GitLabApplication

CVE-2025-12664

HIGH · 7.5 CVSS v3.1 Published 2026-04-08
Fix available
A fix is available. Upgrade to 18.8.9 / 18.9.5 or later.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges 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
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.0 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an unauthenticated user to cause denial of service by sending repeated GraphQL queries.

In the news

Third-party coverage
Trending covered by 1 outlet this week · latest 4mo ago

Surfaced from public web coverage — external links open in a new tab.

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

GitLab CE/EE versions 13.0 through 18.8.8, 18.9.0-18.9.4, and 18.10.0-18.10.2 contain a denial of service vulnerability where unauthenticated users can send repeated GraphQL queries to exhaust server resources and cause service unavailability.

MitigationUpgrade GitLab to version 18.8.9, 18.9.5, or 18.10.3 or later to patch the vulnerability.

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:>= 13.0.0, < 18.8.9>= 18.9.0, < 18.9.5>= 18.10.0, < 18.10.3

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
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

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 GitLab version
    Access the GitLab admin dashboard or run `gitlab-rake gitlab:env:info` to retrieve the installed GitLab version number
    Affected if The displayed version falls within these ranges: >= 13.0.0 and < 18.8.9, OR >= 18.9.0 and < 18.9.5, OR >= 18.10.0 and < 18.10.3
  2. Confirm GraphQL endpoint is accessible
    Attempt to access the GraphQL endpoint at your GitLab instance URL with a path such as /api/graphql or /graphql (a successful response indicates the endpoint is exposed)
    Affected if The GraphQL endpoint returns a response, indicating it is enabled and reachable
  3. Check if rate limiting is configured for GraphQL
    Review the GitLab configuration files (gitlab.rb or gitlab.yml) for any rate_limit settings specifically applied to the GraphQL endpoint; also check the Admin Area > Settings > Network > Rate limiting for GraphQL-related rules
    Affected if No rate limiting rules are defined or enabled specifically for the GraphQL endpoint, leaving it unprotected against repeated requests

A user is affected if their GitLab version is in the vulnerable range AND the GraphQL endpoint is accessible AND no rate limiting is configured for that endpoint.

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 18.8.9 / 18.9.5 / 18.10.3 or later
Fixed in 18.8.918.9.518.10.3
Interim mitigation

Upgrade GitLab to version 18.8.9, 18.9.5, or 18.10.3 or later to patch the vulnerability.

Recommended fix High confidence

18.8.9, 18.9.5, or 18.10.3 (or any later version)

  1. Back up your GitLab instance data and configuration before proceeding with any upgrade
  2. Review GitLab's official upgrade documentation for your installation method (omnibus, source, etc.)
  3. Plan your upgrade path based on your current version: if on 13.x through 18.8.x, upgrade to 18.8.9; if on 18.9.x, upgrade to 18.9.5; if on 18.10.x, upgrade to 18.10.3
  4. Execute the upgrade following GitLab's standard upgrade procedure for your deployment method
  5. After upgrade, verify GitLab services are running correctly and test GraphQL endpoint functionality
  6. Confirm the version number matches the expected fixed release
Caveat Major version upgrades may require database migrations; review GitLab's release notes for between-version breaking changes

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

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dbcve dependency scanner

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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-2025-12664 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