1
  go1.25-race-1.25.12-160000.1.1

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://www.suse.com/security/cve/CVE-2026-39822.html
  * https://www.suse.com/security/cve/CVE-2026-42505.html