CVE-2026-39822

EUVD-2026-42316
On Unix systems, opening a file in an os.Root improperly follows symlinks to locations outside of the Root when the final path component of the a path is a symbolic link and the path ends in /. For example, 'root.Open("symlink/")' will open "symlink" even when "symlink" is a symbolic link pointing outside of the root.
Symlink
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 14.4%
Affected Products (NVD)
VendorProductVersion
golanggo
𝑥
< 1.25.12
golanggo
1.26.0 ≤
𝑥
< 1.26.5
golanggo
1.27:rc1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
golang-1.15
bullseye
1.15.15-1~deb11u4
fixed
golang-1.19
bookworm
1.19.8-2
fixed
golang-1.24
trixie
no-dsa
golang-1.25
forky
1.25.12-1
fixed
sid
1.25.13-1
fixed
golang-1.26
forky
1.26.5-1
fixed
sid
1.26.6-2
fixed
golang-1.27
forky
1.27~rc2-1
fixed
sid
1.27~rc3-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
golang
jammy
dne
noble
dne
questing
dne
resolute
dne
golang-1.6
jammy
dne
noble
dne
questing
dne
resolute
dne
xenial
needs-triage
golang-1.8
bionic
needs-triage
jammy
dne
noble
dne
questing
dne
resolute
dne
golang-1.9
bionic
needs-triage
jammy
dne
noble
dne
questing
dne
resolute
dne
golang-1.10
bionic
needs-triage
jammy
dne
noble
dne
questing
dne
resolute
dne
trusty
needs-triage
xenial
needs-triage
golang-1.13
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
dne
questing
dne
resolute
dne
golang-1.14
focal
needs-triage
jammy
dne
noble
dne
questing
dne
resolute
dne
golang-1.16
bionic
needs-triage
focal
needs-triage
jammy
dne
noble
dne
questing
dne
resolute
dne
golang-1.17
jammy
needs-triage
noble
dne
questing
dne
resolute
dne
golang-1.18
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
dne
questing
dne
resolute
dne
golang-1.20
focal
needs-triage
jammy
needs-triage
noble
dne
questing
dne
resolute
dne
golang-1.21
focal
needs-triage
jammy
needs-triage
noble
needs-triage
questing
dne
resolute
dne
golang-1.22
focal
needs-triage
jammy
needs-triage
noble
needs-triage
questing
dne
resolute
dne
golang-1.23
jammy
needs-triage
noble
needs-triage
questing
ignored
resolute
needs-triage
golang-1.24
jammy
needs-triage
noble
needs-triage
questing
ignored
resolute
needs-triage
golang-1.25
jammy
dne
noble
dne
questing
ignored
resolute
needs-triage
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
buildah
RHEL 9
2:1.43.1-4.el9_8
fixed
buildah-tests
RHEL 9
2:1.43.1-4.el9_8
fixed
go-toolset
RHEL 9
0:1.26.5-1.el9_8
fixed
golang
RHEL 9
0:1.26.5-1.el9_8
fixed
golang-bin
RHEL 9
0:1.26.5-1.el9_8
fixed
golang-docs
RHEL 9
0:1.26.5-1.el9_8
fixed
golang-misc
RHEL 9
0:1.26.5-1.el9_8
fixed
golang-race
RHEL 9
0:1.26.5-1.el9_8
fixed
golang-src
RHEL 9
0:1.26.5-1.el9_8
fixed
golang-tests
RHEL 9
0:1.26.5-1.el9_8
fixed
podman
RHEL 9
6:5.8.2-5.el9_8
fixed
podman-docker
RHEL 9
6:5.8.2-5.el9_8
fixed
podman-plugins
RHEL 9
6:5.8.2-5.el9_8
fixed
podman-remote
RHEL 9
6:5.8.2-5.el9_8
fixed
podman-tests
RHEL 9
6:5.8.2-5.el9_8
fixed
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
amazon-cloudwatch-agent
Amazon Linux 2
0:1.300069.1-1.amzn2
fixed
Amazon Linux 2023
0:1.300069.1-1.amzn2023
fixed
compat-golang-github-cpuguy83-md2man-2-devel
Amazon Linux 2023
0:2.0.2-24.amzn2023.0.9
fixed
credentials-fetcher
Amazon Linux 2023
0:2.0.3-1.amzn2023.0.2
fixed
golang
Amazon Linux 2
0:1.25.12-1.amzn2.0.1
fixed
Amazon Linux 2023
0:1.25.12-1.amzn2023.0.1
fixed
golang-bin
Amazon Linux 2
0:1.25.12-1.amzn2.0.1
fixed
Amazon Linux 2023
0:1.25.12-1.amzn2023.0.1
fixed
golang-docs
Amazon Linux 2
0:1.25.12-1.amzn2.0.1
fixed
Amazon Linux 2023
0:1.25.12-1.amzn2023.0.1
fixed
golang-github-burntsushi-toml
Amazon Linux 2023
0:1.5.0-1.amzn2023.0.3
fixed
golang-github-burntsushi-toml-debuginfo
Amazon Linux 2023
0:1.5.0-1.amzn2023.0.3
fixed
golang-github-burntsushi-toml-debugsource
Amazon Linux 2023
0:1.5.0-1.amzn2023.0.3
fixed
golang-github-burntsushi-toml-devel
Amazon Linux 2023
0:1.5.0-1.amzn2023.0.3
fixed
golang-github-burntsushi-toml-test
Amazon Linux 2023
0:0.2.0-8.amzn2023.0.5
fixed
golang-github-burntsushi-toml-test-debuginfo
Amazon Linux 2023
0:0.2.0-8.amzn2023.0.5
fixed
golang-github-burntsushi-toml-test-debugsource
Amazon Linux 2023
0:0.2.0-8.amzn2023.0.5
fixed
golang-github-burntsushi-toml-test-devel
Amazon Linux 2023
0:0.2.0-8.amzn2023.0.5
fixed
golang-github-cpuguy83-md2man
Amazon Linux 2023
0:2.0.2-24.amzn2023.0.9
fixed
golang-github-cpuguy83-md2man-debuginfo
Amazon Linux 2023
0:2.0.2-24.amzn2023.0.9
fixed
golang-github-cpuguy83-md2man-debugsource
Amazon Linux 2023
0:2.0.2-24.amzn2023.0.9
fixed
golang-github-cpuguy83-md2man-devel
Amazon Linux 2023
0:2.0.2-24.amzn2023.0.9
fixed
golang-misc
Amazon Linux 2
0:1.25.12-1.amzn2.0.1
fixed
Amazon Linux 2023
0:1.25.12-1.amzn2023.0.1
fixed
golang-shared
Amazon Linux 2
0:1.25.12-1.amzn2.0.1
fixed
Amazon Linux 2023
0:1.25.12-1.amzn2023.0.1
fixed
golang-src
Amazon Linux 2
0:1.25.12-1.amzn2.0.1
fixed
Amazon Linux 2023
0:1.25.12-1.amzn2023.0.1
fixed
golang-tests
Amazon Linux 2
0:1.25.12-1.amzn2.0.1
fixed
Amazon Linux 2023
0:1.25.12-1.amzn2023.0.1
fixed
golist
Amazon Linux 2
0:0.10.1-10.amzn2.0.15
fixed
Amazon Linux 2023
0:0.10.4-12.amzn2023.0.11
fixed
golist-debuginfo
Amazon Linux 2
0:0.10.1-10.amzn2.0.15
fixed
Amazon Linux 2023
0:0.10.4-12.amzn2023.0.11
fixed
golist-debugsource
Amazon Linux 2023
0:0.10.4-12.amzn2023.0.11
fixed
runfinch-finch
Amazon Linux 2023
0:1.17.2-1.amzn2023.0.3
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
golang
Azure Linux 3.0
0:1.25.12-1.azl3
fixed
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://go.dev/cl/797880
https://go.dev/issue/79005
https://groups.google.com/g/golang-announce/c/OrmQE_Yp5Sc
https://pkg.go.dev/vuln/GO-2026-4970