SB2023071877 - Security restrictions bypass in Spring Security
Published: July 18, 2023 Updated: April 21, 2026
Security Bulletin ID
SB2023071877
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Security features bypass (CVE-ID: CVE-2023-34034)
The vulnerability allows a remote attacker to bypass security restrictions.
The vulnerability exists due to the usage of "**" as a pattern in Spring Security configuration for WebFlux creates a mismatch in pattern matching between Spring Security and Spring WebFlux. A remote unauthenticated attacker can trigger the vulnerability to bypass security restrictions.
Remediation
Install update from vendor's website.