Path traversal in FHIR - CVE-2023-28465
Published: March 10, 2023 / Updated: July 14, 2026
Vulnerability identifier: #VU137472
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-28465
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to write files outside the intended cache directory.
The vulnerability exists due to path traversal in TerminologyCacheManager when processing a crafted Zip archive. A remote attacker can supply archive entries with sibling-directory paths to write files outside the intended cache directory.
The issue is limited to escaping into sibling directories of the cache directory.
Affected software
FHIR
How to mitigate CVE-2023-28465
Install security update from vendor's website.
FHIR - update to 5.6.106