Input validation error in Spring Cloud Config - CVE-2026-47837
Published: August 28, 2026
Vulnerability identifier: #VU146232
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-47837
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to improper input validation in the /monitor endpoint when handling webhook requests. A remote privileged user can send a crafted webhook request to cause a denial of service.
Affected software
Spring Cloud Config
How to mitigate CVE-2026-47837
Install security update from vendor's website.
Spring Cloud Config - addressed in versions 3.1.15, 4.2.9, 4.3.5, 5.0.5