Buffer overflow in Spring Cloud Stream - CVE-2026-59303
Published: August 31, 2026
Vulnerability identifier: #VU146428
CSH Severity: Low
CVSS v4: 1.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-59303
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information and modify data.
The vulnerability exists due to improper bounds restriction in dynamic destination cache size handling when processing dynamic destinations. A remote privileged user can interact with crafted dynamic destinations to disclose sensitive information and modify data.
User interaction is required.
Affected software
Spring Cloud Stream
How to mitigate CVE-2026-59303
Install security update from vendor's website.
Spring Cloud Stream - addressed in versions 4.2.7, 4.3.4, 5.0.3