GitHub Repository Permissions and Access Review SOP
GitHub Repository Permissions and Access Review SOP template for reviewing repo access, branch protection, CODEOWNERS coverage, and permission changes. Use it to document approvals, spot deviations, and keep access aligned with policy.
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Overview
This SOP template covers the controlled review of GitHub repository permissions, branch protection rules, CODEOWNERS coverage, and access changes. It is designed for teams that need a repeatable way to confirm who can read, write, approve, or administer a repository, and whether the repository’s safeguards still match the approved access model.
Use it when you need evidence for scheduled access audits, onboarding or offboarding changes, or a review after a permission exception. It is especially useful for repositories that contain production code, release branches, infrastructure definitions, or other critical paths where an incorrect permission can create a non-conformance or a security gap.
Do not use this template as a substitute for your identity provider, incident response, or legal approval process. It is not the right fit for one-off informal checks with no documented approval path, and it should not be used to bypass a formal change process for high-risk access changes. If your organization has no defined repository ownership, approval authority, or escalation path, those gaps should be resolved before the SOP is rolled out.
The template is structured to move from scope confirmation to evidence collection, verification, exception handling, and closure. That makes it useful both as a recurring audit record and as a working procedure for day-to-day access decisions.
Standards & compliance context
- The template supports ISO 9001-style documented information by capturing review scope, evidence, approval, and outcome in a repeatable record.
- It helps demonstrate access governance and change control practices commonly expected in security programs and audit-ready engineering environments.
- For repositories tied to regulated products or safety-related software, the review record can support traceability, verification, and escalation expectations.
- If your organization uses ITIL-style change management, this SOP can be linked to the access request or change record as supporting evidence.
- Where branch or code ownership controls affect hazardous or production-impacting work, align the review with internal approval and non-conformance handling rules.
General regulatory context for orientation only — verify current requirements with counsel or the relevant agency before relying on this template for compliance.
What's inside this template
Steps
This section matters because it turns the review into a repeatable sequence with clear actors, verification points, and escalation triggers.
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Confirm the review scope and repository list
The repository administrator verifies the review period, the repositories in scope, and the reason for the access review. Record the following: - Repository name and owner - Review type: periodic review, new access request, permission change, or audit follow-up - Review period start and end dates - Required approver or control owner If the repository is not in scope, escalate to the control owner and stop the review.
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Collect the current access and control evidence
The repository administrator exports or records the current repository collaborators, teams, roles, branch protection rules, and CODEOWNERS file location. Capture evidence for: - Direct collaborators and their permission levels - Teams with repository access - Branch protection rules on protected branches - CODEOWNERS file presence and path - Recent access changes since the last review
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Verify repository permissions against approved access
The security administrator compares each collaborator and team permission against the approved access list. Verify that: - Each user has a documented business need - Each permission level matches the approved role - No inactive, transferred, or terminated users retain access - No direct admin access exists unless explicitly approved Record any deviation as a non-conformance and assign an owner for remediation.
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Review branch protection rules on protected branches
The repository administrator verifies that protected branches have the required controls enabled. Check for: - Required pull request reviews - Required status checks before merge - Restriction on force pushes - Restriction on branch deletion - Required review from code owners where applicable If a required control is missing, escalate to the repository owner and document the deviation.
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Confirm CODEOWNERS coverage for critical paths
The engineering manager verifies that the CODEOWNERS file covers critical directories, sensitive files, and release paths. Confirm that: - The CODEOWNERS file exists in the expected location - Critical paths are assigned to competent owners - Ownership is current for active teams and services - No critical path is left without an owner If coverage is incomplete, create a non-conformance and assign corrective action.
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Evaluate access requests and permission changes
The repository administrator reviews any pending access request or permission change. Assess whether the request has: - Business justification - Least-privilege alignment - Manager or control-owner approval - Time-bound access if elevated permissions are requested
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Apply the approved permission change
The repository administrator grants, modifies, or revokes the repository permission exactly as approved. Apply the minimum access required and confirm that the change is reflected in GitHub. If elevated access is granted, set a review date or expiration date where the platform supports it.
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Escalate unresolved deviations or access exceptions
The security administrator escalates any unresolved deviation, missing approval, or control gap to the repository owner and compliance owner. Escalate when: - A user retains access without a valid business need - Branch protection is missing a required control - CODEOWNERS coverage is incomplete for critical paths - A permission change exceeds approved tolerance Do not close the review until the escalation owner records a disposition.
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Record the review result and retain evidence
The repository administrator records the review outcome in the change log or ticketing system. Include: - Review date and reviewer name - Repositories reviewed - Permissions verified or changed - Branch protection status - CODEOWNERS coverage status - Deviations, non-conformances, and escalations - Final approval or closure note Retain evidence according to the organization's documented information retention requirements.
How to use this template
- 1. The reviewer confirms the review scope, lists the repositories and protected branches in scope, and records the approval source for the review.
- 2. The reviewer collects current access evidence, branch protection settings, CODEOWNERS files, and any open access request tickets for the scoped repositories.
- 3. The reviewer compares each repository permission and role assignment against the approved access list and flags any deviation, stale account, or missing owner.
- 4. The reviewer verifies that protected branches have the required branch protection rules, required reviews, and escalation criteria documented for exceptions.
- 5. The reviewer checks that CODEOWNERS covers critical paths, records any gaps or outdated ownership, and applies the approved permission change only after authorization.
- 6. The reviewer documents the outcome, escalates unresolved exceptions or non-conformances, and closes the review with evidence attached.
Best practices
- Name the exact repository, branch, and path scope at the start so the reviewer does not drift into adjacent projects.
- Verify the approved access source before making any change, and do not rely on memory, chat history, or informal requests.
- Treat branch protection and CODEOWNERS as separate controls, because one can be correct while the other is missing or outdated.
- Record the actor, approval reference, and verification result for every permission change so the audit trail is complete.
- Escalate any exception that affects production, release, or regulated code instead of trying to resolve it informally.
- Remove stale collaborators and unused service accounts during the review rather than waiting for a separate cleanup cycle.
- Photograph or export the current control evidence at the time of review so later changes do not erase the record.
What this template typically catches
Issues teams running this template most often surface in practice:
Common use cases
Frequently asked questions
What does this SOP cover?
This SOP covers the review of GitHub repository permissions, branch protection rules, CODEOWNERS coverage, and access change approvals. It is meant for recurring access audits and for handling individual permission requests. The template helps you record evidence, compare it to approved access, and escalate deviations. It does not replace your internal identity or security policy.
How often should the review be run?
Most teams run it on a scheduled cadence such as monthly, quarterly, or after major team changes. The right frequency depends on how sensitive the repositories are and how often contributors change. High-risk repositories usually need more frequent review than low-risk internal projects. The template supports either recurring audits or event-driven reviews.
Who should own this process?
A repository owner, engineering manager, platform admin, or security role typically owns the review. The reviewer should be a competent person who can verify permissions, branch rules, and CODEOWNERS coverage without guessing. For approval changes, the template can assign a separate approver to keep duties clear. That separation is useful when access changes affect production or regulated code.
Does this help with compliance requirements?
Yes, it supports documented information practices that align with ISO 9001-style control of records and approvals. It also helps demonstrate access governance expected in security and operational control programs. If your repositories support regulated work, the review record can be used as evidence of review, verification, and escalation. You should still map it to your own policy and legal requirements.
What are the most common mistakes this SOP prevents?
Common failures include stale collaborator access, missing branch protection on protected branches, and CODEOWNERS files that do not cover critical paths. Teams also miss approval evidence, apply changes before verifying the request, or forget to escalate exceptions. Another frequent issue is reviewing the repository list without confirming the exact branch or path scope. This template forces each of those checks into a documented step.
Can I customize it for different repository types?
Yes, you can tailor the scope for public, private, internal, or production repositories. You can also add fields for GitHub Enterprise, team-based access, service accounts, or environment-specific branch rules. If some repositories require stricter controls, add extra verification and escalation steps for those paths. The structure is flexible enough to support both simple and high-risk repositories.
How does this compare with ad-hoc permission checks?
Ad-hoc checks are easy to forget and hard to audit later. This SOP creates a repeatable sequence for collecting evidence, comparing approved access, and recording the outcome. It also makes exceptions visible instead of burying them in chat or email. That reduces the chance of accidental over-permissioning and inconsistent enforcement.
Can this be integrated with other workflows?
Yes, it can be paired with ticketing, approval workflows, identity management, and change management processes. Many teams link the review to access request tickets, offboarding tasks, or quarterly control reviews. You can also connect it to branch protection or CODEOWNERS standards used by engineering governance. The template is designed to sit inside a broader access-control workflow.
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