CVE-2026-72677: CWE-23 Relative Path Traversal in Elastic Kibana
Relative Path Traversal (CWE-23) in Kibana can lead to the unauthorized deletion of Kibana resources via Relative Path Traversal (CAPEC-139). Kibana Fleet accepted a user-supplied identifier for a Fleet Server host configuration without rejecting relative traversal sequences. The identifier is stored as provided and is later incorporated into the request that Kibana issues when that configuration is removed.
AI Analysis
Technical Summary
This vulnerability (CWE-23) in Kibana's Fleet Server host configuration arises because user-supplied identifiers are accepted without validation against relative path traversal sequences. These identifiers are stored as-is and incorporated into removal requests, which can be manipulated to delete unauthorized Kibana resources. The CVSS 3.1 score is 7.3, indicating a high severity with network attack vector, low attack complexity, requiring privileges and user interaction, and impacting integrity and availability.
Potential Impact
An attacker with some privileges and the ability to interact with the user interface can exploit this flaw to delete Kibana resources that they should not be authorized to remove. This impacts the integrity and availability of Kibana configurations and resources, potentially disrupting service or causing data loss.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been documented at this time. Users should monitor Elastic's advisories for updates and consider restricting access to Fleet Server host configuration management to trusted users only until a fix is available.
CVE-2026-72677: CWE-23 Relative Path Traversal in Elastic Kibana
Description
Relative Path Traversal (CWE-23) in Kibana can lead to the unauthorized deletion of Kibana resources via Relative Path Traversal (CAPEC-139). Kibana Fleet accepted a user-supplied identifier for a Fleet Server host configuration without rejecting relative traversal sequences. The identifier is stored as provided and is later incorporated into the request that Kibana issues when that configuration is removed.
CVSS v3.1
Score 7.3high
Affected software
pkg:github/elastic/kibanaRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-23) in Kibana's Fleet Server host configuration arises because user-supplied identifiers are accepted without validation against relative path traversal sequences. These identifiers are stored as-is and incorporated into removal requests, which can be manipulated to delete unauthorized Kibana resources. The CVSS 3.1 score is 7.3, indicating a high severity with network attack vector, low attack complexity, requiring privileges and user interaction, and impacting integrity and availability.
Potential Impact
An attacker with some privileges and the ability to interact with the user interface can exploit this flaw to delete Kibana resources that they should not be authorized to remove. This impacts the integrity and availability of Kibana configurations and resources, potentially disrupting service or causing data loss.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been documented at this time. Users should monitor Elastic's advisories for updates and consider restricting access to Fleet Server host configuration management to trusted users only until a fix is available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- elastic
- Date Reserved
- 2026-08-10T11:17:49.704Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7e1a85bf8831d539b18410
Added to database: 08/13/2026, 19:27:01 UTC
Last enriched: 08/13/2026, 19:41:08 UTC
Last updated: 08/13/2026, 21:37:52 UTC
Views: 4
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