**Related issue:** Resolves #35173 # macOS 26 Tahoe CIS benchmark v1.0.0 (new benchmark) Adds a brand-new policy set covering the **CIS Apple macOS 26 Tahoe Benchmark, v1.0.0** under `ee/cis/macos-26/`. Follows the same layout as `macos-13`/`-14`/`-15` (`cis-policy-queries.yml`, `README.md`, `test/scripts/`, `test/profiles/`). ## Coverage | Section | Title | Status | |---|---|---| | 1 | Install Updates, Patches and Additional Security Software | complete (6/6 automated) | | 2 | System Settings | complete (all automated across §2.1–§2.18) | | 3 | Logging and Auditing | complete (5/5 automated) | | 4 | Network Configurations | complete (3/3 automated) | | 5 | System Access, Authentication and Authorization | complete (19/19 automated) | | 6 | Applications | complete (7/7 automated) | | 7 | Supplemental | skipped (per Fleet convention) | Total automated policies shipped: **89**. Manual-assessment recommendations are documented in `ee/cis/macos-26/README.md` under **Limitations**. ## Notable query/format choices - **Combined-key profiles per CIS instructions.** §2.2.1+§2.2.2 (Firewall + Stealth Mode) are shipped as a single `2.2.1-and-2.2.2.mobileconfig` because CIS explicitly requires both keys in the same profile. §2.6.5 (Gatekeeper) and §2.11.2 (screensaver wake-password + delay) follow the same pattern. - **§2.5.2.1 (Siri)** uses the new `allowAssistant=false` key on `com.apple.applicationaccess`, replacing the deprecated `com.apple.ironwood.support` payload from earlier benchmarks. - **§2.6.3.2** uses the spaced literal key `Siri Data Sharing Opt-In Status` (integer 2) on `com.apple.assistant.support` — the v1.0.0 PayloadType move from `com.apple.applicationaccess`. - **§5.1.6, §5.1.7, §3.1, §5.7** use fleetd-only osquery tables (`find_cmd`, `authdb`, `pwd_policy`, `dscl`, etc.) and are flagged `(Fleetd Required)` in the policy descriptions. - **§2.10.1.2** (Apple Silicon sleep ≤15 min) default-passes on Intel hosts via a `system_info.cpu_type` check. ## Test artifacts added | Type | Count | Location | |---|---|---| | Pass scripts | 48 | `ee/cis/macos-26/test/scripts/CIS_*_pass.sh` | | Fail scripts | 46 | `ee/cis/macos-26/test/scripts/CIS_*_fail.sh` | | Pass-only scripts | 2 | `CIS_1.1.sh`, `CIS_5.1.6.sh` | | MDM profiles | 37 | `ee/cis/macos-26/test/profiles/*.mobileconfig` | Profile-only recommendations (§2.3.1.x AirDrop/AirPlay, §2.5.x Apple Intelligence, §2.6.3.x Analytics, §6.x Safari/Terminal) ship with a `.mobileconfig` only and no script counterpart, since CIS marks them as configurable solely via profile. ## Documentation updates | File | Change | |---|---| | `ee/cis/macos-26/README.md` | New file — coverage table, limitations, per-section notes (query patterns, fleetd dependencies, FDA requirements). | | `ee/cis/CIS-BENCHMARKS.md` | Added `macos-26/` to the directory layout; updated **Query patterns** doc to include the `EXISTS`/`NOT EXISTS` user-vs-system-scope guidance and `username = ''` notes. | | `ee/cis/prompt.md` | Refreshed authoring prompts with macOS-26 conventions (combined-key profiles, fleetd-table flagging). | | `tools/cis/cis-test-runner.py` | Minor adjustments to support the new benchmark directory. | | `changes/35173-cis-macos-26-v1` | User-visible change note. | <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **New Features** * Added macOS 26 CIS Benchmark v1.0.0 with comprehensive configuration profiles to enforce recommended system and app settings (updates, firewall/stealth, privacy, backups, FileVault, Safari, Terminal, etc.). * **Tests** * Added extensive pass/fail remediation and validation scripts for CIS controls across macOS subsystems; test runner updated to include macOS 26 support and mark an SSH-related control as manual. <!-- end of auto-generated comment: release notes by coderabbit.ai -->
News · Report a bug · Handbook · Why open source? · Art
Open-source platform for IT and security teams with thousands of computers. Designed for APIs, GitOps, webhooks, YAML, and humans.
What's it for?
Organizations like Fastly and Gusto use Fleet for vulnerability reporting, detection engineering, device management (MDM), device health monitoring, posture-based access control, managing unused software licenses, and more.
Explore data
To see what kind of data you can use Fleet to gather, check out the table reference documentation.
Out-of-the-box policies
Fleet includes out-of-the box support for all CIS benchmarks for macOS and Windows, as well as many simpler queries.
Take as much or as little as you need for your organization.
Supported platforms
Here are the platforms Fleet currently supports:
- Linux (all distros)
- macOS
- Windows
- Chromebooks
- Amazon Web Services (AWS)
- Google Cloud (GCP)
- Azure (Microsoft cloud)
- Data centers
- Containers (kube, etc)
- Linux-based IoT devices
Lighter than air
Fleet is lightweight and modular. You can use it for security without using it for MDM, and vice versa. You can turn off features you are not using.
Openness
Fleet is dedicated to flexibility, accessibility, and clarity. We think everyone can contribute and that tools should be as easy as possible for everyone to understand.
Good neighbors
Fleet has no ambition to replace all of your other tools. (Though it might replace some, if you want it to.) Ready-to-use, enterprise-friendly integrations exist for Snowflake, Splunk, GitHub Actions, Vanta, Elastic Jira, Zendesk, and more.
Fleet plays well with Munki, Chef, Puppet, and Ansible, as well as with security tools like Crowdstrike and SentinelOne. For example, you can use the free version of Fleet to quickly report on what hosts are actually running your EDR agent.
Free as in free
The free version of Fleet will always be free. Fleet is independently backed and actively maintained with the help of many amazing contributors.
Longevity
The company behind Fleet is founded (and majority-owned) by true believers in open source. The company's business model is influenced by GitLab (NYSE: GTLB), with great investors, happy customers, and the capacity to become profitable at any time.
In keeping with Fleet's value of openness, Fleet Device Management's company handbook is public and open source. You can read about the history of Fleet and osquery and our commitment to improving the product.
Is it any good?
Fleet is used in production by IT and security teams with thousands of laptops and servers. Many deployments support tens of thousands of hosts, and a few large organizations manage deployments as large as 400,000+ hosts.
Chat
Please join us in MacAdmins Slack or in osquery Slack.
The Fleet community is full of kind and helpful people. Whether or not you are a paying customer, if you need help, just ask.
Contributing
The landscape of cybersecurity and IT is too complex. Let's open it up.
Contributions are welcome, whether you answer questions on Slack / GitHub / StackOverflow / LinkedIn / Twitter, improve the documentation or website, write a tutorial, give a talk at a conference or local meetup, give an interview on a podcast, troubleshoot reported issues, or submit a patch. The Fleet code of conduct is on GitHub.
What's next?
To see what Fleet can do, head over to fleetdm.com and try it out for yourself, grab time with one of the maintainers to discuss, or visit the docs and roll it out to your organization.
Production deployment
Fleet is simple enough to spin up for yourself. Or you can have us host it for you. Premium features are available either way.
Documentation
Complete documentation for Fleet can be found at https://fleetdm.com/docs.
License
The free version of Fleet is available under the MIT license. The commercial license is also designed to allow contributions to paid features for users whose employment agreements allow them to contribute to open source projects. (See LICENSE.md for details.)
Fleet is built on osquery, nanoMDM, Nudge, and swiftDialog.