Privilege Escalation in AWS CICD Toolchain for Serverless Applications
CVE-2026-112407

8.7HIGH

Key Information:

Vendor

Aws

Status
Cicd-toolchain-for-serverless-applications
Vendor
CVE Published:
20 October 2026

What is CVE-2026-112407?

A misconfiguration in the IAM policy for the AWS CICD-toolchain-for-serverless-applications versions 1.0.7 through 1.0.10 allows remote authenticated users with push access to escalate their privileges. This vulnerability enables them to access and modify resources outside of the designated application stack within the same AWS account, exposing sensitive information and increasing the risk of data breaches. To mitigate this issue, it is recommended that users upgrade to version 1.0.11 or later.

Affected Version(s)

CICD-toolchain-for-serverless-applications 1.0.7 <= 1.0.10

References

https://github.com/aws-samples/aws-lambda-sample-applicat...
release-notespatch
https://github.com/aws-samples/aws-lambda-sample-applicat...
third-party-advisory
https://aws.amazon.com/security/security-bulletins/2026-1...
vendor-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Xidian University
.