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TI-2026-32276 Aliases CVE-2026-44308GHSA-r4w4-wv68-qv85

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

Priority LOW 33CWE-345Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-345.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00179 7th percentileScored 2026-11-07
Fix Fixed spring-cloud-aws (awspring): 4.0.2spring-cloud-aws-sns (io.awspring.cloud): 4.0.2+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
awspringspring-cloud-aws3.0.0 to before 4.0.24.0.2Patch availableCNA
io.awspring.cloudspring-cloud-aws-sns3.0.0 to before 4.0.24.0.2Patch availableCNA
—io.awspring.cloud:spring-cloud-aws-sns (Maven)4.0.0 to before 4.0.24.0.2Patch availableGHSA-r4w4-wv68-qv85
—io.awspring.cloud:spring-cloud-aws-sns (Maven)3.0.0 – 3.4.2—No fix listedGHSA-r4w4-wv68-qv85
  • spring-cloud-aws Vendorawspring Affected 3.0.0 to before 4.0.2 Fixed in 4.0.2 Patch available CNA
  • spring-cloud-aws-sns Vendorio.awspring.cloud Affected 3.0.0 to before 4.0.2 Fixed in 4.0.2 Patch available CNA
  • io.awspring.cloud:spring-cloud-aws-sns (Maven) Vendor— Affected 4.0.0 to before 4.0.2 Fixed in 4.0.2 Patch available GHSA-r4w4-wv68-qv85
  • io.awspring.cloud:spring-cloud-aws-sns (Maven) Vendor— Affected 3.0.0 – 3.4.2 Fixed in — No fix listed GHSA-r4w4-wv68-qv85

Remediation

  • Fix · CNA spring-cloud-aws (awspring) Fixed in 4.0.2
  • Fix · CNA spring-cloud-aws-sns (io.awspring.cloud) Fixed in 4.0.2
  • Fix · GHSA-r4w4-wv68-qv85 io.awspring.cloud:spring-cloud-aws-sns (Maven) Fixed in 4.0.2 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-44308
  2. 2026-10-03 Alias added: GHSA-r4w4-wv68-qv85

References

Advisory 1

Other 4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences