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CVE-2026-42501 Malicious module proxy can bypass checksum database in cmd/go

🗓️ 07 May 2026 19:41:19Reported by GoType 
vulnrichment
 vulnrichment🔗 github.com👁 6 Views

Malicious module proxy can bypass checksum validation in Go toolchain downloads; upgrade base toolchain.

Related
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2026-42501
7 May 202619:41
–attackerkb
Tenable Nessus		Amazon Linux 2023 : golang, golang-bin, golang-misc (ALAS2023-2026-1743)
27 May 202600:00
–nessus
Tenable Nessus		Amazon Linux 2 : golang, --advisory ALAS2-2026-3313 (ALAS-2026-3313)
27 May 202600:00
–nessus
Tenable Nessus		Golang 1.25.x < 1.25.10 / 1.26.x < 1.26.3 Multiple Vulnerabilities
15 May 202600:00
–nessus
Tenable Nessus		SUSE SLED15 / SLES15 Security Update : go1.26 (SUSE-SU-2026:1861-1)
16 May 202600:00
–nessus
Tenable Nessus		SUSE SLED15 / SLES15 Security Update : go1.25 (SUSE-SU-2026:1862-1)
16 May 202600:00
–nessus
Tenable Nessus		SUSE SLED15 / SLES15 Security Update : go1.26-openssl (SUSE-SU-2026:2078-1)
29 May 202600:00
–nessus
Tenable Nessus		SUSE SLED15 / SLES15 Security Update : go1.25-openssl (SUSE-SU-2026:2079-1)
29 May 202600:00
–nessus
Tenable Nessus		SUSE SLES15 Security Update : go1.26-openssl (SUSE-SU-2026:2092-1)
29 May 202600:00
–nessus
Tenable Nessus		SUSE SLES15 Security Update : go1.25-openssl (SUSE-SU-2026:2093-1)
29 May 202600:00
–nessus
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07 May 2026 19:41Current
5.8Medium risk
Vulners AI Score5.8
EPSS0.00008
SSVC
malicious proxychecksum validationgo toolchainmodule proxychecksum databaseuntrusted proxytoolchain downloads
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