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cmd/go: golang: Go command (cmd/go): Integrity bypass due to checksum validation flaw via malicious module proxy

🗓️ 03 Aug 2026 17:42:42Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 15 Views

cmd/go checksum validation flaw lets malicious proxy serve altered toolchain for code execution.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb		CVE-2026-42501
7 May 202619:41
–attackerkb
nessus
Tenable Nessus		Amazon Linux 2023 : golang, golang-bin, golang-misc (ALAS2023-2026-1743)
27 May 202600:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2 : golang, --advisory ALAS2-2026-3313 (ALAS-2026-3313)
27 May 202600:00
–nessus
nessus
Tenable Nessus		Rocky Linux 10.2 [CIQ] Security Update: go-toolset / golang / golang-bin / golang-docs / golang-misc / etc Multiple Vulnerabilities (crlsa-2026_22120)
1 Oct 202600:00
–nessus
nessus
Tenable Nessus		Rocky Linux 8 [CIQ] Security Update: delve / delve-debuginfo / delve-debugsource / go-toolset / golang / etc Multiple Vulnerabilities (crlsa-2026_22112)
1 Oct 202600:00
–nessus
nessus
Tenable Nessus		Rocky Linux 9 [CIQ] Security Update: go-toolset / golang / golang-bin / golang-docs / golang-misc / etc Multiple Vulnerabilities (crlsa-2026_22121)
1 Oct 202600:00
–nessus
nessus
Tenable Nessus		EulerOS 2.0 SP15 : golang (EulerOS-SA-2026-2885)
6 Aug 202600:00
–nessus
nessus
Tenable Nessus		EulerOS 2.0 SP15 : golang (EulerOS-SA-2026-2926)
6 Aug 202600:00
–nessus
nessus
Tenable Nessus		EulerOS 2.0 SP13 : golang (EulerOS-SA-2026-2967)
6 Aug 202600:00
–nessus
nessus
Tenable Nessus		EulerOS 2.0 SP13 : golang (EulerOS-SA-2026-3017)
6 Aug 202600:00
–nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.6aarch64go-toolset1.26.5-1.el9_6go-toolset-1.26.5-1.el9_6.aarch64.rpm
Red Hat Enterprise Linux9.6ppc64lego-toolset1.26.5-1.el9_6go-toolset-1.26.5-1.el9_6.ppc64le.rpm
Red Hat Enterprise Linux9.6s390xgo-toolset1.26.5-1.el9_6go-toolset-1.26.5-1.el9_6.s390x.rpm
Red Hat Enterprise Linux9.6x86_64go-toolset1.26.5-1.el9_6go-toolset-1.26.5-1.el9_6.x86_64.rpm
Red Hat Enterprise Linux9.6aarch64golang1.26.5-1.el9_6golang-1.26.5-1.el9_6.aarch64.rpm
Red Hat Enterprise Linux9.6ppc64legolang1.26.5-1.el9_6golang-1.26.5-1.el9_6.ppc64le.rpm
Red Hat Enterprise Linux9.6s390xgolang1.26.5-1.el9_6golang-1.26.5-1.el9_6.s390x.rpm
Red Hat Enterprise Linux9.6x86_64golang1.26.5-1.el9_6golang-1.26.5-1.el9_6.x86_64.rpm
Red Hat Enterprise Linux9.6aarch64golang-bin1.26.5-1.el9_6golang-bin-1.26.5-1.el9_6.aarch64.rpm
Red Hat Enterprise Linux9.6ppc64legolang-bin1.26.5-1.el9_6golang-bin-1.26.5-1.el9_6.ppc64le.rpm
Rows per page

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10 Oct 2026 04:20Current
7.4High risk
Vulners AI Score7.4
CVSS 3.17.5
EPSS0.00285
SSVC
CWE-347
cmd/gochecksum validationmodule proxyintegrity bypasscode execution
15