Elastic Maps Server Path Traversal can expose file contents
CVE-2026-78602 Published on September 2, 2026
Improper Limitation of a Pathname to a Restricted Directory in Elastic Maps Server Leading to Unauthorized File Disclosure
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22) in Elastic Maps Server can lead to information disclosure via Path Traversal (CAPEC-126). An unauthenticated attacker able to reach the service over the network could cause it to return the contents of files outside its intended content directory that are readable by the server process.
Vulnerability Analysis
CVE-2026-78602 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
What is a Directory traversal Vulnerability?
The software 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 software 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.
CVE-2026-78602 has been classified to as a Directory traversal vulnerability or weakness.
Affected Versions
Elastic Maps Server:- Version 8.19.11, <= 8.19.18 is affected.
- Version 9.3.0, <= 9.4.3 is affected.
- Version 9.5.0 is affected.