Credential disclosure in Elastic Kibana Observability onboarding
Key facts
- Attack vector
- Network
- Privileges required
- Low
- 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 · CNA. Fix status from CNA. Impact type from CWE-201.
Summary
Elastic Kibana versions from 8.10.0 through 8.19.23, from 9.0.0 through 9.4.8, and from 9.5.0 through 9.5.5 are affected. Kibana Observability onboarding inserts sensitive information into sent data (CWE-201), exposing the credentials Kibana uses to reach Elasticsearch when they are embedded in host URLs. An authenticated user with privileges to onboard Observability data can obtain these credentials and access Elasticsearch with the Kibana service account privileges.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Description from the CNA
Insertion of Sensitive Information Into Sent Data (CWE-201) in Kibana Observability onboarding can lead to disclosure of the credentials that Kibana uses to connect to Elasticsearch. When these credentials are embedded in the Elasticsearch host URLs in the Kibana configuration, an authenticated user with the privileges to onboard Observability data can obtain them. The user can then access Elasticsearch directly with the privileges of the Kibana service account, which are outside the privileges granted to that user.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for Kibana.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Timeline
- 2026-11-03 Threatist record created from CVE-2026-115293
- 2026-11-03 CISA SSVC decision points changed
- 2026-11-03 Priority changed: MEDIUM → LOW
- 2026-11-03 Alias added: GHSA-gcm8-h8qh-v555
References
More Elastic vulnerabilities
- TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
- TI-2015-01295 The Groovy scripting engine in Elasticsearch before 1.3.8 and 1.4.x before 1.4.3 allows… KEVCVSS 3.1CRITICAL 9.8
- TI-2014-02491 The default configuration in Elasticsearch before 1.2 enables dynamic scripting, which… KEVCVSS 3.1HIGH 8.1
- TI-2018-12328 Kibana versions before 6.4.3 and 5.6.13 contain an arbitrary file inclusion flaw in the… CVSS 3.0CRITICAL 9.8
- TI-2023-15037 Elasticsearch StackOverflow vulnerability CVSS 3.1HIGH 7.5
- TI-2021-05135 Information disclosure in Elasticsearch CVSS 3.1MEDIUM 6.5
Sources
- CVE-2026-115293 · CVE Program
- CVE-2026-115293 · NVD
- FIRST EPSS
- GHSA-gcm8-h8qh-v555 · 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