AUTOMATICALLY VERIFIEDOFFICIAL VENDOR SOURCECOLLECTED 30 SEP 2026

Google Container-Optimized OS (COS) Lifecycle policy

Google Container-Optimized OS (COS) is tracked by BlackTree as an operating system or system software product. Its lifecycle page separates release identity, maintenance and security boundaries using the publisher's registered source.

Evidence status

This record passed BlackTree's automatic primary-source checks with a confidence score of 82. It is returned for operational research without requiring routine manual approval. Confirm edition and deployment applicability before acting.

This discovery does not establish a product-specific support or retirement date. A missing date does not mean support continues.

Product overview

Main capabilities

Application and workload execution
Hardware, networking and storage management
Security updates and platform maintenance

Typical use

Used on endpoints, servers, appliances, virtual machines or cloud instances.

Deployment

Installed on physical or virtual systems, or delivered as an appliance or cloud image.

This category-level context is generated from the registered product identity. Confirm exact product capabilities on the publisher's page .

Collected lifecycle data

Product	Google Container-Optimized OS (COS)
Release	Lifecycle policy
Start or release	Not extracted
Lifecycle boundary	Continuous or not dated in the source
Date precision	Unknown

Known exploited vulnerabilities

Catalogue updated 29 Sep 2026

These are product-family matches in the CISA Known Exploited Vulnerabilities catalogue. Confirm the affected product version in the vendor advisory.

No CISA known-exploited entries currently match this mapped product family.

This does not mean the product has no vulnerabilities.

Package vulnerability advisories

OSV advisories are matched through the registered package URL. A package-family match does not prove that the installed release is affected. Check the affected and fixed versions before remediation.

No package advisories have been linked for this product identity.

This is not evidence that the product has no vulnerabilities.

Source evidence

PRIMARYPartial

Google Container-Optimized OS (COS) official lifecycle source

All changes in the image are documented on a dedicated release notes page. | Deprecation | At the end of a milestone's support window, the corresponding cos-[MILESTONE]-lts and cos-arm64-[MILESTONE]-lts families are deprecated. Specifically, we set the DEPRECATED flag on images in that milestone and those images stop appearing in the active list of images in the cos-cloud project. | Deprecated images are still accessible and usable when accessed directly by name using the images get API . However, any issues with those images might not be fixed or will only be fixed in newer milestones. Issues reported against deprecated images may be fixed only in newer image milestones. To continue having access to bug fixes and security patches, upgrade to one of the newer active milestones. | Contact us | For technical support: Contact Google Cloud support | StackOverflow: google-container-os tag

Official vendor lifecycle or product-change property. Extracted records require human review.

First collected 12 Sep 2026 · Last collected 30 Sep 2026 · Review state accepted

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