CVE-2026-44308

MEDIUM

Spring Cloud AWS: Missing SNS message signature verification allows spoofing of HTTP/HTTPS endpoint notifications

Title source: cna
STIX 2.1

Description

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.

References (1)

Core 1
Core References

Scores

CVSS v4 6.3
EPSS 0.0018
EPSS Percentile 7.6%
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-345
Status published
Products (4)
awspring/spring-cloud-aws >= 3.0.0, < 4.0.2
io.awspring.cloud/spring-cloud-aws-sns 3.0.0 - 3.4.2Maven
io.awspring.cloud/spring-cloud-aws-sns 4.0.0 - 4.0.2Maven
io.awspring.cloud/spring-cloud-aws-sns >= 3.0.0, < 4.0.2
Published May 14, 2026
Tracked Since May 14, 2026