SUSE-SU-2026:4629-1: important: Security update for go1.26

SLE-SECURITY-UPDATES null at suse.de
Mon Oct 12 20:31:05 UTC 2026 

# Security update for go1.26

Announcement ID: SUSE-SU-2026:4629-1  
Release Date: 2026-10-12T15:15:28Z  
Rating: important  
References:

  * bsc#1255111
  * bsc#1284766
  * bsc#1284767
  * bsc#1284768
  * bsc#1284769
  * bsc#1284771
  * bsc#1284773
  * bsc#1284774
  * bsc#1284775
  * bsc#1284776
  * bsc#1284777
  * bsc#1284778
  * bsc#1284779
  * bsc#1284780

  
Cross-References:

  * CVE-2026-56857
  * CVE-2026-56866
  * CVE-2026-78659
  * CVE-2026-78660
  * CVE-2026-78667
  * CVE-2026-94439
  * CVE-2026-94440
  * CVE-2026-94444
  * CVE-2026-94447
  * CVE-2026-94448
  * CVE-2026-97030
  * CVE-2026-97031
  * CVE-2026-97032

  
CVSS scores:

  * CVE-2026-56857 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-56857 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-56866 ( SUSE ):  8.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
  * CVE-2026-56866 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-78659 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-78659 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-78660 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-78660 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  * CVE-2026-78667 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-78667 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-94439 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-94439 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-94440 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-94440 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-94444 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-94447 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-94448 ( SUSE ):  6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
  * CVE-2026-97030 ( SUSE ):  6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
  * CVE-2026-97031 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-97031 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-97032 ( SUSE ):  5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/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 13 vulnerabilities and has one security fix can now be
installed.

## Description:

This update for go1.26 fixes the following issues:

Update to go 1.26.9 (bsc#1255111):

  * CVE-2026-56857: os: Root.Mkdir(All) can follow junctions out of the root on
    Windows (bsc#1284766).
  * CVE-2026-56866: net/http: HTTP/1 client connection desynchronization after
    CONNECT rejection (bsc#1284767).
  * CVE-2026-78659: net/http: HTTP/2 server memory exhaustion due to Trailer
    headers (bsc#1284768).
  * CVE-2026-78660: net/http: HTTP/2 transport accepts malformed framing-related
    headers (bsc#1284769).
  * CVE-2026-78667: net/http: lack of limit on size of parsed Range headers
    (bsc#1284771).
  * CVE-2026-94439: net/http: HTTP/1 server connection desynchronization after
    2xx CONNECT response (bsc#1284773).
  * CVE-2026-94440: net/textproto, mime/multipart: memory limit bypass when
    parsing MIME headers (bsc#1284774).
  * CVE-2026-94444: cmd/go: checksum bypass for golang.org/fips140
    (bsc#1284775).
  * CVE-2026-94447: cmd/go: checksum database bypass for golang.org/toolchain
    (bsc#1284776).
  * CVE-2026-94448: html/template: reset context tracking on consecutive
    template expressions (bsc#1284777).
  * CVE-2026-97030: html/template: recognize yield as regexp preceder keyword
    (bsc#1284778).
  * CVE-2026-97031: crypto/tls: reject malformed ECH outer extension references
    (bsc#1284779).
  * CVE-2026-97032: net/http: HTTP/2 server crash due to HPACK encoder race
    (bsc#1284780).

Changes:

  * go1.26.9 (released 2026-10-08) includes security fixes to the go command,
    and the crypto/tls, html/template, net/http, net/textproto, and os packages,
    as well as bug fixes to the compiler, the linker, the runtime, vet, and the
    crypto/mlkem, net/http, and os packages.
  * go#81144 runtime: mutex profiling can deadlock Windows asynchronous
    preemption during GC
  * go#81225 runtime: netpoll: eventfd ready for something unexpected
  * go#81251 lib/fips140: fix ML-KEM CAST and re-seal v1.26.0
  * go#81295 cmd/compile: internal compiler error: MoveLoop too small
  * go#81318 os,internal/poll: NewFile on an inherited overlapped stdout pipe
    hangs a sibling's WriteFile (Windows)
  * go#81401 os: go 1.25.x regression on RemoveAll for oldest Windows 10 build
    10240
  * go#81436 runtime: intermittent SIGBUS (unaligned access) in netpoll on
    mips64le (Go 1.27)
  * go#81668 cmd/compile: go1.27 miscompiles &slice[i].Field on an append-built
    slice; returned pointer aliases reused memory
  * go#81689 cmd/compile: slice allocation reuses stack backing store
    incorrectly
  * go#81860 cmd/go: vet reports no diagnostics for a package that an earlier
    run vetted as a dependency
  * go#81889 cmd/link: plugin.Open fails on macOS 27: LC_DYLD_CHAINED_FIXUPS
    seg_count not updated after combining DWARF

## 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 for SAP Applications 15 SP4  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-4629

  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-4629

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-4629

  * SUSE Linux Enterprise Server for SAP Applications 15 SP5  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-4629

  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-4629

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-4629

  * SUSE Linux Enterprise Server for SAP Applications 15 SP6  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-4629

  * SUSE Linux Enterprise Server 15 SP4 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-4629

  * Development Tools Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP7-2026-4629

  * SUSE Linux Enterprise Server 15 SP5 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-4629

  * SUSE Linux Enterprise Server 15 SP6 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-4629

## Package List:

  * SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)
    * go1.26-1.26.9-150000.1.33.1
    * go1.26-race-1.26.9-150000.1.33.1
    * go1.26-doc-1.26.9-150000.1.33.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64
    x86_64)
    * go1.26-1.26.9-150000.1.33.1
    * go1.26-race-1.26.9-150000.1.33.1
    * go1.26-doc-1.26.9-150000.1.33.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64
    x86_64)
    * go1.26-1.26.9-150000.1.33.1
    * go1.26-race-1.26.9-150000.1.33.1
    * go1.26-doc-1.26.9-150000.1.33.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
    * go1.26-1.26.9-150000.1.33.1
    * go1.26-race-1.26.9-150000.1.33.1
    * go1.26-doc-1.26.9-150000.1.33.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64
    x86_64)
    * go1.26-1.26.9-150000.1.33.1
    * go1.26-race-1.26.9-150000.1.33.1
    * go1.26-doc-1.26.9-150000.1.33.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64
    x86_64)
    * go1.26-1.26.9-150000.1.33.1
    * go1.26-race-1.26.9-150000.1.33.1
    * go1.26-doc-1.26.9-150000.1.33.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
    * go1.26-1.26.9-150000.1.33.1
    * go1.26-race-1.26.9-150000.1.33.1
    * go1.26-doc-1.26.9-150000.1.33.1
  * SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64)
    * go1.26-1.26.9-150000.1.33.1
    * go1.26-race-1.26.9-150000.1.33.1
    * go1.26-doc-1.26.9-150000.1.33.1
  * Development Tools Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * go1.26-1.26.9-150000.1.33.1
    * go1.26-race-1.26.9-150000.1.33.1
    * go1.26-doc-1.26.9-150000.1.33.1
  * SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * go1.26-1.26.9-150000.1.33.1
    * go1.26-race-1.26.9-150000.1.33.1
    * go1.26-doc-1.26.9-150000.1.33.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
    * go1.26-1.26.9-150000.1.33.1
    * go1.26-race-1.26.9-150000.1.33.1
    * go1.26-doc-1.26.9-150000.1.33.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-56857.html
  * https://www.suse.com/security/cve/CVE-2026-56866.html
  * https://www.suse.com/security/cve/CVE-2026-78659.html
  * https://www.suse.com/security/cve/CVE-2026-78660.html
  * https://www.suse.com/security/cve/CVE-2026-78667.html
  * https://www.suse.com/security/cve/CVE-2026-94439.html
  * https://www.suse.com/security/cve/CVE-2026-94440.html
  * https://www.suse.com/security/cve/CVE-2026-94444.html
  * https://www.suse.com/security/cve/CVE-2026-94447.html
  * https://www.suse.com/security/cve/CVE-2026-94448.html
  * https://www.suse.com/security/cve/CVE-2026-97030.html
  * https://www.suse.com/security/cve/CVE-2026-97031.html
  * https://www.suse.com/security/cve/CVE-2026-97032.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1255111
  * https://bugzilla.suse.com/show_bug.cgi?id=1284766
  * https://bugzilla.suse.com/show_bug.cgi?id=1284767
  * https://bugzilla.suse.com/show_bug.cgi?id=1284768
  * https://bugzilla.suse.com/show_bug.cgi?id=1284769
  * https://bugzilla.suse.com/show_bug.cgi?id=1284771
  * https://bugzilla.suse.com/show_bug.cgi?id=1284773
  * https://bugzilla.suse.com/show_bug.cgi?id=1284774
  * https://bugzilla.suse.com/show_bug.cgi?id=1284775
  * https://bugzilla.suse.com/show_bug.cgi?id=1284776
  * https://bugzilla.suse.com/show_bug.cgi?id=1284777
  * https://bugzilla.suse.com/show_bug.cgi?id=1284778
  * https://bugzilla.suse.com/show_bug.cgi?id=1284779
  * https://bugzilla.suse.com/show_bug.cgi?id=1284780

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.suse.com/pipermail/sle-security-updates/attachments/20261012/d4f50647/attachment.htm>

More information about the sle-security-updates mailing list