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Couchbase ServerApplication · Couchbase

CVE-2022-32557

HIGH · 7.5 CVSS v3.1 Published 2022-06-14
Fix available
A fix is available. Upgrade to 7.0.4 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
An issue was discovered in Couchbase Server before 7.0.4. The Index Service does not enforce authentication for TCP/TLS servers.

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

The Index Service in Couchbase Server versions before 7.0.4 has a critical authentication bypass vulnerability where TCP/TLS servers fail to enforce authentication, allowing unauthenticated network attackers to potentially access sensitive index operations and data.

MitigationUpgrade Couchbase Server to version 7.0.4 or later to enforce proper authentication on Index Service endpoints. If immediate upgrade is not possible, consider network segmentation to limit exposure of the Index Service port.

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
Couchbase ServerApplication
Affected:>= 4.0.0, < 7.0.4

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
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/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. Identify Couchbase Server installation and version
    Run 'couchbase-cli --version' or check the installed package version via package manager (dpkg -l couchbase-server, rpm -qi couchbase-server)
    Affected if Version is 4.0.0 through 7.0.3 (any version less than 7.0.4)
  2. Verify Index Service is enabled
    Log into Couchbase Web Console and navigate to Services tab, or run 'couchbase-cli service-list -c localhost:8091' to list active services
    Affected if Index Service is listed as an active service on the node
  3. Confirm Index Service port accessibility
    Check if port 9100 (default Index Service port) is listening and accessible by running 'netstat -tlnp | grep 9100' or 'ss -tlnp | grep 9100' on the server; verify network exposure with 'nmap -p 9100 <server-ip>' from an external host
    Affected if Port 9100 is open and reachable from untrusted networks
  4. Check for unauthenticated Index Service response
    Send a raw HTTP request to the Index Service port: 'curl -v http://<server-ip>:9100/' or 'echo -e "GET / HTTP/1.0\r\n\r\n" | nc <server-ip> 9100'
    Affected if The service responds without requiring authentication credentials (HTTP 200 or valid JSON response without 401 error)

A user is affected if Couchbase Server version is below 7.0.4, the Index Service is enabled, and the Index Service port (9100) accepts connections without authentication.

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 7.0.4 or later
Fixed in 7.0.4
Interim mitigation

Upgrade Couchbase Server to version 7.0.4 or later to enforce proper authentication on Index Service endpoints. If immediate upgrade is not possible, consider network segmentation to limit exposure of the Index Service port.

Recommended fix High confidence

7.0.4

  1. 1. Review the Couchbase Server upgrade documentation at docs.couchbase.com for your current version
  2. 2. Ensure you have a complete backup of your cluster data before upgrading
  3. 3. Plan for a maintenance window as the upgrade will require service downtime
  4. 4. Upgrade Couchbase Server from your current version to version 7.0.4 or later
  5. 5. After upgrade, verify that the Index Service is properly enforcing authentication
  6. 6. Test critical index operations to ensure functionality is intact
Caveat Review Couchbase 7.0.4 release notes for any breaking changes between your current version and 7.0.4

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

Fix this in Couchbase Server Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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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-2022-32557 in production — separate from our analysis above.

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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