CVE-2026-59304: Improper caching of the original content type in Spring Cloud Stream Avro. Spring Cloud Stream 5.0.0 - 5.0.2 Spring Cloud Stream 4.3.0 - 4.3.3 Spring Cloud…

PriorityP413low3.8CVSS 3.1

AVNACLPRHUINSUCLILAN

EPSS

0.15%

4.6th percentile

Improper caching of the original content type in Spring Cloud Stream Avro. 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

6 ranges

Vendor	Product	Version range	Fixed in
spring	spring_cloud_stream	4.2.0 – 4.2.6	—
spring	spring_cloud_stream	4.3.0 – 4.3.3	—
spring	spring_cloud_stream	5.0.0 – 5.0.2	—
vmware	spring_cloud_stream	>= 4.2.0 < 4.2.7	4.2.7
vmware	spring_cloud_stream	>= 4.3.0 < 4.3.4	4.3.4
vmware	spring_cloud_stream	>= 5.0.0 < 5.0.3	5.0.3

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.