Subject
5 security · 3 deprecations · 1 release for your stack — Zero, week 40
Window 25 Sept 2026 – 2 Oct 2026
Security
A path traversal in containerd's image unpack lets a crafted layer write outside the rootfs. Every managed Kubernetes distribution ships an affected runtime on nodes older than this week's AMIs.
Do: Roll nodes to an image carrying containerd 1.7.24 or 2.0.3. Managed node groups: bump the AMI release.
Because you follow AWS, Amazon EKSGitHub Advisory DatabaseCVE-2026-31337Clusters created between two API releases got an access entry granting cluster-admin to the creating principal's role, not the user. Existing clusters are unaffected until you add a new access entry.
Do: Audit access entries on clusters created since 2026-08-20 and scope them down.
Because you follow AWS, Amazon EKSAWS Security BulletinsA repository's .cursor/mcp.json was started without a trust prompt, so cloning a malicious repo could run a command. Fixed in 1.6.2 with a per-workspace approval.
Do: Update Cursor and review MCP servers listed in any repo you cloned recently.
Because you follow CursorCursor ChangelogCVE-2026-30412Affects Ubuntu 22.04 and 24.04 servers negotiating RSA key exchange. Services that already disable TLS 1.2 RSA ciphersuites are not exposed.
Do: apt upgrade libssl3 and restart services that link it; check nginx ciphersuite config.
Because you follow Ubuntu 22.04 LTSUbuntu Security NoticesCVE-2026-27301A search_path issue during CREATE EXTENSION let a low-privilege role run code as the installing superuser. RDS and Cloud SQL maintenance windows carry the fix this month.
Do: Apply the minor release; on managed services, do not defer the maintenance window.
Because you follow PostgreSQL 15, AWSPostgreSQL AnnounceCVE-2026-28870
Deprecations
EKS extended support for 1.31 costs 6× the standard rate from the same date. GKE auto-upgrades clusters in the regular channel.
Do: Plan the 1.32 → 1.33 hop; two minors at once needs an API deprecation check. · by 28 Oct 2025
Because you follow AWS, Amazon EKSendoflife.dateNo further security fixes after this date. Lambda's python3.9 runtime is on a deprecation path with the same deadline; new function creation stops first.
Do: Move to 3.12 or 3.13. Check Lambda runtimes and container base images. · by 31 Oct 2025
Because you follow Python, AWSPython InsiderLast minor release in November. RDS moves 13 to extended support with an hourly surcharge; Cloud SQL forces an upgrade after a grace period.
Do: Upgrade to 16 or 17. Test logical replication first if you use it. · by 13 Nov 2025
Because you follow PostgreSQL 15, AWSendoflife.date
Releases
Import blocks now generate configuration for the full AWS provider surface, and the CLI warns when state was written by a newer binary.
Because you follow Terraform, AWS, Amazon EKSHashiCorp Releases