GitLabApplication

CVE-2023-3444

MEDIUM · 6.5 CVSS v3.1 Published 2023-07-13
Fix available
A fix is available. Upgrade to 15.11.10 / 16.0.6 or later.
See remediation →
71/100
Remediation priority · Elevated
Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
An issue has been discovered in GitLab CE/EE affecting all versions starting from 15.3 before 15.11.10, all versions starting from 16.0 before 16.0.6, all versions starting from 16.1 before 16.1.1, which allows an attacker to merge arbitrary code into protected branches.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

An authorization bypass vulnerability in GitLab CE/EE allows authenticated attackers to merge arbitrary code into protected branches that should restrict such changes, effectively bypassing branch protection controls.

MitigationUpgrade GitLab to version 15.11.10, 16.0.6, 16.1.1 or later to patch this authorization bypass in protected branch merge workflows.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
GitLabApplication
Affected:>= 15.3.0, < 15.11.10>= 16.0.0, < 16.0.6>= 16.1.0, < 16.1.1

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Determine your GitLab version
    Run 'sudo gitlab-rake gitlab:env:info' or check the GitLab admin area under /help for the exact version number
    Affected if The installed version falls within >= 15.3.0, < 15.11.10 OR >= 16.0.0, < 16.0.6 OR >= 16.1.0, < 16.1.1
  2. Verify protected branches exist
    Navigate to a project's Settings > Repository > Protected branches, or use the API endpoint GET /projects/:id/protected_branches
    Affected if Any protected branches are defined in the GitLab instance
  3. Identify merge requests targeting protected branches
    Review merge requests where the target branch is a protected branch. Check for any merge requests with 'Allow commits from members who can merge' or similar settings enabled, or examine merge request pipelines and approval status via the web UI or API
    Affected if There are active or recently merged merge requests targeting protected branches in your projects

You are affected if your GitLab version is within the affected ranges AND you have protected branches with merge requests targeting them.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 15.11.10 / 16.0.6 / 16.1.1 or later
Fixed in 15.11.1016.0.616.1.1
Interim mitigation

Upgrade GitLab to version 15.11.10, 16.0.6, 16.1.1 or later to patch this authorization bypass in protected branch merge workflows.

Recommended fix High confidence

15.11.10, 16.0.6, or 16.1.1 depending on your current major.minor branch

  1. Identify your current GitLab version using gitlab-rake gitlab:env:info
  2. Back up your GitLab database and repository data before upgrading
  3. Stop GitLab services (gitlab-ctl stop)
  4. Update GitLab to version 15.11.10 (if on 15.x), 16.0.6 (if on 16.0.x), or 16.1.1 (if on 16.1.x) using your package manager or omnibus installation method
  5. Run gitlab-ctl reconfigure after the package upgrade
  6. Start GitLab services (gitlab-ctl start)
  7. Verify the upgrade was successful and test protected branch merge functionality
Caveat Standard GitLab upgrade considerations apply - review release notes for deprecations and ensure compatibility with your runners and integrations

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in GitLab Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,560.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2023-3444 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-3444 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data