CVE-2026-59299
LowCVSS 3.1Exploitation Probability (EPSS)
Low risk5th percentile - higher than 5% of all known CVEs
Summary
In Spring Cloud Function, composition lookup can potentially poison the base function, which may lead to unauthorized code execution or manipulation of function behavior.
Risk Assessment
Poisoning the base function could allow an attacker to execute malicious code or alter application logic, potentially leading to security breaches.
Recommendation
Update Spring Cloud Function to a patched version or restrict access to the composition mechanism.
Other vulnerabilities in Spring Cloud Function
See all- CVE-2022-22963CriticalActively exploited
In Spring Cloud Function versions 3.1.6, 3.2.2 and older unsupported versions, when using routing functionality it is possible for a user to provide a specially crafted SpEL as a routing-expression that may result in remote code execution and access to local resources.
- CVE-2026-59301Low
In Spring Cloud Function Azure, there is a potential for logging sensitive data, which may lead to leakage of confidential information into logs.
- CVE-2026-59300Low
In Spring Cloud Function AWS, there is a potential for logging sensitive data, which may lead to leakage of confidential information into logs.
- CVE-2026-59298Low
In Spring Cloud Function, there is a potential for improper filtering of HTTP headers, which may lead to header injection or other header-related attacks.
- CVE-2026-59297Low
The implementation of isSecure() in ServerlessHttpServletRequest does not verify the actual scheme, which may lead to incorrect determination of connection security.
- CVE-2026-59291Low
Potential arbitrary file read and SSRF vulnerability in Spring Cloud Function. Affects versions 5.0.0-5.0.3, 4.3.0-4.3.4, and 4.2.0-4.2.7.
- CVE-2026-40990Medium
Vulnerability in Spring Cloud Function allows an OOM (Out of Memory) error by attempting to add an infinite number of functions to the Function Registry. It affects multiple versions of the library.
- CVE-2026-40989Medium
Vulnerability in Spring Cloud Function allows an OOM (Out of Memory) error through infinite recursion in the routing layer during request handling. It affects multiple versions of the library.
Original NVD description (English source)
Composition lookup can potentially poison base function in Spring Cloud Function. Spring Cloud Function 5.0.0 - 5.0.3 Spring Cloud Function 4.3.0 - 4.3.4 Spring Cloud Function 4.2.0 - 4.2.7 Spring Cloud Function 3.2.16 and earlier
Vulnerability data from NVD (NIST) · CISA KEV · EPSS