rules

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Custom auto-triage rules for Dependabot alerts (public beta)

Auto-triage rules are a powerful tool to help you reduce false positives and alert fatigue substantially, while better managing your alerts at scale.

Starting today, you can now create your own custom rules to control how Dependabot auto-dismisses and reopens alerts – so you can focus on the alerts that matter, without worrying about the alerts that don’t.

What’s changing?

For any existing or future alerts that match a custom rule, Dependabot will perform the selected behavior accordingly. You can proactively filter out false positives, snooze alerts until patch release, and – as rules apply to both future and current alerts – manage existing alerts in bulk.

Frequently asked questions

Why is GitHub making this change?

At GitHub, we’ve been thinking deeply about how to responsibly address long-running issues around alert fatigue and false positives. Rather than over-indexing on one criterion like reachability or dependency scope, we believe that a responsibly-designed solution should be able to detect and reason on a rich set of complex, contextual alert metadata.

That’s why, moving forward, we’re releasing a series of ships powered by an underlying, all-new, flexible and powerful alert rules engine. Our first ship – Dependabot presets – leveraged our rules engine with GitHub-curated vulnerability patterns. Today’s ship exposes our rules engine so you can create your own rules, too.

Which criteria are supported?

Rules can be created across the following attributes:

Attribute Description
severity Alert severity, based on CVSS base score, across the following values: low, medium, high, and critical.
scope Scope of the dependency: development (devDependency) or runtime (production).
package-name Packages, listed by package name.
cwe CWEs, listed by CWE ID.
ecosystem Ecosystems, listed by ecosystem name.
manifest Manifest files, listed by manifest path.

What behaviors are supported?

Create or edit a custom rule

Today’s ship covers support for auto-dismissing alerts indefinitely as well as snoozing alerts until patch. Auto-dismissing ensures all activity is easily visible and can be caught by existing reporting systems and workflows, while also ensuring that alerts can be reintroduced if metadata across the alert changes.

How will this activity be reported?

Auto-dismissal activity is shown in webhooks, REST, GraphQL, and the audit log for Dependabot alerts. Alerts are dismissed without a notification or new pull request and appear as a special timeline event. As these alerts are closed, you’ll still be able to review any auto-dismissed alerts with the resolution:auto-dismissed filter.

Who can create and modify rules?

Auto-triage rules are free for open source repositories. Anyone who can enable Dependabot alerts for a public repository will be able to create custom rules for it. Customers of GitHub Advanced Security can create and manage custom rules across private repositories.

How do I reopen an automatically dismissed alert?

Like any manually dismissed alert, you can reopen an auto-dismissed alert from the alert list view or details page. This specific alert won’t be auto-dismissed again (by any other auto-dismiss rule).

What happens if alert metadata changes or advisory information is withdrawn?

Dependabot recognizes and immediately responds to any changes to metadata which void auto-dismissal logic. For example, if you change the dependency scope and the alert no longer meets the criteria to be auto-dismissed, the alert will automatically reopen.

How do I learn more?

How do I provide feedback?

Let us know what you think by providing feedback — we’re listening!

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Repository Rules are generally available

Repository rules are now generally available on GitHub.com.

Screenshot of Repository Rules overview

Repository rules allow you to easily govern protections for branches and tags on your repositories. Repository collaborators also gain access to see what rules are in place via the Web, git client, and the GitHub CLI.

For GitHub Enterprise Cloud customer, you gain the ability to enforce branch and tag protections across repositories in your organization. As well as insights on rule enforcement, evaluation mode to test rules before enforcing them and governance around commit messages.

Check out the blog post to learn more about repository rules. And if you have feedback, please share and let us know in our feedback discussion.

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Repository Rules public beta updates

We are introducing a number of enhancements, bug fixes and a breaking API change to repository rules.

1. UI Updates
* Added a repository picker to target select repositories for organization rulesets.
* Improvements to rule violations in the WebUI and git client.

2. Ruleset Bypass updates

  • Bypass can be limited to pull request exemptions only.
  • Single UI for bypass, collapsing bypass mode, and bypass list into one experience.
  • Support for using repository roles as a bypass type
  • Integrations (bots/apps) are now bypassable at the org.

3. API Enhancements

  • Add fields for created and updated date
  • Permission changes so all repo contributors can query the API for relevant rules enforced on branches.

4. Bug fixes

  • Linear merge history could block bypass
  • Branches could not always be created when using commit metadata rules
  • Tag protections were failing for apps

5. API Changes

  • GraphQL changes will be delayed by 24-72 hours.
  • Breaking Change Remove bypass_mode from the Ruleset object and input
  • Breaking Change Add bypass_mode as a required field for bypass actors to indicate if an actor can “always” bypass a ruleset or can only bypass for a “pull_request”
  • Breaking Change for GraphQL Change bypass_actor_ids to a new bypass_actors object on the create and update mutations that can accept repository roles and organization admins
  • Add repository_role_database_id, repository_role_name, and organization_admin fields to RepositoryRulesetBypassActor to indicate when the bypass actor is a role or org admin bypass
  • “get rules for a branch” REST API endpoint now returns ruleset source info for each rule.
  • “get a repo ruleset” REST API endpoint now has a current_user_can_bypass field that indicates whether the user making the request can bypass the ruleset.
  • source field for rulesets returned via the REST API will now properly contain the repo in owner/name syntax when the ruleset is configured on a repository, rather than just the repository’s name.

We want to hear from you on how we can improve repository rules! Join the conversation in the repository rules public beta discussion.

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Security enhancements to required approvals on pull requests

Announcing important changes to what it means for a pull request to be 'approved'.

If you use pull requests with protected branches, there are some important security improvements rolling out now that may impact your workflow:

  • Merge commits created locally and pushed to a protected branch will be rejected if the contents differ from the system-created merge.
  • The branch protection for dismissing stale reviews now dismisses approvals whenever a merge base changes after a review.
  • A pull request approval now only counts towards the pull request it was submitted against.

Note: You may see some older approvals dismissed as we rollout these changes.

Read on to learn more about the specific changes:

User-created merges must have the same contents as the system-created merge.

Previously, it was possible for users to make unreviewed changes to a protected branch, by creating the merge commit locally and pushing it to the server. The merge would be accepted, so long as the parents commits were set correctly.

Going forward, manually creating the merge commit for a pull request and pushing it directly to a protected branch will only succeed if the contents of the merge exactly match the system-generated merge for the pull request. This new check will be enforced on branches where the branch protections mentioned earlier are enabled.

Pull request approvals will become stale if the merge base changes
A pull request approval will be marked as stale when the merge base changes after a review is submitted.

The merge base of a pull request is the closest common ancestor of both the target and source branches for that pull request. It is often (but not always) the commit where a user has branched off the mainline development and started working on a topic branch:

228341522-a954ade3-a4e2-4703-8920-8c3220e2ff0d

When "dismiss stale approvals" is enabled, the review will be dismissed and needs a re-approval. If branch protection rules specify that every push needs to be reviewed by a second contributor, a change in the merge base will require fresh approvals.

Merge bases changing under a pull request will preserve approvals in most situations where no new changes are introduced.

Pull requests no longer combine approvals.
Previously it was possible for a branch protected by "required pull request review" to be merged without an approved PR. This was possible because approvals were gathered across multiple independent pull requests if the feature branches pointed to the same commit as well as targeting the same branch.

We appreciate your feedback in GitHub's public feedback discussions.

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Enhancements for admins bypassing branch protections on github.com

When editing a file on github.com, repo admins, actors with the bypass branch protections permissions, and actors in bypass lists on branch protections will now default to creating a new branch instead for directly committing. You can still commit directly to a protected branch, but doing so will add notifications in-line highlighting that some rules will be bypassed.

Historically the default behavior was to push through any branch protections with no notifications they were being bypassed.

Now we recommend creating a branch for admins eligible to bypass branch protection rules. This behavior occurs when adding new files to a repository as well as during pull requests.

Screenshot of commiting directly to a repository
Screenshot of bypassing rules in a PR>

We appreciate your feedback in GitHub's public feedback discussions

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Introducing Repository Rules Public Beta

Today we are announcing the public beta of repository rules! 🎉

Repository rules are GitHub’s next evolution of branch protections to help make your repositories more secure and compliant at scale.

Screenshot of ruleset overview

Rules allow you to easily define protections for branches and tags in your repositories and, if you are a GitHub Enterprise Cloud customer, to enforce them across your organization. It is also easier for everyone collaborating on your repositories to know what rules are in place.

Creating rules

Screenshot of creating a ruleset

At the core of rules is the ability to define rulesets. A ruleset is a collection of rules that are enforced together. For example, you could require that all commits to a branch are signed and that those commits have two reviewers. Rulesets can also be applied to tags, allowing you to enforce rules on releases.

The ruleset page is the central place to view and manage all the rules for a repository. It shows the rules that are currently in place and allows you to add new rulesets or edit existing ones.

When creating a ruleset, you define its enforcement status as active or disabled. Active rulesets must pass for a commit to be merged, while disabled rulesets are not enforced; they will not prevent merges but allow admins to craft rules before enforcing them. Enterprise Cloud customers can also evaluate rulesets: a “dry run” mode for understanding the impact of new rules before they are active and enforced.

It’s also easier to target branches and tags in rulesets, with options to select the default branch, all branches, and branches or tags that match an fnmatch pattern. You can add multiple patterns to a ruleset to apply it to different branch and tag naming styles.

Viewing the rules

You can always know what rules are in place for a repository.

Anyone with read access to a repository can view its rules and what they mean. The rulesets overview is linked from the branches page by clicking the shield icon, and from a pull request, and from the output of the Git CLI when rules block a push.

From here, you can filter rules by branches or tags to understand how a rule might be enforced on your next push.

Screenshot of read only view of rules

Getting Started

Repository rules are now available to all GitHub cloud customers. To get started, visit the documentation to learn how to enable and use rules. For Enterprise Cloud customers, visit the documentation to learn about organization rulesets and more.

We want to hear from you on how we can improve repository rules! Join the conversation in the repository rules public beta discussion.

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