Is CVE-2026-44308 actively exploited?

No active exploitation of CVE-2026-44308 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-44308 be exploited remotely?

Yes. CVE-2026-44308 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-44308?

CVE-2026-44308 has a CVSS score of 6.3 (MEDIUM).

HOME VULNERABILITIESCVE-2026-44308

MEDIUM

CVE-2026-44308

CWE-345Published: May 14, 2026· Updated: May 14, 2026

6.3

CVSS v3.1

EPSS:0.07%probability of exploitation in 30 daysPercentile:20.6th

Official 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.

NVD Source

Technical Analysis

CVE-2026-44308 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeX

Impact

Confidentiality

Integrity

Availability

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