Path traversal in Spring Cloud Config - CVE-2026-22739
Published: April 28, 2026
Vulnerability identifier: #VU128384
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-22739
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Pivotal
Affected software:
Spring Cloud Config
Spring Cloud Config
Detailed vulnerability description
The vulnerability allows a remote attacker to access files outside of configured search directories.
The vulnerability exists due to improper limitation of a pathname to a restricted directory in the profile parameter handling in the Spring Cloud Config Server native file system backend when substituting the profile parameter from a request. A remote attacker can send a specially crafted request to access files outside of configured search directories.
Only configurations using the native file system backend are affected by this issue.
How to mitigate CVE-2026-22739
Install security update from vendor's website.