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LOW · 3.1

CVE-2026-59303

Dynamic destination cache size is not properly bound in Spring Cloud Stream. Spring Cloud Stream 5.0.0 - 5.0.2 Spring Cloud Stream 4.3.0 - 4.3.3 Spring Cloud Stream 4.2.0 - 4.2.6

Vulnerability Description

Dynamic destination cache size is not properly bound in Spring Cloud Stream. Spring Cloud Stream 5.0.0 - 5.0.2 Spring Cloud Stream 4.3.0 - 4.3.3 Spring Cloud Stream 4.2.0 - 4.2.6

CVSS Score

3.1

LOW

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE

Affected Products

VendorProductVersions
VmwareSpring Cloud Stream>= 4.2.0, < 4.2.7

Related Weaknesses (CWE)

CWE-770

References

FAQ

What is CVE-2026-59303?

CVE-2026-59303 is a vulnerability with a CVSS score of 3.1 (LOW). Dynamic destination cache size is not properly bound in Spring Cloud Stream. Spring Cloud Stream 5.0.0 - 5.0.2 Spring Cloud Stream 4.3.0 - 4.3.3 Spring Cloud Stream 4.2.0 - 4.2.6

How severe is CVE-2026-59303?

CVE-2026-59303 has been rated LOW with a CVSS base score of 3.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-59303?

Check the references section above for vendor advisories and patch information. Affected products include: Vmware Spring Cloud Stream.