Couchbase Server exposed the '/diag/eval' endpoint which by default is available on…
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-94.
Summary
Couchbase Server exposed the '/diag/eval' endpoint which by default is available on TCP/8091 and/or TCP/18091. Authenticated users that have 'Full Admin' role assigned could send arbitrary Erlang code to the 'diag/eval' endpoint of the API and the code would subsequently be executed in the underlying operating system with privileges of the user which was used to start Couchbase. Affects Version: 4.0.0, 4.1.2, 4.5.1, 5.0.0, 4.6.5, 5.0.1, 5.1.1, 5.5.0, 5.5.1. Fix Version: 6.0.0, 5.5.2
Why it matters now
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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-15728
- 2026-10-03 Alias added: GHSA-jmwc-v96p-wc34
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-2018-15728 · CVE Program
- CVE-2018-15728 · NVD
- FIRST EPSS
- GHSA-jmwc-v96p-wc34 · GitHub Advisory Database · CC BY 4.0
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