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CVE-2026-42501

Опубликовано: 07 мая 2026
Источник: ubuntu
Приоритет: medium
EPSS Низкий
CVSS3: 7.5

Описание

A malicious module proxy can exploit a flaw in the go command's validation of module checksums to bypass checksum database validation. This vulnerability affects any user using an untrusted module proxy (GOMODPROXY) or checksum database (GOSUMDB). A malicious module proxy can serve altered versions of the Go toolchain. When selecting a different version of the Go toolchain than the currently installed toolchain (due to the GOTOOLCHAIN environment variable, or a go.work or go.mod with a toolchain line), the go command will download and execute a toolchain provided by the module proxy. A malicious module proxy can bypass checksum database validation for this downloaded toolchain. Since this vulnerability affects the security of toolchain downloads, setting GOTOOLCHAIN to a fixed version is not sufficient. You must upgrade your base Go toolchain. The go tool always validates the hash of a toolchain before executing it, so fixed versions will refuse to execute any cached, altered versio...

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devel

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jammy

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noble

DNE

questing

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esm-infra-legacy/trusty

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esm-infra-legacy/xenial

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esm-infra/bionic

needs-triage

esm-infra/xenial

ignored

end of ESM support, was needs-triage
jammy

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noble

DNE

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DNE

upstream

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devel

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esm-apps-legacy/xenial

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esm-apps/bionic

needs-triage

esm-apps/jammy

needs-triage

esm-apps/xenial

ignored

end of ESM support, was needs-triage
esm-infra/focal

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jammy

needs-triage

noble

DNE

questing

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resolute

DNE

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devel

DNE

esm-infra/focal

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jammy

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noble

DNE

questing

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resolute

DNE

upstream

needs-triage

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devel

DNE

esm-apps/bionic

needs-triage

esm-apps/focal

needs-triage

jammy

DNE

noble

DNE

questing

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

needs-triage

noble

DNE

questing

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-apps-legacy/xenial

needs-triage

esm-apps/bionic

needs-triage

esm-apps/focal

needs-triage

esm-apps/xenial

ignored

end of ESM support, was needs-triage
jammy

needs-triage

noble

DNE

questing

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-apps/focal

needs-triage

esm-apps/jammy

needs-triage

jammy

needs-triage

noble

DNE

questing

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-apps/focal

needs-triage

esm-apps/jammy

needs-triage

esm-apps/noble

needs-triage

jammy

needs-triage

noble

needs-triage

questing

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-apps/focal

needs-triage

esm-apps/jammy

needs-triage

jammy

needs-triage

noble

needs-triage

questing

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

needs-triage

esm-apps/jammy

needs-triage

esm-apps/noble

needs-triage

esm-apps/resolute

needs-triage

jammy

needs-triage

noble

needs-triage

questing

ignored

end of life, was needs-triage
resolute

needs-triage

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

needs-triage

esm-apps/jammy

needs-triage

esm-apps/noble

needs-triage

jammy

needs-triage

noble

needs-triage

questing

ignored

end of life, was needs-triage
resolute

needs-triage

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

needs-triage

jammy

DNE

noble

DNE

questing

ignored

end of life, was needs-triage
resolute

needs-triage

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra-legacy/xenial

needs-triage

esm-infra/xenial

ignored

end of ESM support, was needs-triage
jammy

DNE

noble

DNE

questing

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-apps/bionic

needs-triage

jammy

DNE

noble

DNE

questing

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-apps/bionic

needs-triage

jammy

DNE

noble

DNE

questing

DNE

resolute

DNE

upstream

needs-triage

Показывать по

EPSS

Процентиль: 14%
0.00231
Низкий

7.5 High

CVSS3

Связанные уязвимости

CVSS3: 7.5
nvd
3 месяца назад

A malicious module proxy can exploit a flaw in the go command's validation of module checksums to bypass checksum database validation. This vulnerability affects any user using an untrusted module proxy (GOMODPROXY) or checksum database (GOSUMDB). A malicious module proxy can serve altered versions of the Go toolchain. When selecting a different version of the Go toolchain than the currently installed toolchain (due to the GOTOOLCHAIN environment variable, or a go.work or go.mod with a toolchain line), the go command will download and execute a toolchain provided by the module proxy. A malicious module proxy can bypass checksum database validation for this downloaded toolchain. Since this vulnerability affects the security of toolchain downloads, setting GOTOOLCHAIN to a fixed version is not sufficient. You must upgrade your base Go toolchain. The go tool always validates the hash of a toolchain before executing it, so fixed versions will refuse to execute any cached, altered versions

msrc
3 месяца назад

Malicious module proxy can bypass checksum database in cmd/go

CVSS3: 7.5
debian
3 месяца назад

A malicious module proxy can exploit a flaw in the go command's valida ...

CVSS3: 7.5
github
3 месяца назад

A malicious module proxy can exploit a flaw in the go command's validation of module checksums to bypass checksum database validation. This vulnerability affects any user using an untrusted module proxy (GOMODPROXY) or checksum database (GOSUMDB). A malicious module proxy can serve altered versions of the Go toolchain. When selecting a different version of the Go toolchain than the currently installed toolchain (due to the GOTOOLCHAIN environment variable, or a go.work or go.mod with a toolchain line), the go command will download and execute a toolchain provided by the module proxy. A malicious module proxy can bypass checksum database validation for this downloaded toolchain. Since this vulnerability affects the security of toolchain downloads, setting GOTOOLCHAIN to a fixed version is not sufficient. You must upgrade your base Go toolchain. The go tool always validates the hash of a toolchain before executing it, so fixed versions will refuse to execute any cached, altered versio...

CVSS3: 7.5
fstec
3 месяца назад

Уязвимость модулей GOMODPROXY и GOSUMDB языка программирования Go, позволяющая нарушителю обойти ограничения безопасности и получить доступ на чтение и изменение данных

EPSS

Процентиль: 14%
0.00231
Низкий

7.5 High

CVSS3