GitLabApplication
CVE-2022-3818
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 · uneditedAn uncontrolled resource consumption issue when parsing URLs in GitLab CE/EE affecting all versions prior to 15.3.5, 15.4 prior to 15.4.4, and 15.5 prior to 15.5.2 allows an attacker to cause performance issues and potentially a denial of service on the GitLab instance.
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 confidenceGitLab CE/EE contains an uncontrolled resource consumption vulnerability in its URL parsing functionality. Attackers can craft malicious URLs that cause excessive resource consumption during parsing, leading to performance degradation and potential denial of service on the GitLab instance.
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
< 15.3.5>= 15.4.0, < 15.4.4>= 15.5.0, < 15.5.2CVSS 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
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
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 checksWork through these to decide whether this CVE applies to you.
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Determine installed GitLab versionRun 'gitlab-rake gitlab:env:info' or check /opt/gitlab/version on the GitLab server. Alternatively, visit the GitLab admin area Help page which displays the version number.Affected if The displayed version falls into any of these ranges: < 15.3.5, >= 15.4.0 but < 15.4.4, or >= 15.5.0 but < 15.5.2
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Confirm GitLab web service is activeCheck that the GitLab web interface (Puma or Unicorn process) is running. Run 'gitlab-ctl status' or check that port 80/443 is listening.Affected if GitLab is actively serving web requests, as URL parsing occurs during normal HTTP request processing
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Verify instance is network accessibleConfirm the GitLab instance has network listeners. Check open ports with 'netstat -tlnp | grep -E "(80|443|8080)"' or review firewall rules.Affected if The GitLab instance accepts external or internal HTTP connections, making it reachable for malicious URL requests
If the installed GitLab version is below 15.3.5, between 15.4.0-15.4.3, or between 15.5.0-15.5.1, and the web service is running and network-accessible, the instance is vulnerable to resource exhaustion from crafted URLs.
Generated from the published advisory. Verify against your own configuration.
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 · scoped15.3.515.4.415.5.2
Upgrade GitLab to version 15.3.5, 15.4.4, or 15.5.2 or later to resolve the URL parsing resource consumption issue.
15.5.2 (or latest stable 15.x release)
- Backup your GitLab instance data and configuration before upgrading
- Plan maintenance window as upgrade will require brief downtime
- Upgrade GitLab to version 15.5.2 or later (recommended: latest stable 15.x release)
- Verify the upgrade completed successfully by checking GitLab version in Admin Area > Metrics and profiling > Version
- Test critical GitLab functions (repository access, merge requests, CI/CD pipelines) after upgrade
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
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-3818 — 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 sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2022-3818 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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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.
- 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