CVE-2026-78599
Received Received - Intake

Path Traversal in Kibana Fleet Feature

Publication date: 2026-09-02

Last updated on: 2026-09-02

Assigner: Elastic

Description
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22) in the Kibana Fleet feature can lead to the unauthorized deletion of internal resources via Path Traversal (CAPEC-126). A low-privileged user holding Fleet write access could cause a subsequent administrative delete action to act on unintended internal resources. Exploitation requires an administrator to interact with the affected Fleet interface.

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Meta Information

Published
2026-09-02
Last Modified
2026-09-02
Generated
2026-09-02
AI Q&A
2026-09-02
EPSS Evaluated
N/A
NVD
CVE-2026-78599
EUVD
EUVD-2026-70060

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
elastic kibana *
elastic kibana From 8.0.0 (inc) to 8.19.17 (inc)
elastic kibana From 9.0.0 (inc) to 9.4.2 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

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Executive Summary

CVE-2026-78599 is a Path Traversal vulnerability (CWE-22) in Kibana's Fleet feature. It allows a low-privileged user with Fleet write access to manipulate administrative delete actions, causing unintended deletion of internal resources. Exploitation requires an administrator to interact with the affected Fleet interface.

Detection Guidance

To detect this vulnerability, check if your Kibana instance is running a vulnerable version (8.0.0 through 8.19.17 or 9.0.0 through 9.4.2). Use commands like 'curl -X GET http://localhost:5601/api/status' to verify the version. Inspect Fleet write access logs for suspicious administrative delete actions.

Impact Analysis

If exploited, this vulnerability could lead to unauthorized deletion of internal resources in Kibana. This may disrupt operations, cause data loss, or compromise system integrity. Attackers could target sensitive configurations or logs, impacting overall system stability.

Compliance Impact

This vulnerability could lead to unauthorized data deletion or manipulation, potentially violating compliance requirements for GDPR (data integrity) and HIPAA (data availability and integrity). Unauthorized changes may result in non-compliance penalties or loss of certification.

Mitigation Strategies

Upgrade Kibana to a patched version (8.19.18 or 9.4.3) immediately. If upgrading is not possible, restrict Fleet write access to trusted users only and monitor administrative actions closely.

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