CVE-2021-42763 json
Couchbase Server before 6.6.3 and 7.x before 7.0.2 stores Sensitive Information in Cleartext.
published 2021-11-02 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-29721
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 49%
- public exploits
- 0
- none known
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.
Patch / fix
- couchbase couchbase_server 4.6.0, 6.1.0
Exploit prediction
0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-312 Cleartext Storage of Sensitive Information
References
-
docs.couchbase.com
/server/current/release-notes/relnotes.html
release-notes, vendor-advisory
-
couchbase.com
/alerts
vendor-advisory
Sources
- CVE List CVE-2021-42763
- NVD CVE-2021-42763
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