Unintended Proxy or Intermediary ('Confused Deputy') in Kibana Leading to Unauthorized Information Exposure
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-863.
Summary
Unintended Proxy or Intermediary ('Confused Deputy') (CWE-441) in Kibana can lead to unauthorized information exposure via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). Under certain conditions, a lower-privileged user can cause data from sources they are not authorized to access to be processed using another user's privileges.
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
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-49092
- 2026-10-03 Alias added: GHSA-2529-45pr-jcrg
References
More Elastic Kibana vulnerabilities
- TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
- 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-2025-18692 Kibana arbitrary code execution via prototype pollution CVSS 3.1CRITICAL 9.8
- TI-2020-05660 Code injection in Elastic Kibana CVSS 3.1HIGH 8.8
- TI-2024-24803 Deserialization of untrusted data in Elastic Kibana CVSS 3.1CRITICAL 9.9
- TI-2024-24800 Kibana arbitrary code execution via YAML deserialization CVSS 3.1CRITICAL 9.1
Sources
- CVE-2026-49092 · CVE Program
- CVE-2026-49092 · NVD
- FIRST EPSS
- GHSA-2529-45pr-jcrg · GitHub Advisory Database · CC BY 4.0
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