SUSE-SU-2026:5226-1: important: Security update for go1.27

SLE-UPDATES null at suse.de
Fri Nov 13 08:31:33 UTC 2026 

# Security update for go1.27

Announcement ID: SUSE-SU-2026:5226-1  
Release Date: 2026-11-12T19:55:09Z  
Rating: important  
References:

  * bsc#1272545
  * bsc#1289978
  * bsc#1289979
  * bsc#1289980
  * bsc#1289981
  * bsc#1289982
  * bsc#1289983
  * bsc#1289984
  * bsc#1289985
  * bsc#1289986
  * bsc#1289987
  * bsc#1289988
  * bsc#1289989

  
Cross-References:

  * CVE-2026-97033
  * CVE-2026-97034
  * CVE-2026-97035
  * CVE-2026-97036
  * CVE-2026-97037
  * CVE-2026-97038
  * CVE-2026-97039
  * CVE-2026-97040
  * CVE-2026-97041
  * CVE-2026-97042
  * CVE-2026-97043
  * CVE-2026-97054

  
CVSS scores:

  * CVE-2026-97033 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
  * CVE-2026-97034 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
  * CVE-2026-97035 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
  * CVE-2026-97036 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
  * CVE-2026-97037 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
  * CVE-2026-97038 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
  * CVE-2026-97039 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
  * CVE-2026-97040 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
  * CVE-2026-97041 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
  * CVE-2026-97042 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
  * CVE-2026-97043 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
  * CVE-2026-97054 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/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 12 vulnerabilities and has one security fix can now be
installed.

## Description:

This update for go1.27 fixes the following issue:

Security issues fixed:

  * CVE-2026-97033: `cmd/go`: unexpected code execution via `--sysroot`,
    `-target`, `-isysroot`, `-Wl,-syslibroot`, and `-x cgo` flags (bsc#1289978).
  * CVE-2026-97034: `cmd/go`: arbitrary command execution via GCC spec files in
    `cgo` linker search directories (bsc#1289979).
  * CVE-2026-97035: `cmd/go`: unexpected code execution and arbitrary file write
    via Clang `-gen-*` and GCC `-gnat*` flags in `cgo` (bsc#1289980).
  * CVE-2026-97036: `cmd/go`: arbitrary code execution during build on darwin
    via `-l to_library` in `cgo` (bsc#1289981).
  * CVE-2026-97037: `cmd/go`: linker script injection via split `-Wl,` flags and
    Darwin or symbol linker flags in `cgo` (bsc#1289982).
  * CVE-2026-97038: `cmd/go`: arbitrary code execution via crafted `.syso` files
    and `cgo` linker input files (bsc#1289983).
  * CVE-2026-97039: `cmd/go`: flag sanitization bypass via `#cgo pkg-config:`
    directives (bsc#1289984).
  * CVE-2026-97040: `cmd/go`, `cmd/link`: `cgo` directive injection via `.syso`
    files disguised as Go object files (bsc#1289985).
  * CVE-2026-97041: `cmd/compile`, `cmd/link`: host linker flag injection via
    `//go:cgo_*` directives (bsc#1289986).
  * CVE-2026-97042: `cmd/cgo`, `cmd/compile`, `cmd/link`: linker flag injection
    via `cgo_import_dynamic` and PE DLL names (bsc#1289987).
  * CVE-2026-97043: `cmd/go`, `cmd/compile`: unexpected code execution via
    escaped quotes in `//go:cgo_ldflag` (bsc#1289988).
  * CVE-2026-97054: `net/http`: HTTP/1 server crash due to `MaxBytesReader`
    header race (bsc#1289989).

Changes for go1.27:

Update to version go1.27.4 (bsc#1272545):

  * go#81866 `cmd/compile`: `branchelim` optimization can eliminate result of
    store
  * go#81927 `cmd/asm`: amd64 assembler loops forever on a forward jump to a
    labelled `PCALIGN` when a branch needs widening
  * go#82023 `net`: `Dialer.Dial{TCP,UDP,IP}` incorrectly treats invalid
    addresses as `::`
  * go#82106 `cmd/compile`: `staticcheck` still crashes with generic methods on
    Go 1.27.2
  * go#82150 `runtime`: linux/mips `time64` nanosecond layout causes busy waits
    and empty CPU profiles
  * go#82334 `cmd/dist`: `GOFIPS140` bootstrap from Go 1.26 fails
  * go#82536 `crypto/tls`: omit ML-DSA from `signature_algorithms_cert` in Go
    1.27CherryPickApproved
  * go#82627 `crypto/fips140`: minor compliance improvements
  * go#82657 `runtime`: nil-pointer panic in a promoted-method wrapper becomes
    "traceback did not unwind completely" under `-race`

## 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-SP4-2026-5226

  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-5226

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-5226

  * SUSE Linux Enterprise Server for SAP Applications 15 SP5  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-5226

  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-5226

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-5226

  * SUSE Linux Enterprise Server for SAP Applications 15 SP6  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-5226

  * SUSE Linux Enterprise Server 15 SP4 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-5226

  * Development Tools Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP7-2026-5226

  * SUSE Linux Enterprise Server 15 SP5 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-5226

  * SUSE Linux Enterprise Server 15 SP6 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-5226

## Package List:

  * SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)
    * go1.27-1.27.4-150000.1.18.1
    * go1.27-race-1.27.4-150000.1.18.1
    * go1.27-doc-1.27.4-150000.1.18.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64
    x86_64)
    * go1.27-1.27.4-150000.1.18.1
    * go1.27-race-1.27.4-150000.1.18.1
    * go1.27-doc-1.27.4-150000.1.18.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64
    x86_64)
    * go1.27-1.27.4-150000.1.18.1
    * go1.27-race-1.27.4-150000.1.18.1
    * go1.27-doc-1.27.4-150000.1.18.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
    * go1.27-1.27.4-150000.1.18.1
    * go1.27-race-1.27.4-150000.1.18.1
    * go1.27-doc-1.27.4-150000.1.18.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64
    x86_64)
    * go1.27-1.27.4-150000.1.18.1
    * go1.27-race-1.27.4-150000.1.18.1
    * go1.27-doc-1.27.4-150000.1.18.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64
    x86_64)
    * go1.27-1.27.4-150000.1.18.1
    * go1.27-race-1.27.4-150000.1.18.1
    * go1.27-doc-1.27.4-150000.1.18.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
    * go1.27-1.27.4-150000.1.18.1
    * go1.27-race-1.27.4-150000.1.18.1
    * go1.27-doc-1.27.4-150000.1.18.1
  * SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64)
    * go1.27-1.27.4-150000.1.18.1
    * go1.27-race-1.27.4-150000.1.18.1
    * go1.27-doc-1.27.4-150000.1.18.1
  * Development Tools Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * go1.27-1.27.4-150000.1.18.1
    * go1.27-race-1.27.4-150000.1.18.1
    * go1.27-doc-1.27.4-150000.1.18.1
  * SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * go1.27-1.27.4-150000.1.18.1
    * go1.27-race-1.27.4-150000.1.18.1
    * go1.27-doc-1.27.4-150000.1.18.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
    * go1.27-1.27.4-150000.1.18.1
    * go1.27-race-1.27.4-150000.1.18.1
    * go1.27-doc-1.27.4-150000.1.18.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-97033.html
  * https://www.suse.com/security/cve/CVE-2026-97034.html
  * https://www.suse.com/security/cve/CVE-2026-97035.html
  * https://www.suse.com/security/cve/CVE-2026-97036.html
  * https://www.suse.com/security/cve/CVE-2026-97037.html
  * https://www.suse.com/security/cve/CVE-2026-97038.html
  * https://www.suse.com/security/cve/CVE-2026-97039.html
  * https://www.suse.com/security/cve/CVE-2026-97040.html
  * https://www.suse.com/security/cve/CVE-2026-97041.html
  * https://www.suse.com/security/cve/CVE-2026-97042.html
  * https://www.suse.com/security/cve/CVE-2026-97043.html
  * https://www.suse.com/security/cve/CVE-2026-97054.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1272545
  * https://bugzilla.suse.com/show_bug.cgi?id=1289978
  * https://bugzilla.suse.com/show_bug.cgi?id=1289979
  * https://bugzilla.suse.com/show_bug.cgi?id=1289980
  * https://bugzilla.suse.com/show_bug.cgi?id=1289981
  * https://bugzilla.suse.com/show_bug.cgi?id=1289982
  * https://bugzilla.suse.com/show_bug.cgi?id=1289983
  * https://bugzilla.suse.com/show_bug.cgi?id=1289984
  * https://bugzilla.suse.com/show_bug.cgi?id=1289985
  * https://bugzilla.suse.com/show_bug.cgi?id=1289986
  * https://bugzilla.suse.com/show_bug.cgi?id=1289987
  * https://bugzilla.suse.com/show_bug.cgi?id=1289988
  * https://bugzilla.suse.com/show_bug.cgi?id=1289989

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