CVE-2026-42505
Public on 2026-07-08
Modified on 2026-07-10
Description
Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a disclosure of pre-shared key identities in the unencrypted client hello.
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Core | amazon-cloudwatch-agent | 2026-08-04 | ALAS2-2026-3844 | Fixed |
| Amazon Linux 2023 | amazon-cloudwatch-agent | 2026-08-04 | ALAS2023-2026-2025 | Fixed |
| Amazon Linux 2 - Aws-nitro-enclaves-cli Extra | amazon-ecr-credential-helper | Pending Fix | ||
| Amazon Linux 2 - Docker Extra | amazon-ecr-credential-helper | Pending Fix | ||
| Amazon Linux 2 - Ecs Extra | amazon-ecr-credential-helper | Pending Fix | ||
| Amazon Linux 2023 | amazon-ecr-credential-helper | Pending Fix | ||
| Amazon Linux 2 - Core | amazon-ssm-agent | 2026-09-28 | ALAS2-2026-3933 | Fixed |
| Amazon Linux 2023 | amazon-ssm-agent | 2026-09-29 | ALAS2023-2026-3110 | Fixed |
| Amazon Linux 2 - Core | cni-plugins | Pending Fix | ||
| Amazon Linux 2023 | cni-plugins | Pending Fix | ||
| Amazon Linux 2 - Docker Extra | containerd | 2026-09-10 | ALAS2DOCKER-2026-140 | Fixed |
| Amazon Linux 2 - Ecs Extra | containerd | 2026-09-10 | ALAS2ECS-2026-136 | Fixed |
| Amazon Linux 2 - Aws-nitro-enclaves-cli Extra | containerd | 2026-09-10 | ALAS2NITRO-ENCLAVES-2026-118 | Fixed |
| Amazon Linux 2023 | containerd | 2026-09-10 | ALAS2023-2026-2131 | Fixed |
| Amazon Linux 2023 | credentials-fetcher | 2026-07-20 | ALAS2023-2026-1975 | Fixed |
| Amazon Linux 2 - Core | cri-tools | Pending Fix | ||
| 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 | Pending Fix | ||
| Amazon Linux 2023 | ecs-init | Pending Fix | ||
| Amazon Linux 2023 | git-lfs | Pending Fix | ||
| Amazon Linux 2 - Core | golang | 2026-07-20 | ALAS2-2026-3819 | Fixed |
| Amazon Linux 2023 | golang | 2026-07-20 | ALAS2023-2026-1979 | Fixed |
| Amazon Linux 2023 | golang-github-burntsushi-toml | 2026-07-20 | ALAS2023-2026-1978 | Fixed |
| Amazon Linux 2023 | golang-github-burntsushi-toml-test | 2026-07-20 | ALAS2023-2026-1977 | Fixed |
| Amazon Linux 2023 | golang-github-cpuguy83-md2man | 2026-07-20 | ALAS2023-2026-1989 | Fixed |
| Amazon Linux 2 - Core | golist | 2026-07-20 | ALAS2-2026-3818 | Fixed |
| Amazon Linux 2023 | golist | 2026-07-20 | ALAS2023-2026-1976 | Fixed |
| Amazon Linux 2023 | libcap | Pending Fix | ||
| Amazon Linux 2 - Core | nerdctl | 2026-09-14 | ALAS2-2026-3903 | Fixed |
| Amazon Linux 2023 | nerdctl | 2026-09-14 | ALAS2023-2026-2129 | Fixed |
| Amazon Linux 2 - Aws-nitro-enclaves-cli Extra | oci-add-hooks | Pending Fix | ||
| Amazon Linux 2 - Docker Extra | oci-add-hooks | Pending Fix | ||
| Amazon Linux 2 - Ecs Extra | oci-add-hooks | Pending Fix | ||
| Amazon Linux 2023 | oci-add-hooks | Pending Fix | ||
| Amazon Linux 2 - Core | rclone | Pending Fix | ||
| Amazon Linux 2023 | rclone | 2026-09-29 | ALAS2023-2026-3129 | Fixed |
| Amazon Linux 2 - Docker Extra | runc | 2026-09-14 | ALAS2DOCKER-2026-141 | Fixed |
| Amazon Linux 2 - Ecs Extra | runc | 2026-09-28 | ALAS2ECS-2026-138 | Fixed |
| Amazon Linux 2 - Aws-nitro-enclaves-cli Extra | runc | 2026-09-14 | ALAS2NITRO-ENCLAVES-2026-119 | Fixed |
| Amazon Linux 2023 | runc | 2026-09-14 | ALAS2023-2026-2138 | Fixed |
| Amazon Linux 2 - Docker Extra | runfinch-finch | 2026-08-04 | ALAS2DOCKER-2026-137 | Fixed |
| Amazon Linux 2023 | runfinch-finch | 2026-08-04 | ALAS2023-2026-2023 | Fixed |
| Amazon Linux 2 - Docker Extra | soci-snapshotter | Pending Fix | ||
| Amazon Linux 2023 | soci-snapshotter | Pending Fix | ||
| Amazon Linux 2023 | yq | Pending Fix |
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:L/I:N/A:N |