Input validation error in Spring Cloud Function - CVE-2026-59291
Published: August 31, 2026
Vulnerability identifier: #VU146383
CSH Severity: Low
CVSS v4: 1.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-59291
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to perform server-side request forgery and modify data.
The vulnerability exists due to improper input validation in Spring Cloud Function when processing crafted input. A remote privileged user can send specially crafted input to perform server-side request forgery and modify data.
User interaction is required.
Affected software
Spring Cloud Function
How to mitigate CVE-2026-59291
Install security update from vendor's website.
Spring Cloud Function - addressed in versions 4.2.8, 4.3.5, 5.0.4