CVE Catalog

CVE-2026-44308

MediumCVSS 6.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.18%

7th percentile - higher than 7% of all known CVEs

Summary

Spring Cloud AWS from 3.0.0 to 4.0.1 does not verify the signature of incoming SNS messages in its HTTP/HTTPS endpoint support (@NotificationMessageMapping, @NotificationSubscriptionMapping, @NotificationUnsubscribeConfirmationMapping). An unauthenticated attacker who knows the endpoint URL can send crafted HTTP POST requests mimicking SNS notifications.

Risk Assessment

An attacker can impersonate SNS notifications and trigger unauthorized actions in the application, potentially leading to spoofed notifications or unexpected business operations.

Recommendation

Update Spring Cloud AWS to version 4.0.2. Until patched, consider restricting network access to the SNS endpoints.

Related vulnerabilities

Original NVD description (English source)

Spring Cloud AWS simplifies using AWS managed services in a Spring and Spring Boot applications. From 3.0.0 to 4.0.1, pplications using Spring Cloud AWS SNS HTTP/HTTPS endpoint support (@NotificationMessageMapping, @NotificationSubscriptionMapping, @NotificationUnsubscribeConfirmationMapping) did not verify the signature of incoming SNS messages. An unauthenticated attacker who knows the endpoint URL could send crafted HTTP POST requests mimicking SNS Notification or SubscriptionConfirmation messages. This vulnerability is fixed in 4.0.2.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS