Couchbase Server before 6.6.3 and 7.x before 7.0.2 stores Sensitive Information in…
Priority LOW 34CWE-312Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-312.
Summary
Couchbase Server before 6.6.3 and 7.x before 7.0.2 stores Sensitive Information in Cleartext. The issue occurs when the cluster manager forwards a HTTP request from the pluggable UI (query workbench etc) to the specific service. In the backtrace, the Basic Auth Header included in the HTTP request, has the "@" user credentials of the node processing the UI request.
Why it matters now
EPSS 0.00608 49th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:couchbase:couchbase_server:*:*:*:*:*:*:*:* | before 4.6.0; 5.0.0 to before 6.1.0; 6.5.0 – 6.6.2 | Vulnerable | Couchbase |
| cpe:2.3:a:couchbase:couchbase_server:7.0.0:-:*:*:*:*:*:* | 7.0.0 | Vulnerable | Couchbase |
| cpe:2.3:a:couchbase:couchbase_server:7.0.1:*:*:*:*:*:*:* | 7.0.1 | Vulnerable | Couchbase |
- cpe:2.3:a:couchbase:couchbase_server:*:*:*:*:*:*:*:* Versions before 4.6.0; 5.0.0 to before 6.1.0; 6.5.0 – 6.6.2 Vulnerable ·Couchbase
- cpe:2.3:a:couchbase:couchbase_server:7.0.0:-:*:*:*:*:*:* Versions 7.0.0 Vulnerable ·Couchbase
- cpe:2.3:a:couchbase:couchbase_server:7.0.1:*:*:*:*:*:*:* Versions 7.0.1 Vulnerable ·Couchbase
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-42763
- 2026-10-03 Alias added: GHSA-fhmq-3v4x-2v22
References
More Couchbase Server vulnerabilities
- TI-2024-00478 Out-of-bounds read in Google Chrome KEVCVSS 3.1HIGH 8.8
- TI-2023-02885 Type confusion in Google Chrome KEVCVSS 3.1HIGH 8.8
- TI-2023-01910 Type confusion in Google Chrome KEVCVSS 3.1HIGH 8.8
- TI-2023-27712 Python-cryptography: bleichenbacher timing oracle attack against rsa decryption - incomplete fix for cve-2020-25659 CVSS 3.1HIGH 7.5
- TI-2020-15177 Exposed Erlang Cookie could lead to Remote Command Execution (RCE) attack. CVSS 3.1CRITICAL 9.8
- TI-2023-27298 An issue was discovered in Couchbase Server before 7.2.4. CVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-42763 · CVE Program
- CVE-2021-42763 · NVD
- FIRST EPSS
- GHSA-fhmq-3v4x-2v22 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences