Vulnerability · Published Aug 27, 2026 · Assigned by vmware
CVE-2026-59303Dynamic destination cache size is not properly bound in Spring Cloud Stream
Low 3.1
In plain English
A low-severity resource allocation without limits in Spring Cloud Stream from Spring. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities).
Severity (CVSS 3.1)3.1Low
Exploit odds (30 days)0.2%top 88.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Spring | Spring Cloud Stream | 5.0.0 – through 5.0.24.3.0 – through 4.3.34.2.0 – through 4.2.6 |
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N