SB20260828168 - Improper access control in Spring Cloud Gateway
Published: August 28, 2026
Security Bulletin ID
SB20260828168
CSH Severity
Low
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) Improper access control (CVE-ID: CVE-2026-47879)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: 7.4 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote user to access native files and perform server-side request forgery.
The vulnerability exists due to improper access control in JsonToGrpcGatewayFilterFactory when processing proto descriptor resource locations. A remote privileged user can specify an arbitrary Spring Resource location to access native files and perform server-side request forgery.
Remediation
Install update from vendor's website.