CVE-2026-56857

EUVD-2026-95420
On Windows, when the target of Root.Mkdir or Root.MkdirAll is a junction pointing to an empty location, the operation can create a directory at the junction target even when that target is located outside the root. This only applies to operations where the last path component is a junction (path/to/junction, but not path/junction/target).
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 40.5%
Debian logo
Debian Releases
Debian Product
Codename
golang-1.19
bookworm
1.19.8-2
fixed
golang-1.24
trixie
1.24.4-1
fixed
golang-1.25
forky
1.25.12-1
fixed
golang-1.26
forky
1.26.8-1
fixed
sid
1.26.8-2
fixed
golang-1.27
forky
1.27.1-2
fixed
sid
1.27.1-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
golang
jammy
dne
noble
dne
resolute
dne
golang-1.6
jammy
dne
noble
dne
resolute
dne
xenial
needs-triage
golang-1.8
bionic
needs-triage
jammy
dne
noble
dne
resolute
dne
golang-1.9
bionic
needs-triage
jammy
dne
noble
dne
resolute
dne
golang-1.10
bionic
needs-triage
jammy
dne
noble
dne
resolute
dne
trusty
needs-triage
xenial
needs-triage
golang-1.13
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
dne
resolute
dne
xenial
needs-triage
golang-1.14
focal
needs-triage
jammy
dne
noble
dne
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dne
golang-1.16
bionic
needs-triage
focal
needs-triage
jammy
dne
noble
dne
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dne
golang-1.17
jammy
needs-triage
noble
dne
resolute
dne
golang-1.18
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
dne
resolute
dne
xenial
needs-triage
golang-1.20
focal
needs-triage
jammy
needs-triage
noble
dne
resolute
dne
golang-1.21
focal
needs-triage
jammy
needs-triage
noble
needs-triage
resolute
dne
golang-1.22
focal
needs-triage
jammy
needs-triage
noble
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dne
golang-1.23
jammy
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noble
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needs-triage
golang-1.24
jammy
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noble
needs-triage
resolute
needs-triage
golang-1.25
jammy
dne
noble
dne
resolute
needs-triage
golang-1.26
jammy
dne
noble
dne
resolute
needs-triage
golang-1.27
jammy
dne
noble
dne
resolute
dne