SUSE-SU-2026:1862-1: important: Security update for go1.25

Fri May 15 12:33:22 UTC 2026

# Security update for go1.25

Announcement ID: SUSE-SU-2026:1862-1  
Release Date: 2026-05-14T22:34:21Z  
Rating: important  
References:

  * bsc#1170826
  * bsc#1244485
  * bsc#1264499
  * bsc#1264500
  * bsc#1264501
  * bsc#1264502
  * bsc#1264503
  * bsc#1264504
  * bsc#1264505
  * bsc#1264506
  * bsc#1264507
  * bsc#1264508
  * bsc#1264509

Cross-References:

  * CVE-2026-33811
  * CVE-2026-33814
  * CVE-2026-39817
  * CVE-2026-39819
  * CVE-2026-39820
  * CVE-2026-39823
  * CVE-2026-39825
  * CVE-2026-39826
  * CVE-2026-39836
  * CVE-2026-42499
  * CVE-2026-42501

CVSS scores:

  * CVE-2026-33811 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-33811 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-33811 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-33814 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-33814 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-33814 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39817 ( SUSE ):  5.9 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N
  * CVE-2026-39817 ( NVD ):  5.9 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N
  * CVE-2026-39817 ( NVD ):  5.9 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N
  * CVE-2026-39819 ( SUSE ):  5.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
  * CVE-2026-39819 ( NVD ):  5.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
  * CVE-2026-39819 ( NVD ):  5.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
  * CVE-2026-39820 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39820 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39820 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39823 ( SUSE ):  6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
  * CVE-2026-39823 ( NVD ):  6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
  * CVE-2026-39825 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  * CVE-2026-39825 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  * CVE-2026-39826 ( SUSE ):  6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
  * CVE-2026-39826 ( NVD ):  6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
  * CVE-2026-39836 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39836 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39836 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-42499 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-42499 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-42501 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-42501 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Products:

  * Development Tools Module 15-SP7
  * SUSE Linux Enterprise Desktop 15 SP7
  * SUSE Linux Enterprise High Performance Computing 15 SP4
  * SUSE Linux Enterprise High Performance Computing 15 SP5
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP4
  * SUSE Linux Enterprise Server 15 SP4 LTSS
  * SUSE Linux Enterprise Server 15 SP5
  * SUSE Linux Enterprise Server 15 SP5 LTSS
  * 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 SP4
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

An update that solves 11 vulnerabilities and has two security fixes can now be
installed.

## Description:

This update for go1.25 fixes the following issues

Security issues:

  * CVE-2026-33811: net: crash when handling long CNAME response (bsc#1264508).
  * CVE-2026-33814: net/http: infinite loop in HTTP/2 transport when given bad
    SETTINGS_MAX_FRAME_SIZE (bsc#1264506).
  * CVE-2026-39817: cmd/go: "go tool pack" does not sanitize output paths
    (bsc#1264505).
  * CVE-2026-39819: cmd/go: "go bug" follows symlinks in predictable temporary
    filenames (bsc#1264504).
  * CVE-2026-39820: net/mail: quadratic string concatentation in consumeComment
    (bsc#1264503).
  * CVE-2026-39823: html/template: bypass of meta content URL escaping causes
    XSS (bsc#1264509).
  * CVE-2026-39825: net/http/httputil: ReverseProxy forwards queries with more
    than urlmaxqueryparams parameters (bsc#1264500).
  * CVE-2026-39826: html/template: escaper bypass leads to XSS (bsc#1264507).
  * CVE-2026-39836: net: panic in Dial and LookupPort when handling NUL byte on
    Windows (bsc#1264501).
  * CVE-2026-42499: net/mail: quadratic string concatenation in consumePhrase
    (bsc#1264502).
  * CVE-2026-42501: cmd/go: malicious module proxy can bypass checksum database
    (bsc#1264499).

Non security issues:

  * Updated to go1.25.10 (bsc#1244485).
  * Go packages miss binutils-gold dependency (bsc#1170826).

## 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 15 SP5 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-1862=1

  * SUSE Linux Enterprise Server 15 SP6 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-1862=1

  * Development Tools Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP7-2026-1862=1

  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-1862=1

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-1862=1

  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-1862=1

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-1862=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP4  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-1862=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP5  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-1862=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP6  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-1862=1

  * SUSE Linux Enterprise Server 15 SP4 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-1862=1

## Package List:

  * SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * go1.25-race-1.25.10-150000.1.38.1
    * go1.25-doc-1.25.10-150000.1.38.1
    * go1.25-1.25.10-150000.1.38.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
    * go1.25-race-1.25.10-150000.1.38.1
    * go1.25-doc-1.25.10-150000.1.38.1
    * go1.25-1.25.10-150000.1.38.1
  * Development Tools Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * go1.25-race-1.25.10-150000.1.38.1
    * go1.25-doc-1.25.10-150000.1.38.1
    * go1.25-1.25.10-150000.1.38.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64
    x86_64)
    * go1.25-race-1.25.10-150000.1.38.1
    * go1.25-doc-1.25.10-150000.1.38.1
    * go1.25-1.25.10-150000.1.38.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64
    x86_64)
    * go1.25-race-1.25.10-150000.1.38.1
    * go1.25-doc-1.25.10-150000.1.38.1
    * go1.25-1.25.10-150000.1.38.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64
    x86_64)
    * go1.25-race-1.25.10-150000.1.38.1
    * go1.25-doc-1.25.10-150000.1.38.1
    * go1.25-1.25.10-150000.1.38.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64
    x86_64)
    * go1.25-race-1.25.10-150000.1.38.1
    * go1.25-doc-1.25.10-150000.1.38.1
    * go1.25-1.25.10-150000.1.38.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)
    * go1.25-race-1.25.10-150000.1.38.1
    * go1.25-doc-1.25.10-150000.1.38.1
    * go1.25-1.25.10-150000.1.38.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
    * go1.25-race-1.25.10-150000.1.38.1
    * go1.25-doc-1.25.10-150000.1.38.1
    * go1.25-1.25.10-150000.1.38.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
    * go1.25-race-1.25.10-150000.1.38.1
    * go1.25-doc-1.25.10-150000.1.38.1
    * go1.25-1.25.10-150000.1.38.1
  * SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64)
    * go1.25-race-1.25.10-150000.1.38.1
    * go1.25-doc-1.25.10-150000.1.38.1
    * go1.25-1.25.10-150000.1.38.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-33811.html
  * https://www.suse.com/security/cve/CVE-2026-33814.html
  * https://www.suse.com/security/cve/CVE-2026-39817.html
  * https://www.suse.com/security/cve/CVE-2026-39819.html
  * https://www.suse.com/security/cve/CVE-2026-39820.html
  * https://www.suse.com/security/cve/CVE-2026-39823.html
  * https://www.suse.com/security/cve/CVE-2026-39825.html
  * https://www.suse.com/security/cve/CVE-2026-39826.html
  * https://www.suse.com/security/cve/CVE-2026-39836.html
  * https://www.suse.com/security/cve/CVE-2026-42499.html
  * https://www.suse.com/security/cve/CVE-2026-42501.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1170826
  * https://bugzilla.suse.com/show_bug.cgi?id=1244485
  * https://bugzilla.suse.com/show_bug.cgi?id=1264499
  * https://bugzilla.suse.com/show_bug.cgi?id=1264500
  * https://bugzilla.suse.com/show_bug.cgi?id=1264501
  * https://bugzilla.suse.com/show_bug.cgi?id=1264502
  * https://bugzilla.suse.com/show_bug.cgi?id=1264503
  * https://bugzilla.suse.com/show_bug.cgi?id=1264504
  * https://bugzilla.suse.com/show_bug.cgi?id=1264505
  * https://bugzilla.suse.com/show_bug.cgi?id=1264506
  * https://bugzilla.suse.com/show_bug.cgi?id=1264507
  * https://bugzilla.suse.com/show_bug.cgi?id=1264508
  * https://bugzilla.suse.com/show_bug.cgi?id=1264509

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