SB20260428209 - Path traversal in Spring Cloud Config
Published: April 28, 2026
Security Bulletin ID
SB20260428209
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Path traversal (CVE-ID: CVE-2026-22739)
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.
Remediation
Install update from vendor's website.