CVE-2026-39834

EUVD-2026-31400
When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty packets without making progress. The size comparison now uses int64 to prevent truncation.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.1 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 37%
Affected Products (NVD)
VendorProductVersion
golangcrypto
𝑥
< 0.52.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
golang-go.crypto
bookworm
vulnerable
bullseye
postponed
forky
1:0.53.0-1
fixed
sid
1:0.53.0-1
fixed
trixie
vulnerable
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
amazon-ssm-agent
suse enterprise sap 15 SP4
3.3.4624.0-150000.5.37.1
fixed
suse enterprise sap 15 SP5
3.3.4624.0-150000.5.37.1
fixed
suse enterprise sap 15 SP6
3.3.4624.0-150000.5.37.1
fixed
suse enterprise sap 15 SP7
3.3.4624.0-150000.5.37.1
fixed
suse enterprise server 15 SP4
3.3.4624.0-150000.5.37.1
fixed
suse enterprise server 15 SP5
3.3.4624.0-150000.5.37.1
fixed
suse enterprise server 15 SP6
3.3.4624.0-150000.5.37.1
fixed
suse enterprise server 15 SP7
3.3.4624.0-150000.5.37.1
fixed
apptainer
suse enterprise server 15 SP6
1.5.1-150600.4.24.1
fixed
apptainer-sle15_6
suse enterprise server 15 SP6
1.5.1-150600.4.24.1
fixed
buildah
suse enterprise sap 15 SP7
1.35.5-150500.3.62.1
fixed
suse enterprise server 15 SP4
1.35.5-150400.3.68.1
fixed
suse enterprise server 15 SP5
1.35.5-150500.3.62.1
fixed
suse enterprise server 15 SP6
1.35.5-150500.3.62.1
fixed
suse enterprise server 15 SP7
1.35.5-150500.3.62.1
fixed
google-guest-agent
suse enterprise sap 15 SP4
20260529.00-150000.1.70.1
fixed
suse enterprise sap 15 SP5
20260529.00-150000.1.70.1
fixed
suse enterprise sap 15 SP6
20260529.00-150000.1.70.1
fixed
suse enterprise sap 15 SP7
20260529.00-150000.1.70.1
fixed
suse enterprise server 15 SP4
20260529.00-150000.1.70.1
fixed
suse enterprise server 15 SP5
20260529.00-150000.1.70.1
fixed
suse enterprise server 15 SP6
20260529.00-150000.1.70.1
fixed
suse enterprise server 15 SP7
20260529.00-150000.1.70.1
fixed
google-osconfig-agent
suse enterprise sap 15 SP4
20260615.01-150000.1.55.1
fixed
suse enterprise sap 15 SP5
20260615.01-150000.1.55.1
fixed
suse enterprise sap 15 SP6
20260615.01-150000.1.55.1
fixed
suse enterprise sap 15 SP7
20260615.01-150000.1.55.1
fixed
suse enterprise server 15 SP4
20260615.01-150000.1.55.1
fixed
suse enterprise server 15 SP5
20260615.01-150000.1.55.1
fixed
suse enterprise server 15 SP6
20260615.01-150000.1.55.1
fixed
suse enterprise server 15 SP7
20260615.01-150000.1.55.1
fixed
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
containerd
Amazon Linux 2023
0:2.2.4-1.amzn2023.0.1
fixed
containerd-debuginfo
Amazon Linux 2023
0:2.2.4-1.amzn2023.0.1
fixed
containerd-debugsource
Amazon Linux 2023
0:2.2.4-1.amzn2023.0.1
fixed
containerd-stress
Amazon Linux 2023
0:2.2.4-1.amzn2023.0.1
fixed
containerd-stress-debuginfo
Amazon Linux 2023
0:2.2.4-1.amzn2023.0.1
fixed
nerdctl
Amazon Linux 2
0:2.2.2-1.amzn2.0.3
fixed
Amazon Linux 2023
0:2.2.2-1.amzn2023.0.3
fixed
nerdctl-debuginfo
Amazon Linux 2
0:2.2.2-1.amzn2.0.3
fixed
rclone
Amazon Linux 2023
0:1.74.2-80.amzn2023
fixed
rclone-debuginfo
Amazon Linux 2023
0:1.74.2-80.amzn2023
fixed
rclone-debugsource
Amazon Linux 2023
0:1.74.2-80.amzn2023
fixed
runfinch-finch
Amazon Linux 2023
0:1.17.1-1.amzn2023.0.2
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
cert-manager
Azure Linux 3.0
0:1.12.15-8.azl3
fixed
cf-cli
Azure Linux 3.0
0:8.7.11-6.azl3
fixed
docker-buildx
Azure Linux 3.0
0:0.14.0-13.azl3
fixed
docker-compose
Azure Linux 3.0
0:2.27.0-11.azl3
fixed
gh
Azure Linux 3.0
0:2.62.0-16.azl3
fixed
kubernetes
Azure Linux 3.0
0:1.30.10-25.azl3
fixed
kubevirt
Azure Linux 3.0
0:1.7.1-5.azl3
fixed
moby-engine
Azure Linux 3.0
0:25.0.3-18.azl3
fixed
nvidia-container-toolkit
Azure Linux 3.0
0:1.17.8-3.azl3
fixed
packer
Azure Linux 3.0
0:1.9.5-14.azl3
fixed
telegraf
Azure Linux 3.0
0:1.31.0-21.azl3
fixed
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://go.dev/cl/781663
https://go.dev/issue/79567
https://groups.google.com/g/golang-announce/c/a082jnz-LvI
https://pkg.go.dev/vuln/GO-2026-5020