GitLabApplication

CVE-2025-11989

HIGH · 8.1 CVSS v3.1 Published 2025-10-27
Fix available
A fix is available. Upgrade to 18.3.5 / 18.4.3 or later.
See remediation →
87/100
Remediation priority · High
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
GitLab has remediated an issue in GitLab EE affecting all versions from 17.6.0 before 18.3.5, 18.4 before 18.4.3, and 18.5 before 18.5.1 that could have allowed an authenticated attacker to execute unauthorized quick actions by including malicious commands in specific descriptions.

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 EE versions 17.6.0 through 18.5.x before stated patches contained an authorization bypass where authenticated attackers could execute unauthorized quick actions by embedding malicious commands in specific description fields. Quick actions are parsed text shortcuts (like /assign, /close) that get executed server-side, and this vulnerability allowed bypassing authorization checks on these commands.

MitigationUpgrade GitLab EE to version 18.3.5, 18.4.3, 18.5.1 or later. For GitLab.com users, the fix is already deployed. Self-managed instances require applying the patch.

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:>= 17.6.0, < 18.3.5>= 18.4.0, < 18.4.3= 18.5.0

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
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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. Identify GitLab EE version
    Run `sudo gitlab-rake gitlab:version` or check the Admin Area > Settings > Metrics and profiling > Version on self-managed instances. For GitLab.com, version is visible in the footer.
    Affected if Version falls within 17.6.0 through 18.3.4, or 18.4.0 through 18.4.2, or equals 18.5.0
  2. Confirm GitLab edition is EE
    The vulnerability affects GitLab Enterprise Edition (EE) only. Check the edition using `sudo gitlab-rake gitlab:env:info` or the Admin Area dashboard.
    Affected if Edition is Enterprise Edition (EE) and version matches the vulnerable ranges above
  3. Verify quick actions feature is active
    Quick actions are enabled by default in GitLab. No explicit configuration check is required unless explicitly disabled via `gitlab_rails['gitlab_quick_actions_enabled'] = false` in gitlab.rb.
    Affected if Quick actions are enabled (default) and version is vulnerable

A self-managed GitLab EE instance is affected if it runs version 17.6.0-18.3.4, 18.4.0-18.4.2, or 18.5.0 with quick actions enabled.

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 18.3.5 / 18.4.3 or later
Fixed in 18.3.518.4.3
Interim mitigation

Upgrade GitLab EE to version 18.3.5, 18.4.3, 18.5.1 or later. For GitLab.com users, the fix is already deployed. Self-managed instances require applying the patch.

Recommended fix High confidence

18.3.5, 18.4.3, or 18.5.1 (depending on your current version branch)

  1. Identify your current GitLab version by running `gitlab-rake gitlab:env:info` or checking the GitLab admin area
  2. Determine which upgrade path applies based on your current version: if running 17.6.0 through 18.3.4, upgrade to 18.3.5 or later; if running 18.4.0 through 18.4.2, upgrade to 18.4.3 or later; if running 18.5.0, upgrade to 18.5.1 or later
  3. Follow the official GitLab upgrade documentation for your installation method (omnibus, source, or helm chart)
  4. Back up your GitLab database and repositories before upgrading
  5. Run the upgrade following GitLab's standard upgrade procedure
  6. After upgrade, verify GitLab is functioning correctly and test that quick actions work as expected
Caveat Check GitLab release notes for your target version as upgrades may include breaking changes; major version jumps may require additional migration steps

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
  • Testing4.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,080
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,328.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2025-11989 — 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-2025-11989 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