CVE-2026-44308: CWE-345: Insufficient Verification of Data Authenticity in awspring spring-cloud-aws
Spring Cloud AWS versions from 3. 0. 0 up to 4. 0. 1 contain a vulnerability where incoming AWS SNS HTTP/HTTPS messages are not verified for authenticity. This allows an unauthenticated attacker who knows the endpoint URL to send crafted HTTP POST requests that mimic legitimate SNS Notification or SubscriptionConfirmation messages. The issue is fixed in version 4. 0. 2. The vulnerability has a medium severity rating with a CVSS score of 6.
AI Analysis
Technical Summary
CVE-2026-44308 is an insufficient verification of data authenticity vulnerability (CWE-345) in the spring-cloud-aws library. Specifically, versions from 3.0.0 to 4.0.1 do not verify the signature of incoming SNS messages when using HTTP/HTTPS endpoints with annotations such as @NotificationMessageMapping, @NotificationSubscriptionMapping, and @NotificationUnsubscribeConfirmationMapping. This flaw enables unauthenticated attackers who know the endpoint URL to send forged SNS messages, potentially causing the application to process malicious or spoofed notifications. The vulnerability is resolved in version 4.0.2.
Potential Impact
An attacker can send crafted HTTP POST requests to the SNS endpoints without authentication, potentially causing the application to accept and process spoofed SNS notifications or subscription confirmations. This could lead to unauthorized actions triggered by fake SNS messages. However, there are no known exploits in the wild at this time. The vulnerability is rated medium severity with a CVSS 4.0 score of 6.3.
Mitigation Recommendations
A patch is available in spring-cloud-aws version 4.0.2 that fixes this vulnerability by properly verifying the signature of incoming SNS messages. Users should upgrade to version 4.0.2 or later. Since this is a library used in applications, remediation requires updating the dependency and redeploying the affected applications. The vendor manages remediation for the cloud service aspects, but application owners must update their dependencies accordingly.
CVE-2026-44308: CWE-345: Insufficient Verification of Data Authenticity in awspring spring-cloud-aws
Description
Spring Cloud AWS versions from 3. 0. 0 up to 4. 0. 1 contain a vulnerability where incoming AWS SNS HTTP/HTTPS messages are not verified for authenticity. This allows an unauthenticated attacker who knows the endpoint URL to send crafted HTTP POST requests that mimic legitimate SNS Notification or SubscriptionConfirmation messages. The issue is fixed in version 4. 0. 2. The vulnerability has a medium severity rating with a CVSS score of 6.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-44308 is an insufficient verification of data authenticity vulnerability (CWE-345) in the spring-cloud-aws library. Specifically, versions from 3.0.0 to 4.0.1 do not verify the signature of incoming SNS messages when using HTTP/HTTPS endpoints with annotations such as @NotificationMessageMapping, @NotificationSubscriptionMapping, and @NotificationUnsubscribeConfirmationMapping. This flaw enables unauthenticated attackers who know the endpoint URL to send forged SNS messages, potentially causing the application to process malicious or spoofed notifications. The vulnerability is resolved in version 4.0.2.
Potential Impact
An attacker can send crafted HTTP POST requests to the SNS endpoints without authentication, potentially causing the application to accept and process spoofed SNS notifications or subscription confirmations. This could lead to unauthorized actions triggered by fake SNS messages. However, there are no known exploits in the wild at this time. The vulnerability is rated medium severity with a CVSS 4.0 score of 6.3.
Mitigation Recommendations
A patch is available in spring-cloud-aws version 4.0.2 that fixes this vulnerability by properly verifying the signature of incoming SNS messages. Users should upgrade to version 4.0.2 or later. Since this is a library used in applications, remediation requires updating the dependency and redeploying the affected applications. The vendor manages remediation for the cloud service aspects, but application owners must update their dependencies accordingly.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-05T19:00:06.021Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
- Is Cloud Service
- true
Threat ID: 6a05e888ec166c07b0eee363
Added to database: 5/14/2026, 3:21:44 PM
Last enriched: 5/14/2026, 3:37:51 PM
Last updated: 5/14/2026, 4:22:47 PM
Views: 3
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