CVE-2026-39834
Public on 2026-05-22
Modified on 2026-05-22
Description
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.
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Core | amazon-cloudwatch-agent | Pending Fix | ||
| Amazon Linux 2023 | amazon-cloudwatch-agent | Pending Fix | ||
| Amazon Linux 2 - Aws-nitro-enclaves-cli Extra | amazon-ecr-credential-helper | Not Affected | ||
| Amazon Linux 2 - Docker Extra | amazon-ecr-credential-helper | Not Affected | ||
| Amazon Linux 2 - Ecs Extra | amazon-ecr-credential-helper | Not Affected | ||
| Amazon Linux 2023 | amazon-ecr-credential-helper | Not Affected | ||
| Amazon Linux 2 - Core | amazon-ssm-agent | Pending Fix | ||
| Amazon Linux 2023 | amazon-ssm-agent | Pending Fix | ||
| Amazon Linux 2 - Core | cni-plugins | Not Affected | ||
| Amazon Linux 2023 | cni-plugins | Not Affected | ||
| Amazon Linux 2 - Aws-nitro-enclaves-cli Extra | containerd | Pending Fix | ||
| Amazon Linux 2 - Docker Extra | containerd | Pending Fix | ||
| Amazon Linux 2 - Ecs Extra | containerd | Pending Fix | ||
| Amazon Linux 2023 | containerd | Pending Fix | ||
| Amazon Linux 2023 | credentials-fetcher | Not Affected | ||
| Amazon Linux 2 - Core | cri-tools | Not Affected | ||
| Amazon Linux 2 - Aws-nitro-enclaves-cli Extra | docker | Pending Fix | ||
| Amazon Linux 2 - Docker Extra | docker | Pending Fix | ||
| Amazon Linux 2 - Ecs Extra | docker | Pending Fix | ||
| Amazon Linux 2023 | docker | Pending Fix | ||
| Amazon Linux 2 - Ecs Extra | ecs-init | Not Affected | ||
| Amazon Linux 2023 | ecs-init | Not Affected | ||
| Amazon Linux 2023 | git-lfs | Pending Fix | ||
| Amazon Linux 2 - Core | golang | Not Affected | ||
| Amazon Linux 2023 | golang | Not Affected | ||
| Amazon Linux 2023 | golang-github-burntsushi-toml | Not Affected | ||
| Amazon Linux 2023 | golang-github-burntsushi-toml-test | Not Affected | ||
| Amazon Linux 2023 | golang-github-cpuguy83-md2man | Not Affected | ||
| Amazon Linux 2 - Core | golist | Not Affected | ||
| Amazon Linux 2023 | golist | Not Affected | ||
| Amazon Linux 2023 | libcap | Not Affected | ||
| Amazon Linux 2 - Core | nerdctl | Pending Fix | ||
| Amazon Linux 2023 | nerdctl | Pending Fix | ||
| Amazon Linux 2 - Aws-nitro-enclaves-cli Extra | oci-add-hooks | Not Affected | ||
| Amazon Linux 2 - Docker Extra | oci-add-hooks | Not Affected | ||
| Amazon Linux 2 - Ecs Extra | oci-add-hooks | Not Affected | ||
| Amazon Linux 2023 | oci-add-hooks | Not Affected | ||
| Amazon Linux 2 - Core | rclone | Pending Fix | ||
| Amazon Linux 2023 | rclone | Pending Fix | ||
| Amazon Linux 2 - Aws-nitro-enclaves-cli Extra | runc | Not Affected | ||
| Amazon Linux 2 - Docker Extra | runc | Not Affected | ||
| Amazon Linux 2 - Ecs Extra | runc | Not Affected | ||
| Amazon Linux 2023 | runc | Not Affected | ||
| Amazon Linux 2 - Docker Extra | runfinch-finch | Pending Fix | ||
| Amazon Linux 2023 | runfinch-finch | Pending Fix | ||
| Amazon Linux 2 - Docker Extra | soci-snapshotter | Not Affected | ||
| Amazon Linux 2023 | soci-snapshotter | Not Affected | ||
| Amazon Linux 2023 | yq | Not Affected |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 5.3 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |