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Google Cloud Update Version cos-beta-129-19506-120-44

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Update Summary

Includes Cloud Trace observability bucket location expansion, Google Kubernetes Engine Kubernetes 1.36 availability in the Rapid channel, and multiple Container Optimized OS security and kernel fixes.

Update Details

Security

  • Container Optimized OS fixed many Linux kernel CVEs, including CVE-2026-23276, CVE-2026-23375, CVE-2026-23391, CVE-2026-23397, CVE-2026-23398, CVE-2026-23399, CVE-2026-23401, CVE-2026-23412, CVE-2026-23413, CVE-2026-23414, CVE-2026-23417, CVE-2026-23439, CVE-2026-23449, CVE-2026-23452, CVE-2026-23455, CVE-2026-23456, CVE-2026-23457, CVE-2026-23465, CVE-2026-23471, CVE-2026-31392, CVE-2026-31400, CVE-2026-31402, CVE-2026-31403, CVE-2026-31406, CVE-2026-31407, CVE-2026-31413, CVE-2026-31414, CVE-2026-31415, CVE-2026-31416, CVE-2026-31418, CVE-2026-31421, CVE-2026-31423, CVE-2026-31424, CVE-2026-31426, CVE-2026-31427, CVE-2026-31428, CVE-2026-31431, CVE-2026-31434, CVE-2026-31438, CVE-2026-31446, CVE-2026-31447, CVE-2026-31448, CVE-2026-31449, CVE-2026-31450, CVE-2026-31451, CVE-2026-31452, CVE-2026-31453, CVE-2026-31454, CVE-2026-31455, CVE-2026-31466, CVE-2026-31469, CVE-2026-31495, CVE-2026-31496, CVE-2026-31515, CVE-2026-31516, CVE-2026-31519, CVE-2026-31521, CVE-2026-31523, CVE-2026-31525, CVE-2026-31528, CVE-2026-31531, CVE-2026-32280, CVE-2026-32281, CVE-2026-32283, CVE-2026-27140, CVE-2026-27144, CVE-2026-34743, and CVE-2026-4046.
  • Container Optimized OS hardened /etc/machine-id by mounting it with noexec, nosuid, and nodev.
  • Container Optimized OS fixed KCTF-42156f9 in the Linux kernel.
  • Container Optimized OS added support for NVIDIA drivers v580.126.16 and v580.126.20.

Bug Fixes

  • Container Optimized OS fixed an ext4/jbd2 performance regression on CPU Node.
  • Container Optimized OS optimized IOMMU reference counting using atomic64_inc_return().
  • Container Optimized OS serialized sequence allocation to prevent timeouts during concurrent TLB invalidations.
  • Container Optimized OS upgraded sys-apps/makedumpfile to v1.7.9.
  • Container Optimized OS added support for the R595 Nvidia driver production branch.

New Features

  • Cloud Trace observability buckets now support additional locations: australia-southeast1, europe-central2, europe-north1, europe-southwest1, europe-west2, europe-west10, europe-west12, me-central2, northamerica-northeast1, and us-east4.
  • Google Kubernetes Engine Kubernetes 1.36 is now available in the Rapid channel.
  • In Kubernetes 1.36, L4 Internal Load Balancer services use GKE subsetting by default for newly created services.
  • In Kubernetes 1.36, Mutating Admission Policies are generally available.
  • In Kubernetes 1.36, kube-dns switches to a CoreDNS-based implementation.
  • Container Optimized OS enabled CONFIG_SCHED_CLASS_EXT and CONFIG_EXT_GROUP_SCHED.

Hints

  • The GKE 1.36 announcement applies to the Rapid channel.
  • The L4 Internal Load Balancer subsetting change affects only newly created services; existing services continue using Instance Groups.
  • For reCAPTCHA Mobile SDK v18.9.0 on iOS, review score thresholds if false positives increase after the score calibration changes.
  • reCAPTCHA Mobile SDK v18.9.0 adds beta support for visionOS, arm64e, and Enhanced Security Features.
Product Information

Vendor: Google

Product: Cloud

Product type: Other

Platform: Web

Version: cos-beta-129-19506-120-44

Vendor release date: May 1, 2026

Published on updatealert.io: Jun 4, 2026

Description: Cloud platform for compute, data, networking, and developer services.

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