CVE-2026-39835
Public on 2026-05-22
Modified on 2026-05-22
Description
SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate. CertChecker now returns an error instead of panicking when these callbacks are nil.
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 | 2026-06-08 | ALAS2-2026-3334 | Fixed |
| Amazon Linux 2023 | nerdctl | 2026-06-08 | ALAS2023-2026-1788 | Fixed |
| 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 | 2026-06-08 | ALAS2023-2026-1810 | Fixed |
| 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 | 2026-06-08 | ALAS2DOCKER-2026-128 | Fixed |
| Amazon Linux 2023 | runfinch-finch | 2026-06-08 | ALAS2023-2026-1809 | Fixed |
| 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:L/PR:N/UI:N/S:U/C:N/I:N/A:L |